privacyapps.ioPrivacy checkup

Private cloud storage services

15 apps, each with a privacy passport

The big question is who holds the key. Services with end-to-end encryption scramble files on your device before upload, so the company only stores data it cannot read; others encrypt on their own servers and can open files if asked. Self-hosted options and device-to-device sync skip the provider entirely.

Leaving one of these?

If you only try two

Privacy passport
Proton Drive
Cloud storage
Our pick
No tracking
Minimal
Open source
Partly
Only you can read it
Encrypted
No account
Needed
Free
Free plan
2 of 5 checks
- Android
- iPhone
- Mac
- Windows
- Web
5 GB free, encrypted docs and sheets included
Privacy passport
Filen
Cloud storage
Our pick
No tracking
Not stated
Open source
Partly
Only you can read it
Encrypted
No account
Needed
Free
Free plan
2 of 5 checks
- Android
- iPhone
- Mac
- Windows
- Linux
- Web
Cheap, encrypted, apps for every device

All 15 cloud storage services

Passes

Works on

15 of 15 apps

Proton DrivePick

Service

Swiss cloud drive where files, photos and the built-in Docs and Sheets are encrypted on your device before upload.

Minimal tracking
Partly open
End-to-end encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Web

FilenPick

Service

German cloud storage with zero-knowledge encryption, open-source apps on every platform and low prices.

Tracking not stated
Partly open
End-to-end encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

Tresorit

Service

Swiss encrypted file sync and sharing owned by Swiss Post, built for sensitive documents and teams.

Minimal tracking
Closed source
End-to-end encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

Sync.com

Service

Canadian cloud storage with end-to-end encrypted sync and sharing, including a free plan.

Tracking not stated
Closed source
End-to-end encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

MEGA

Service1.9k

Cloud storage with a large free plan where files are encrypted in your browser or app before upload.

Tracking not stated
Partly open
End-to-end encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

InternxtAudited

Service

Spanish zero-knowledge cloud drive with open-source apps, a small free plan and published audits.

Tracking not stated
Partly open
End-to-end encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

pCloud

Service

Swiss cloud storage with lifetime plans and an optional client-side encrypted Crypto folder.

Tracking not stated
Closed source
Partly encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

Icedrive

Service

Low-cost cloud storage with an encrypted folder for files you want only you to read.

Tracking not stated
Closed source
Partly encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

Koofr

Service206

Slovenian cloud storage with no tracking promise, cheap plans and an optional open-source encrypted Vault.

Tracking not stated
Closed source
Partly encrypted
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

kDrive

Service

Swiss cloud drive from Infomaniak with online document editing, hosted and developed in Switzerland.

Tracking not stated
Partly open
Provider can read it
Account needed
Free plan

Android
iPhone
Mac
Windows
Linux
Web

Nextcloud

Self-hosted37.3k

Run your own cloud for files, calendars, notes and forms on a server you control, with apps for every device.

No tracking
Open source
On your server
Account needed
Free

Android
iPhone
Mac
Windows
Linux
Web

Seafile

Self-hosted15.4k

Fast self-hosted file sync where each library can be encrypted with a password only you know.

No tracking
Open source
On your server
Account needed
Free

Android
iPhone
Mac
Windows
Linux
Web

ownCloud Infinite Scale

Self-hosted2.2k

Self-hosted file sync and sharing platform rewritten in Go, with desktop and mobile apps.

No tracking
Open source
On your server
Account needed
Free

Android
iPhone
Mac
Windows
Linux
Web

Syncthing

App89.7k

Keeps folders in sync directly between your own devices, encrypted in transit, with no cloud in the middle.

Minimal tracking
Open source
Stays on device
No account
Free

Mac
Windows
Linux

PeergosAudited

Service2.5k

End-to-end encrypted storage and sharing built on a peer-to-peer network, hosted or self-run.

Tracking not stated
Open source
End-to-end encrypted
Account needed
Free plan

Mac
Windows
Linux
Web

What to check in cloud storage services

1 Files are encrypted on your device, not just on the server
2 Apps for every device you use, including photo backup
3 Where the company is based and what the free plan includes

More in files & work