← All apps

Communication apps

Messaging, email and calls.

48 apps

Tuta Mail

End-to-end encrypted email, from Germany.
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- iOS
- Android
- Linux
App Store Google Play Aurora Store F-Droid Flathub Zapstore
Proton Mail

End-to-end encrypted email from Switzerland.
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- iOS
- Android
- Windows
- macOS
- Linux
App Store Google Play Aurora Store Snap Store Flathub Zapstore
Thunderbird

Free, open-source email, calendar and chat for the desktop.
- Communication
- FOSS
- Free
- No ads
- Windows
- macOS
- Linux
Flathub Snap Store
Signal

End-to-end encrypted messages and calls, run by a non-profit.
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- iOS
- Android
- Windows
- macOS
- Linux
App Store Google Play Aurora Store Flathub Snap Store Zapstore
Molly

A hardened, independent fork of Signal for Android.
- Communication
- FOSS
- Free
- Android only
GitHub Zapstore Accrescent
Element Desktop

Matrix chat on the desktop: Windows, macOS and Linux.
- Communication
- FOSS
- Free
- Windows
- macOS
- Linux
Flathub Snap Store
K-9 Mail

Full-featured email client
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Thunderbird for Android

Thunderbird is a 100% open source, privacy focused email app.
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Acho

Lightweight WebView client for Acho Chat
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
addy.io

Anonymous Email Forwarding
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Amadz - Calling App

Clean & intuitive Phone Dialer app following Material Design principles.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Archlinux Forums

Satellite application for bbs.archlinux.org forums
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Aster Mail: Encrypted Email

Private email app with end-to-end encryption, aliases, and custom domains
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Baby Phone

A pretend phone app for little ones who want to practice.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
B
Bangumi

A third-party client for Bangumi
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Bienvenido a Internet

Bienvenido a Internet text/image board browser
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
BlitzMail

Share content and notes via email
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Blorp

A Threadiverse client for Lemmy and PieFed
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
C
Call Blocker

Block unwanted calls, spam and telemarketing
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Call Counter

Control of the Plan of outgoing calls and sent sms
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Call Limiter

Limit call duration per contact and automatically hang up when time is up
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
CallScope

Local-first call log analytics
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Carrion

Block spoofed calls
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Chat Room

Real-time messaging client with text and file sharing.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
CHRONOS

Schedule your SMS in advance, without replacing your default messaging app.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
CodeCatcher

Filter Sms Messages and Automate Your Device
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Coma Phone

Auto-answers calls on speakerphone. Always hear your friends talk, even while in
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Dashchan

Client for imageboards
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Deku SMS

Deku is an SMS app that supports end to end encryption and photo sharing
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Delta Chat

Decentralized private messenger with chat-shared tools and games.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Dinomail

App to interact with DinoMail.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
D
Discuz Hub

Lightweight Discuz! Android app
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Duetto

A tiny Discord for two, on your own server: a permanent voice and video channel.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Easy-phone

Accessibility helper for the elderly or visually impaired.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
E
Emerald Dialer

Make calls, view call log
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Enclavd

Personality Social Network
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Epistolaire

SMS and MMS backup
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Ermis

Ermis M is an open-source, privacy focused mobile chat application.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Eternity

An Lemmy client for Android, forked from the Infinity for Reddit project.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Ethic One Call

Lend your phone for one call while keeping the rest private.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
FairEmail

Fully featured email client. Neat, intuitive user interface. Privacy friendly
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
FediSuite

Schedule, manage and analyze Fediverse accounts on any FediSuite instance
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
F
ForPDA

Client for 4pda.ru
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Fossify Messages

Open-source and Ad-free SMS/MMS messaging app
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Fossify Phone

Unlock a secure, open-source calling experience with Fossify Phone
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Jitsi Meet

Instant video conferences efficiently adapting to your scale
- Communication
- FOSS
- Free
- No ads
- No tracking
- iOS
- Android
- Windows
- macOS
- Linux
- Web
App Store Google Play Aurora Store F-Droid Flathub Zapstore
SimpleX Chat

SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!
- Communication
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- iOS
- Android
- Windows
- macOS
- Linux
App Store Google Play Aurora Store F-Droid GitHub Flathub Zapstore
Geddit

An open-source, Reddit client for Android without using their API
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub