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