Comparison of Cloud, Sync & Email services

There are many people out there who have decided to pursue the noble goal of a Techxodus. This means:

1. Independence: using software that is not made or controlled by Big Tech monopolists (Google, Apple, Microsoft, Meta, Amazon), who together have almost unchecked control about people's digital lives. See also Techxodus Wiki
2. Freedom: only using free and open source software, i.e. software published under a copyleft or permissive license. If the developer ever becomes evil, it will be possible to fork the software. The fact that Konqueror was published under the GPL forced Apple and Google to publish the source code for their browser engines (WebKit and Blink) - thus enabling "good" forks (Brave, Ungoogled-Chromium) of "bad" software (Chrome). See also FSF Directory
3. Privacy: using software that respects the user's privacy. For example, a service that allows anonymous sign-up or offers end-to-end encryption of all user data. A closed source software can by definition not be trusted to respect the users privacy, because there is no way of really knowing what's going on in the background. See also PrivacyGuides.
4. Openness: using software that relies on open standards, thereby avoiding vendor lock-in. For example, an email provider should be compatible with any email client running on any operating system.
5. Neutrality: using software that cannot censor information or ban users, and that is ideally developed by a politically neutral entity. For example, an end-to-end encrypted messenger can't censor messages because it can't even read the messages in the first place, and a federated messenger can't ban users because there is no central server that has control over who is using the messenger.

In some cases it's easy. For example, replace your browser with Firefox - it is free software, it can be configured to respect your privacy, and it is not made by a Big Tech company nor based on their product (i.e., Chromium). Or you can use Brave Search as your search engine - it does not track its users, and it is based on its own search index (unlike DuckDuckGo and Startpage, which mostly use the Bing and Google index, respectively).

In other cases, it's almost impossible. When it comes to mobile operating systems, there are only two options: iOS made by Apple (Big Tech, not private, not open source), and Android made by Google (Big Tech, even less private, only partially open source). Symbian or BlackBerry OS are long dead. GNU/Linux exists for phones (e.g. Sailfish OS, Ubuntu Touch, postmarketOS) but is not generally available preinstalled and lacks the most important mobile apps, and is hence not yet suitable as a daily driver for 99% of people.

In some cases there might be alternatives, but they're simply inferior. OpenStreetMaps is alright, but it can't measure up to Google Maps. LibreOffice Calc is a decent product, but can't compete with Microsoft Excel.

Here, I am looking at cloud services, which includes file sync, PIM (addressbook, calendar, to-do list), as well as email hosting (which often integrates PIM services). The Big Three - Apple, Google, and Microsoft - really offer a complete package, where the individual services are working well together and offer a very convenient cloud service to users. I have set out to see whether a Techxodus is possible, and whether there is an email + file sync + PIM provider out there that ticks all the boxes: independence from Big Tech, no vendor lock-in, free and open source software, no politics, and great privacy, ideally by means of end-to-end encryption which would make it impossible for the service provider (or anyone else, like the police) to read the user data.

Click here for a list of free email providers that don't require a phone number to register and offer IMAP.

Click here to see an older version of this comparison with more information, up to date as of beginning 2022 but will not be updated anymore.

Use these checkboxes to filter the providers in the table below:

General:
Hide Big Tech megacorps
Hide proprietary (non-free) software
Hide software that can't be self-hosted
File sync:
Only show providers that offer a file cloud or file sync
Only show providers who apply end-to-end encryption by default and offer all features (sync, editing, browser access, ...) for E2E-encrypted files
Only show providers have an integration with an office suite for editing files in the browser
Only show providers who offer a Linux app for file sync
Only show coulds which can sync with Android (either via native app or via FolderSync)
PIM:
Only show providers that offer PIM features (addressbook, calendar, to-do list)
Only show providers who offer end-to-end encryption for PIM data
Only show providers who offer CalDAV/CardDAV access for PIM data
Email:
Only show providers who offer email
Only show providers who offer zero-access encryption for emails
Only show providers who offer IMAP access for emails

Comparison of Cloud, Sync & Email services

Source: eylenburg.github.io

Last updated: 29 May 2026

This table is best viewed on a monitor with 1920px width (Full HD) with 100% display scaling.

General information							File sync						Addressbook, Calendar & Tasks			Email			Pricing (single user, annual price in EUR, VAT excluded) (prices last updated in May 2026)
Product		Developer	Juris­diction	Soft­ware li­cense	Offered for self-hosting?	Data encryp­ted at rest?	End-to-end encryp­tion?	WebDAV (or other APIfor inte­gration in 3rd-party apps)?	Edit files in browser?	Share files & folders?	Two-way sync with Desktop?Windows, macOS, and Linux	Two-way sync with Android?Only Android considered as iOS does not allow third-party apps to have full file system access or background sync (and iCloud does not support two-way sync).	End-to-end encryp­tion?	Has all three?	CardDAV & CalDAV support?	Zero access encryp­tion?	IMAP support?	Custom domain support?	≥5 GB	≥15 GB	≥100 GB	≥1 TB	Comment
Apple iCloud		Apple Inc. Big Tech PRISM	🇺🇸 USA	Proprie­tary	No	Yes	Yes (limited, claimed)Opt-in "advanced data protection". Some features not available with E2EE, e.g. publicly sharing files or collaborating on iWork documents. File metadata and checksums are not E2EE. Encryption cannot be verified as apps are closed source.	No	Yes (Apple iWork)If E2EE files are accessed through a web browser, the server will receive the decryption key and store it for temporarily.	YesIf E2EE is enabled, can't share files to "anyone with a link".	No Linux support	No	No	Yes	Yes	No	Yes	Yes	free (5 GB)	€12 (50 GB)	€36 (200 GB)	€120 (2 TB)	Can be shared with up to 6 people
Aster Mail		Aster Communications Inc.	🇺🇸 USA	Free	Yes	Yes										Yes	Planned (via Aster Bridge) (Paid accounts, Desktop onlyWindows, macOS, Linux)	Yes	free (10 GB)	€25 (50 GB)	€75 (500 GB)	€150 (5 TB)
Aurora Files		Afterlogic Corp.	🇺🇸 USA	Free	Yes	Yes	Yes (limited)Unclear which featues stop working when their so-called "paranoid encryption" is activated. WebDAV (which is e.g. needed for sync on macOS, Linux and Android) by design can't work with E2EE; at most it will show the encrypted and hence useless files. OnlyOffice (for editing Office files) will either not work with E2EE or will decrypt the files.	WebDAV (not for E2EE files)	Yes (OnlyOffice)Files will be temporarily decrypted	Yes	macoS & Linux via 3rd party appssuch as GoodSync	via 3rd party appssuch as FolderSync or AutoSync											Self-hosted cost: either hardware upfront costs (~€50 for RaspPi + ~€50 for 1 TB HDD) or ~€60 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
Baikal (self-hosted)		fruux GmbH	🇩🇪 Germany	Free	Yes	depends on setup							No	Yes	Yes								Self-hosted cost: either hardware upfront costs (~€50 for RaspPi) or ~€12 p.a. for cheap VPS
Box		Box, Inc.	🇺🇸 USA	Proprie­tary	No	Yes	No	API	Yes (Microsoft Office Online)	Yes	Linux via 3rd party appssuch as GoodSync	via 3rd party appssuch as FolderSync or AutoSync							free (10 GB)	€108 (100 GB)		€486 (unlimited)only available for Team subscription with 3 users minimum	Unlimited plan shows price for 3 users (minimum amount).
Dropbox		Dropbox, Inc.	🇺🇸 USA	Proprie­tary	No	Yes	"Business Plus", limited featuresOnly available with the "Business Plus" subscription. Has important limitations in use, such as end-to-end encryption not being available for the Dropbox mobile app or no upload/download through the Dropbox API.	API	Yes (Microsoft Office Online)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync							€120 (2 TB)				Family plan also available.
Etesync		Etesync Ltd.	🇬🇧 UK	Free	Yes	Yes							Yes	Yes	Yes (via EteSync Bridge)								Hosted by EteSync developers: €21 p.a.; Self-hosted cost: either hardware upfront costs (~€50 for RaspPi) or ~€12 p.a. for cheap VPS
Fastmail		Fastmail Pty Ltd	🇦🇺 Australia	Proprie­tary	No	Yes	No	WebDAV (and FTP)	No (but can manage files in browser)	No (only team members)	via 3rd party appssuch as FreeFileSync or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	Yes, but tasks missing on website	Yes	No	Yes	Yes	€60 (10 GB)also includes 50 GB mail storage				Personal plan offers 50 GB for mail, calendar and contacts, and 10 GB for file storage. Family and duo plans are also offered.
Filen		Filen Cloud Dienste UG	🇩🇪 Germany	Clients are free or source available	No	Yes	Yes	API, also WebDAV server via Filen CLI	No (but can manage files in browser)	Yes	Yes	via 3rd party appssuch as FolderSync							free (10 GB)	€12 (100 GB)		€90 (2 TB)
Forward Email		Forward Email LLC	🇺🇸 USA	Free	Yes	Yes							Yes (temporarily decrypted)Some data will be temporarily decrypted when the user logs in, but only for that session and only in RAM. The user's IMAP password is encrypted in-memory, and then is decrypted when the data is transferred over websockets from sqlite -> imap -> client. The entire mailbox (sqlite file) is not decrypted, only an open database in-memory that can be read/written to. See here for details	Yes	Yes	Yes	Yes (needs PGP support in client)To use encrypted mail (zero access encryption), the user will need to decrypt them on the local device, e.g. using Thunderbird, or the OpenKeychain app on Android	Yes	€31 (10 GB)	€62 (20 GB)	€309 (100 GB)
fruux		fruux GmbH	🇩🇪 Germany	Proprie­tary	No	Yes							No	Yes	Yes								Free for syncing two devices, otherwise €40 p.a.
Google One Google Drive & GMail etc.		Alphabet Inc. Big Tech PRISM Evil	🇺🇸 USA	Proprie­tary	No	Yes	No	API	Yes (Google Docs Editors)	Yes	Linux via 3rd party appssuch as insync, FreeFileSync, or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes, except tasks (own API)	No	Yes	Yes	free (15 GB)		€20 (100 GB)	€100 (2 TB)	Can be shared with up to 6 people
GMX/Mail.com		United Inter­net AG	🇩🇪 Germany	Proprie­tary	No	In transit only	No	WebDAV (and FTP)	Yes (GMX Online Office)based on LibreOffice	Yes	via 3rd party appssuch as FreeFileSync or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	Yes, but tasks missing on website	Yes	No	Yes	Yes	free (65 GB)additional 2 GB for >50MB attachments
Icedrive		ID Cloud Services Ltd.	🇬🇧 UK	Proprie­tary	No	Yes	Yes (limited)optional "encrypted folder" with limited features, e.g. no WebDAV	WebDAV (not for E2EE files)	No (but can manage files in browser)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync							free (10 GB)	€99 (2 TB)			Lifetime purchase options also available.
Infomaniak kDrive & Workspace		Infomaniak Network SA	🇨🇭 Switzerland	Clients are free	No	Yes	No	WebDAV	Yes (OnlyOffice or Microsoft Office"Pro" subscription required)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes	No	Yes	Yes	free (15 GB)additional 20 GB for emails		€79 (3 TB)		Paid plans offer unlimited storage for emails
Internxt Drive		Internxt Universal Technolo­gies SL	🇪🇸 Spain	Free	Yes	Yes	Yes	No (not compatible with E2EE)	No (but can manage files in browser)	Yes	Yes	No							€120 (1 TB)				Lifetime purchase options also available.
Kolab Now		Apheleia IT AG	🇨🇭 Switzerland	Free	Yes	In transit only	No	WebDAV	Yes (Collabora Office)	Yes	via 3rd party appssuch as FreeFileSync or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes	No	Yes	Yes	€130 (5 GB)only email (without files, calendar etc.) for €65 p.a.	€163 (15 GB)only email (without files, calendar etc.) for €98 p.a.	€442 (100 GB)only email (without files, calendar etc.) for €377 p.a.
Koofr		Koofr d.o.o.	🇸🇮 Slovenia	Proprie­tary, but Vault app is free	No	Yes	Yes (limited)optional "encrypted Vault" with limited features, e.g. no WebDAV	WebDAV (not for E2EE files), rsyncrsync can be used to sync Vaults (E2E-encrypted files) to a computer	Yes (Microsoft Office Online)	Yes	Yes (Vault files require rsync)	via 3rd party appssuch as FolderSync or AutoSync							free (10 GB)	€12 (35 GB)	€24 (110 GB)	€120 (1.01 TB)
Linshare		Linagora	🇫🇷 France	Free	Yes	"coming soon"	No	No	Yes (OnlyOffice)	Yes	"coming soon"	No											Self-hosted cost: either hardware upfront costs (~€50 for RaspPi + ~€90 for 1 TB HDD) or ~€40 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
Mailbox.org		Heinlein Hosting GmbH	🇩🇪 Germany	Mostly free (mostly based on Open-Xchange)	No alternative: Open-Xchange	Yes	Yes (limited)Option to encrypt/decrypt files with PGP in the browser, but no further integration (e.g. can't open in OX Documents, WebDAV sync will simply transfer the encrypted files)	WebDAV	Yes (OX Documents)	Yes	via 3rd party appssuch as FreeFileSync or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes	Yes	Yes (needs PGP support in client)To use encrypted mail (zero access encryption), the user will need to decrypt them on the local device, e.g. using Thunderbird, or the OpenKeychain app on Android	Yes	€30 (5 GB)Standard plan. Also includes 10 GB mail storage	€40 (15 GB)Standard plan. Also includes 10 GB mail storage	€114 (100 GB)Premium plan. Also includes 25 GB mail storage	€546 (1 TB)Premium plan. Also includes 25 GB mail storage
Mailfence		ContactOffice Group SA	🇧🇪 Belgium	Proprie­tary	No	"coming soon"	No	WebDAV	Yes (ContactOffice)based on Zoho Office	Yes	via 3rd party appssuch as FreeFileSync or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	No tasks	Yes	No, but offers OpenPGP in browserSee here	Yes	Yes	€30 (6 GB)also includes 5 GB mail storage	€42 (30 GB)also includes 10 GB mail storage
Mega		Mega Ltd.	🇳🇿 New Zealand	Proprie­tary but source avai­lable (clients)	No	Yes	Yes	API, also WebDAV server via MegaCMD	No (but can manage files in browser)	Yes	Yes	Yesusing the official app or 3rd party apps such as FolderSync or AutoSync							free (20 GB)		€40 (200 GB)	€100 (3 TB)
Microsoft 365 OneDrive & Outlook.com		Microsoft Corp. Big Tech PRISM	🇺🇸 USA	Proprie­tary	No	Yes	No	API	Yes (Microsoft Office Online)	Yes	Linux via 3rd party appssuch as insync, FreeFileSync, or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Uses MS Exchange instead	No	Yes	Yes	free (5 GB)also includes 15 GB mail storage	€20 (100 GB)also includes 100 GB mail storage		€99 (1 TB)also includes 100 GB mail storage	Family plan for 1-6 users also available. 1 TB plan & Family plan include Copilot (in case of the family plan, for subscription owner only) and Microsoft Office Online.
Murena Workspace1		Murena	🇫🇷 France	Free	Yes	Yes	No	WebDAV	Yes (OnlyOffice)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes	No	Yes	No	€20 (20 GB)		€60 (128 GB)	€130 (1 TB)	Self-hosted cost: either hardware upfront costs (~€50 for RaspPi + ~€90 for 1 TB HDD) or ~€40 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
Nextcloud (various hosters)		Nextcloud GmbH	🇩🇪 Germany	Free	Yes	Yes	Yes (limited)optional "encrypted folder" with limited features, e.g. no access in browser	WebDAV (not for E2EE files)	Yes (Nextcloud Officebased on Collabora Office and othersOnlyOffice, Collabora Office, Hancom Office, Microsoft Office Online)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync; the Nextcloud app also has a so-called "two-way sync" but it actually ignores local changes	No	Yes	Yes				Hetzner Storage Share: Ionos Managed Nextcloud: Hosting.de Managed Nextcloud:		€51 €72 €59	€51 €108 €119	Can be shared by multiple users. Self-hosted cost: either hardware upfront costs (~€50 for RaspPi + ~€90 for 1 TB HDD) or ~€40 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
Nordlocker		Nordsec Ltd.	🇵🇦 Panama	Proprie­tary	No	Yes	Yes (claimed)encryption cannot be verified as apps are closed source	No (not compatible with E2EE)	No (but can manage files in browser)	No (only with other Nordlocker users)	No Linux support	No							€30 (500 GB)			€72 (2 TB)
pCloud		pCloud AG	🇨🇭 Switzerland	Proprie­tary	No	Yes	Yes (limited) (claimed)optional "encrypted folder" with limited features, e.g. no sync or sharing; encryption cannot be verified as apps are closed source	API	No (but can manage files in browser)	Yes (except E2EE files)	Yes (except E2EE files)	via 3rd party appssuch as FolderSync or AutoSync							€50 (500 GB)			€100 (2 TB)	Family plan and lifetime purchase options also available.
Peergos		Peergos Ltd	🇬🇧 UK	Free	Yes	Yes	Yes	API, also WebDAV server via local bridge	Yes ("Web Office", based on LibreOffice)	Yes	Yes	Yes	Yes	Calendar only	No (web only)				€41 (200 GB)			€111 (1 TB)	Self-hosted cost: either hardware upfront costs (~€50 for RaspPi + ~€50 for 1 TB HDD) or ~€60 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
Posteo		Posteo e.K. Non-Corporate	🇩🇪 Germany	Free	No	Yes							Yes (temporarily decrypted)The data will be temporarily decrypted whenever modifications are made, e.g. in the browser or via an app using CalDAV	Yes, but tasks missing on website	Yes	Yes	Yes	No	€15 (5 GB)	€45 (15 GB)	max. 50 GB (€150)
Proton		Proton Technolo­gies AG	🇨🇭 Switzerland	Some clients are free	No	Yes	Yes	No (not compatible with E2EE)	Some (Proton Docs, Proton Sheets)Only supports word processing, spreadsheets but not presentations	Yes	No Linux support	No	Yes	No tasks	No	Yes	via Proton­Mail Bridge (Paid accounts, Desktop onlyWindows, macOS, Linux)	Yes	free (5 GB)also includes 1 GB mail storage	€48 (200 GB)also includes 1 GB mail storage			Proton also offers a 500GB plan for 120€ p.a. which also includes Proton Suite (Mail, VPN, Password Manager, AI Chatbot). Family and duo plans are also offered.
Radicale (self-hosted)		Kozea Commu­nity Non-Corporate Non-Profit	🇫🇷 France	Free	Yes	depends on setup							No	Yes	Yes								Self-hosted cost: either hardware upfront costs (~€50 for RaspPi) or ~€12 p.a. for cheap VPS
Runbox		Runbox Solutions As	🇳🇴 Norway	Free	No	In transit only	No	FTP	No (but can manage files in browser)	No	via 3rd party appssuch as FreeFileSync or GoodSync	via 3rd party appssuch as FolderSync or AutoSync	No	No tasks	Yes	No	Yes	Yes	€35 (10 GB)additional 1 GB for files	€50 (25 GB)additional 2 GB for files	€120 (100 GB)additional 10 GB for files
Seafile (various hosters)		Seafile Ltd.	🇨🇳 China	Free	Yes	Yes	Yes (limited)optional "encrypted libraries" with limited features, e.g. no WebDAV; furthermore, if encrypted libraries are accessed through a web browser, the server will receive the password and store it for one hour.	WebDAV (not for E2EE files) & API	Yes (Only­Office or Colla­bora Office)If E2EE files are accessed through a web browser, the server will receive the decryption key and store it temporarily.	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync							Single user prices: Luckycloud:		€86	€426	Self-hosted cost: either hardware upfront costs (~€50 for RaspPi + ~€90 for 1 TB HDD) or ~€40 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
StartMail		StartMail B.V.	🇳🇱 Netherlands	Proprie­tary	No	Yes							No	Addressbook only	No	Yes (temporarily decrypted)emails are temporarily decrypted when accessing them, e.g. via browser or an IMAP client	Yes	Yes	€60 (20 GB)
Sync.com		Sync.com, Inc.	🇨🇦 Canada	Proprie­tary	No	Yes	Yes (claimed)encryption cannot be verified as apps are closed source	No (not compatible with E2EE)	Yes (Microsoft Office Online)Files will be temporarily decrypted	Yes	No Linux support	No							€36 (150 GB)			€124 (1 TB)
Syncthing (P2P sync)		Syncthing Foundation Non-Corporate Non-Profit	🇸🇪 Sweden	Free	Yes	depends on setupAlways encrypted in transit. By default Syncthing syncs files directly between device without using a server. It is up to you whether you encrypt your devices's storage or not.	n/a (server­less)	n/a (server­less) but possibleYou could set up one always-on device as a "server" which then makes the files available via WebDAV like a normal cloud server	No	No	Yes (even on Unix)Official supported are: FreeBSD, NetBSD, OpenBSD, DragonflyBSD, Illumos, and Solaris	Discont'd, requires 3rd party app	Serverless sync possible with DecSync										Self-hosted server cost: either hardware upfront costs (~€50 for RaspPi + ~€90 for 1 TB HDD) or ~€40 p.a. for cheap VPS (e.g. 1 TB at AlphaVPS)
Tresorit		Tresorit AG	🇨🇭 Switzerland	Proprie­tary	No	Yes	Yes (claimed)encryption cannot be verified as apps are closed source	No (not compatible with E2EE)	No	Yes	Yes	No							€48 (50 GB)		€120 (1 TB)
Tuta		Tutao GmbH	🇩🇪 Germany	Clients are free	No	Yes							Yes	No tasks	No	Yes	No	Yes	€36 (20 GB)		€96 (500 GB)
Wölkli1 Cloud & Mail		oriented.net LLC	🇨🇭 Switzerland	Free	No	Yes	No	WebDAV	Yes (Only­Office or Colla­bora Office)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes	Yes	Yes (needs PGP support in client)To use encrypted mail (zero access encryption), the user will need to decrypt them on the local device, e.g. using Thunderbird, or the OpenKeychain app on Android	Yes	€66 (10 GB)	€197 (100 GB)			Family plan is also offered. Cloud and Mail have to be purchased separately.
Yahoo Mail		Yahoo, Inc. PRISM	🇺🇸 USA	Proprie­tary	No	In transit only							No	Yes	Yes	No	Yes	No	free (15 GB)		€30 (100 GB)	€120 (1 TB)
Yandex Disk & Mail		Yandex N.V.	🇷🇺 Russia	Proprie­tary	No	Yes	No	WebDAV	Yes (Microsoft Office Online)	Yes	Yes	via 3rd party appssuch as FolderSync or AutoSync	No	Yes	Yes	No	Yes	Yes	€22 (200 GB)			€25 (1 TB)	Family plan also available.
Zoho Workspace		Zoho Corp.	🇮🇳 India 🇺🇸 USA	Proprie­tary	No	Yes	No	API	Yes (Zoho Office)	Yes	Yes	Notheoretically possible via 3rd party tools using Zoho's API but currently not supported by either FolderSync or AutoSync	No	Yes	Yes, except tasks	No	Yes	Yes	€32 (10 GB)Workplace Standard for 1 user (Teams with fewer than 3 users will get 10 GB per user). Also includes 30 GB mail storage	€65 (100 GB)Workplace Professional for 1 user (Teams with fewer than 3 users will get 100 GB per user). Also includes 100 GB mail storage		€194 (1 TB)Workplace Professional for 3 users who can share 1 TB. Also includes 100 GB mail storage

So, what's the conclusion?

There are multiple possibilities. Below I have set up five strategies how to manage your cloud setup.

Strategy 1: Don't bother and stay in the Big Tech ecosystem. At least it's comfortable and just works.

• Apple iCloud (€120 p.a. for 2 TB) Big Tech Incompatible with Android and Linux Opt-in E2EE for files
• Google One (Drive & Gmail) (€100 p.a. for 2 TB) Big Tech No privacy Bond villains Incompatible with Linux
• Microsoft 365 (OneDrive & Outlook.com) (€99 p.a. for 1 TB files and 100 GB mail) Big Tech No privacy Incompatible with Linux

All these companies offer the whole spectrum of sync and cloud services - files, mail, and PIM. You'll have to assume that your data will be sold to advertisers and made available to the US government, you will be locked into the ecosystem with no easy way to export all of your data, and you will be forced to use a proprietary operating system, but if you're fine with all of that everything will "just work" and be well integrated with each other.

If you're using a Mac and an iPhone, going with iCloud is an obvious choice. For example, all cloud apps except iCloud are forbidden to run in the background on iOS, so if you set up an automatic camera upload it will only work when you leave the app open and screen on - except for iCloud uploads which are allowed to happen in background. Apple now offers "Advanced Data Protection", which claims to apply end-to-end encryption to all of your data except for mail, contacts and calendars. So they are actually not a bad choice! The main downside is that you can't use iCloud with an operating system that respects your privacy (e.g. Linux or degoogled Android). And of course that nothing is open source so you need to trust Apple to not have a backdoor anywhere.

If you need Microsoft Office you might as well use the 1 TB OneDrive you get for free with it (besides, I have to admit that Microsoft's family subscription is great value for money, especially if you buy it for half price from Amazon).

The only one that doesn't really make sense is the Google ecosystem; they neither have the best products nor the best prices, and they are arguably the most evil of the three Big Tech companies.

By the way, even if you use a non-private cloud provider, you can still encrypt your files with a tool like Cryptomator for "DIY" end-to-end encryption, though you will lack some features that cloud providers with native E2EE provide. For emails, you can try to use PGP encryption as much as possible.

Strategy 2: Avoid Big Tech and use a different one-stop solution, but one that claims to respect your privacy.

Just because a company is not usually called "Big Tech" doesn't mean it behaves any better. For example, if you have an account with Yahoo you can be sure that all your data will be used for targeted advertising and if you have an account with Yandex all your data will go straight to the Russian FSB. But there are some providers who at least claim to respect your privacy:

• Murena (€130 p.a. for 1 TB) Open Source
• Infomaniak (kDrive & Workspace) (€79 p.a. for 3 TB) Hosted in Switzerland Open Source
• Wölkli Cloud & Mail (€416 p.a. for 5 GB mail + 100 GB files) Email with zero access encryption Hosted in Switzerland Open Source Ridiculously expensive
• Zoho Workspace (€194 p.a. for 1 TB) - targets business users rather than private individuals
• If you don't need a lot of cloud storage and are fine with just WebDAV access, these mail-focused providers could also be interesting:
  • Fastmail (€60 p.a. for 50 GB mail + 10 GB files) No file sync client
  • Kolab Now (€442 p.a. for 100 GB) Hosted in Switzerland Open Source No file sync client Expensive
  • Mailbox.org (€114 p.a. for 100 GB) Email with zero access encryption Open Source No file sync client
  • Mailfence (€42 p.a. for 10 GB mail + 30 GB files) No file sync client
  • Runbox (€80 p.a. for 50 GB mail + 5 GB files) Open Source No file sync client

These companies claim to respect your privacy, not scan your data, and not sell your data to advertisers. That's probably good enough for most people who don't want to be spied on and don't want to support the Big Tech monopolists, but also don't really need end-to-end encryption or protect their data from the government. Keep in mind that these companies can claim to not read your data, but there's nothing technically stopping them from it. If you do need or want that extra protection to keep your data safe from anyone's eyes, then you need to either get end-to-end encryption for all your services or you need to self-host at home.

Strategy 3: End-to-end encryption (E2EE) for everything, so that your provider can't access your data.

Strategy 3a: E2EE one-stop solutions

• Proton (€120 p.a. for 500 GB) E2EE Hosted in Switzerland Open Source No ProtonDrive app for Linux Can't edit files in browser No CalDAV/CardDAV No tasks in calendar No IMAP on mobile

Sadly, there is only one provider out there that offers a combination of mail hosting, calendar/contacts, and file cloud with all items fully end-to-end encrypted. That one provider is Proton Technologies. Unfortunately, while ProtonMail is a great and mature product, the other offerings (ProtonCalendar and ProtonDrive) are still rather immature.

Strategy 3b: combination of multiple E2EE services

• For email, choose from:
• Proton Zero knowledge email encryption Compatible with PGP Hosted in Switzerland Open Source Forced to use their mobile app
• Mailbox.org Zero knowledge email encryption (optional) Compatible with PGP IMAP
• ForwardEmail Zero knowledge email encryption (optional) Compatible with PGP IMAP
• For contacts, calendar, and tasks, choose from:
• Proton E2EE Hosted in Switzerland Open Source Forced to use their apps
• EteSync E2EE Open Source CalDAV/CardDAV Buggy?
• For file sync, choose from:
• Mega E2EE API for 3rd-party apps Can't edit files in browser
• Filen E2EE Open Source Can't edit files in browser
• Peergos E2EE Open Source
• Tresorit E2EE Hosted in Switzerland No API for 3rd-party apps Closed source

For encrypted mail there are several options. ProtonMail is often recommended as the best one as it is easy to use and compatible with PGP. Tuta is another name heared often, but they don't use PGP for their encryption, so there is no compatibility with users of other email providers, though their encryption method has the big advantage of also encrypting metadata. For encrypted calendars and contacts, the best option is in theory EteSync, but Proton and Tuta are also available if you don't mind using their apps on all platforms. Finally, there are several files clouds with end-to-end encryption and Linux support, such as Filen, Mega and Tresorit. Of these, Mega and Filen is the slightly superior choice as it has an API to integrate with other applications (e.g. FolderSync support for Android), and with you can even set up WebDAV if you want.

Strategy 4: Self-host. No need for E2EE if your data isn't stored on someone else's computer.

Strategy 4a: Self-host on a home server

• Murena (based on Nextcloud, includes email)
• Nextcloud + your own mail server or you keep your old email hoster and connect it to the Nextcloud mail app
• If you don't want to spend too much time setting up your homeserver you may want to consider a plug-and-play solution such as Homedrive or Nextbox.
• Seafile or Peergos for files + Baikal/Radicale for contacts and calendar + your own mail server
• Kolab No file sync client

Self-hosting means taking full control of your data. Keep in mind that you should ideally self-host at home, on your own server. Renting a VPS might be easier, but in the end your hoster can still read your data if they really want to (or are forced by the government). However, self-hosting also has a number of downsides: software updates going wrong, home Internet going down, hardware problems, taking care of backups, ...

Strategy 4b: Serverless (peer-to-peer) synchronization. Not possible for email though.

• Syncthing for files + DecSync for contacts and calendar.

Syncthing and DecSync are serverless and can directly sync between different devices as long as they are online at the same time. You can leave a synched computer at home running all the time (or rent a VPS, but with the same privacy concerns mentioned above) which would essentially act as a "server" with which your other devices can sync whenever they're online. Email is not part of this solution; you could host your own mail server or just use one of the other providers.