Phone & SMS
Linphone - open source SIP client
SIP (VOIP) phone
SchildiChat
Secure messenger for Matrix with a traditional instant messaging experience
Jitsi Meet
Instant video conferences efficiently adapting to your scale
FindMyDevice
Locate your smartphone via SMS when it gets lost
baresip+
VoIP User Agent app for Android based on baresip SIP library
Session F-Droid
Encrypted private messenger
Jami
Secure and distributed communication platform
baresip
VoIP User Agent app for Android based on baresip SIP library
Element - Secure Messenger
Group messenger - encrypted messaging, group chat and video calls
FluffyChat
Chat with your friends with FluffyChat.
Cheogram
Chat on the Jabber network (XMPP protocol); focus on features for gateway users
Wire • Secure Messenger
Wire offers highly secure communication – anywhere and anytime.
SMS Import / Export
Imports and exports SMS and MMS messages, call logs, and contacts.
Silence
Block unknown callers
kMeet
Free and secure videoconferencing solution
Simple Contacts Pro
Contacts address book for managing recent contacts and vcf contact backups
AirMessage
Use iMessage on your Android phone! (Mac computer required)
Privacy Cell
Verify that a phone is using the most secure cell protocols.
Text Torch
Shine a light on your texting behavior
SMS Forward
SMS Forward is a simple app that allows you to redirect SMS.
Vibe
Vibrate on a call answer or end
Flash Alert - Call and Message
Blink the terminal when receiving a call, SMS or an application notification
Koler
uniquely stylized phone app with customizable features
Red
Redirect outgoing calls to Signal/Telegram/Threema
Syphon
A privacy centric matrix client
Raise To Answer
Simply hold your phone to your ear to answer an incoming call
Föhnix
The Foehnix weather widget aims at helping pilots with weather conditions
Baby Phone
A pretend phone app for little people who want to practice talking to others.
OpenContacts
A different database for contacts to keep them private only to you.
VoIP.ms SMS
Send and read SMS via voip.ms
