Phone & SMS

Koler
uniquely stylized phone app with customizable features

Linphone - open source SIP client
SIP (VOIP) phone

Element - Secure Messenger
Group messenger - encrypted messaging, group chat and video calls

FindMyDevice
Locate your smartphone via SMS when it gets lost

SchildiChat
Secure messenger for Matrix with a traditional instant messaging experience

Jami
Secure and distributed communication platform

baresip
VoIP User Agent app for Android based on baresip SIP library

baresip+
VoIP User Agent app for Android based on baresip SIP library

Cheogram
Chat on the Jabber network (XMPP protocol); focus on features for gateway users

SMS Import / Export
Imports and exports SMS and MMS messages and call logs.

Syphon
A privacy centric matrix client

Simple Contacts Pro
A premium app for contact management with no ads, supports groups and favorites

Jitsi Meet
Instant video conferences efficiently adapting to your scale

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

Privacy Cell
Verify that a phone is using the most secure cell protocols.

FluffyChat
Chat with your friends with FluffyChat.

Baby Phone
A pretend phone app for little people who want to practice talking to others.

Silence
Block unknown callers

Wire • Secure Messenger
Wire offers highly secure communication – anywhere and anytime.

OpenContacts
A different database for contacts to keep them private only to you.

Red
Redirect outgoing calls to Signal/Telegram/Threema

Vibe
Vibrate on a call answer/end

VoIP.ms SMS
Send and read SMS via voip.ms

kMeet
Free and secure videoconferencing solution

Simlar - free and secure calls
Encrypted and free phone calls over the internet

Simple sms remote
Control your device by sending text messages

SD Contacts
Automatically store your contacts to your SD card

Flash Alert - Call and Message
Blink the terminal when receiving a call, SMS or an application notification

BluePass
BluePass extracts 2FA tokens from SMS and forwards them via Bluetooth