Phone & SMS
baresip+
VoIP User Agent app for Android based on baresip SIP library
Session F-Droid
Encrypted private messenger
Silence
Block unknown callers
baresip
VoIP User Agent app for Android based on baresip SIP library
Wire • Secure Messenger
Wire offers highly secure communication – anywhere and anytime.
Saracroche
Block unwanted spam calls automatically and protect your privacy
Jami
Share, freely and privately
Deku SMS
Deku is an SMS app that supports end to end encryption and photo sharing
Vibe
Vibrate on a call answer or end
Find My Device (FMD)
Locate and control your device remotely
Linphone - open source SIP client
SIP (VOIP) phone
FluffyChat
Call Limiter
Limit call duration per contact and automatically hang up when time is up
SpamBlocker (Call & SMS)
Spam Call/SMS blocker
SimpleX Chat
SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!
Jitsi Meet
Instant video conferences efficiently adapting to your scale
Keep Alive Lite
Notify others if you haven't used your device in a given period of time
Fossify Phone
Unlock a secure, open-source calling experience with Fossify Phone
SchildiChat Legacy
Secure messenger for Matrix with a traditional instant messaging experience
Contacts
An open-source, fully-functional contacts app
Keep Alive
Notify others if you haven't used your device in a given period of time
Fossify Messages
Open-source and Ad-free SMS/MMS messaging app
Fossify Contacts
Manage your contacts privately and efficiently with vCard support
Cheogram
Chat on the Jabber network (XMPP protocol); focus on features for gateway users
Infomaniak kMeet
Free and secure videoconferencing solution
Emerald Dialer
Make calls, view call log
Logger
Track, Analyze, and Manage Your Calls
SMS Import / Export
Imports and exports SMS and MMS messages and other data.
Welefon
Phone with API
< polycule >
A geeky and efficient [matrix] client for power users
