Proton
Empowering you to choose a better internet where privacy is the default. Protect yourself online with Proton Mail, Proton VPN, Proton Calendar, Proton Drive. Proton Pass and SimpleLogin.
Proton Mail is the world's largest secure email provider. Swiss, end-to-end encrypted, private, and free.
Proton VPN is the world’s only open-source, publicly audited, unlimited and free VPN. Swiss-based, no-ads, and no-logs.
Proton Calendar is the world's first end-to-end encrypted calendar that allows you to keep your life private.
Proton Drive is a free end-to-end encrypted cloud storage that allows you to securely backup and share your files. It's open source, publicly audited, and Swiss-based.
Proton Pass Proton Pass is a free and open-source password manager which brings a higher level of security with rigorous end-to-end encryption of all data (including usernames, URLs, notes, and more) and email alias support.
SimpleLogin lets you send and receive emails anonymously via easily-generated unique email aliases.
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Try Molly, it's a fork of the Signal client for Android, which improves battery life (even with WebSockets) or alternatively allows you to use UnifiedPush. Signal doesn't support UP natively, but Molly has created a bridge called mollysocket, which takes Signal notifications and forwards them to your UnifiedPush server of choice. You can self-host it, or just use a public instance like https://adminforge.de/services/mollysocket/. They also host an instance of ntfy (UnifiedPush server) at ntfy.adminforge.de. If you have questions on how to set this up, feel free to DM me. But it's pretty easy and you don't need to self-host anything. And it's perfectly secure, because although the mollysocket server is added as a linked device in Signal, it doesn't get the encryption keys to your messages. So it can't decrypt your messages or see the content of your notifications.
can i just replace Signal with it or are there limitations?
Yes, there are no limitations. I've been using it since January and it's been fantastic. Just keep in mind that there are multiple versions of Molly, and UnifiedPush support is not included in the main version. You either need to pull the APK from the mollyim-android-unifiedpush repo, or add the Molly F-Droid repo and download the UnifiedPush version from there. For the UnifiedPush client, you just need to download ntfy from F-Droid, GitHub or Google Play, go to the settings, set the server to
https://ntfy.adminforge.de
, and set the Connection protocol to WebSockets. In the Molly-UnifiedPush app, go to Settings -> Notifications, set the server tohttps://molly.adminforge.de
and set the Delivery Method to UnifiedPush. I know that my explanation wasn't particularly great, but it should work. Will soon post a better guide to [email protected]