E-mail inbox, online office, cloud storage, and video conferencing. Business or personal plans. From 1 € /month (1.10 USD).
Germany
EU
+3
Proton Mail AlternativesOnly apps categorised as Cloud Storage Services
The best Cloud Storage alternative to Proton Mail is mailbox. It's not free, so if you're looking for a free alternative, you could try Infomaniak kMail or Mailo. If that doesn't suit you, our users have ranked more than 100 alternatives to Proton Mail and five of them are Cloud Storage Services so hopefully you can find a suitable replacement. Other interesting Cloud Storage Service alternatives to Proton Mail are Thexyz and Kolab Now.
filter to find the best alternatives
Proton Mail alternatives are mainly Cloud Storage Services, but if you're looking for WebMail Providers or Calendar Apps you can filter on that. Other popular filters include Free, Open Source and Self-Hosted. These are just examples - use the filter bar below to find more specific alternatives to Proton Mail.
Alternatives list
- 82 mailbox alternatives
49 Infomaniak kMail alternativesPrivacy-focused Swiss email system provides 20 GB free storage, supports custom domains and unlimited storage, syncs contacts and calendars, is ad-free, and is part of a secure productivity suite used by over a million users across Europe on all devices.
Cost / License
- Freemium
- Open Source (GPL-3.0)
Application types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- F-Droid
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Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- OpenPGP
+3
Thexyz build the best tools around for email to make your life simple. Continually updating the product offerings to give customers the very best in email and domain technology.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
Cost / License
- Paid
- Open Source
Application types
Platforms
- Online
- Software as a Service (SaaS)
- DAVx5
Switzerland
France
Canada
Mailbox.org is a partial replacement for Protonmail. It offers a fully functional email solution (email, calendar, contacts), but with the added benefits of PGP encryption support (you can handle the keys or let them do it). It also allows you to send links to people who don't use PGP if you want to send private messages. For the encryption, it's a bit like Protonmail. For everything else, it's like a privacy-respecing Gmail alternative.