FOSS apps: free and open source

Free and open-source software: the source code is public under an open licence.

page 95

Ğ1nkgo

Ğ1 Wallet: simple, quick, modern and versatile
- Finance
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
α-Remote

Bluetooth remote for Sony Alpha Cameras
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
μlogger

Location tracker with focus on privacy and energy efficiency
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
✉
✉➡🌍 Acastus-Photon

An online address/POI search for navigation apps
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
おやつ Oyatsu

Seasonal time system clock 不定時法時計ウィジェット
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
天使动漫

Official client for tsdm39.com forum
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
开屏跳过

Skip opening-screen ads in apps
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
是语输入法

A fast offline Chinese Pinyin input method
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
熊愛學臺語

A Taiwanese (tâi-gí) learning app inspired by moedict & quizlet
- Education
- FOSS
- Free
- No tracking
- Android only
Google Play Aurora Store F-Droid
素扉

Minimalist and immersive Chinese traditional poetry reader
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
萊姆輸入法

A smaller better Lime (Lightweight Input Method Editor)
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
过早客

Third-party client for www.guozaoke.com
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
随机姓名

随机中文姓名生成器
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
KitX Mobile

KitX Project's mobile implementation, based on Flutter
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
TeXeTeScribe

Read and write in text-based files: TXT, JSON, HTML, CSV, XML, YAML, INI, MD
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
USP - ZX Spectrum Emulator

Unreal Speccy Portable - ZX Spectrum Emulator
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
🌜 LunaTracker 🌛

LunaTracker is a newborn baby tracking app.
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
🍓🍓🍓

Strawberry is strawberry, strawberry 🍓🍓🍓
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
0xchat

0xchat is a secure chat app built on the Nostr protocol.
- Communication
- FOSS
- Free
- In-app purchases
- Nostr
- Android only
Zapstore Google Play Aurora Store GitHub
21Meetup

Meetups, Badges & Portal für die Einundzwanzig-Community
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
Aegis

Aegis is a simple and cross-platform Nostr signer that supports multiple connection methods.
- Security & privacy
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
Agora

Give Without Borders.
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore
Alby Go

A simple lightning mobile wallet interface that works great with Alby Hub.
- Finance
- FOSS
- Free
- Android only
Zapstore Google Play Aurora Store GitHub
Alien Fitness

Minimal, fully offline workout tracker without internet permission — custom plans, HIT intervals, live logging and progress charts.
- Android only
Zapstore GitHub
Alien Notes

Offline notes & checklists — Argon2id + AES-256-GCM, no internet permission, no cloud, Markdown preview, encrypted backup & merge.
- Productivity
- FOSS
- Free
- Android only
Zapstore GitHub
Alien Pass

Offline password manager — Argon2id + AES-256-GCM, no internet permission, no cloud, optional fingerprint unlock.
- Android only
Zapstore GitHub
Amber (UP)

Nostr event signer for Android, with UnifiedPush wake-ups
- Security & privacy
- FOSS
- Free
- Nostr
- Android only
Zapstore
Angor

Decentralized Bitcoin funding for founders and investors
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
ants

Nostr search for notes and profiles, native on Android
- Productivity
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
aqstr

Earn Bitcoin Through Social Tasks
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
Armada

Encrypted communities with text and voice. No host required. Your keys, your fleet.
- Communication
- FOSS
- Free
- Nostr
- Android
- Linux
- macOS
- Windows
Zapstore Google Play Aurora Store
Astraea

A offline-first, end-to-end encrypted calendar app that syncs privately over Nostr, on your terms.
- Security & privacy
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
Aura

Feel in color — share a moment, vibe what resonates, connect.
- Communication
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
AuraSync: Binaural Beats

Binaural beats for deep focus, calm and sleep
- Health & fitness
- FOSS
- Free
- Nostr
- Android only
Zapstore
Ausgaben-Tracker

Minimal, offline-first, encrypted personal expense tracker — no account, no server.
- Finance
- FOSS
- Free
- Android only
Zapstore GitHub
babyfort

A parent-controlled home screen for a shared Android tablet
- System & tools
- FOSS
- Free
- Android only
Zapstore
BitBlik

Bitcoin Blik codes exchange app
- Finance
- FOSS
- Free
- Android only
Zapstore GitHub
Bitcoin Boogie

stack sats or die trying
- Games
- FOSS
- Free
- Android only
Zapstore GitHub
Bitcoin Jungle

Bitcoin Jungle is helping bring the Bitcoin ecosystem to Costa Rica.
- Finance
- FOSS
- Free
- Android only
Zapstore Google Play Aurora Store GitHub
Bitpoints.me

A Cashu Ecash Wallet with Bluetooth Mesh Networking, Nostr Integration, and PWA Support
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
BitPopArt Fan App

Free Bitcoin pop art for fans — wallpapers, GIFs, animations, avatars, merch & more
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore
BitTasker

Bitcoin-powered gig economy platform connecting taskers and taskees
- Finance
- FOSS
- Free
- Nostr
- Android only
Zapstore Google Play Aurora Store
BitTwint

Bitcoin TWINT codes exchange app
- Finance
- FOSS
- Free
- Android only
Zapstore GitHub
BitWay

Bitcoin MBway codes exchange app
- Finance
- FOSS
- Free
- Android only
Zapstore GitHub
Blink - the everyday bitcoin wallet

NEW in Blink 3.0: Non-custodial accounts are here. Hold your own keys, keep the same simple experience.
- Finance
- FOSS
- Free
- Android only
Zapstore Google Play Aurora Store GitHub
Blitz Wallet

Bitcoin Payments Made Simple
- Finance
- FOSS
- Free
- Android only
Zapstore Google Play Aurora Store GitHub
Bloom

Hybrid Nostr Relay and Blossom Server.
- System & tools
- FOSS
- Free
- Nostr
- Android only
Zapstore GitHub
Bony

A bare-bones, Google-free Nostr client for Android
- Communication
- FOSS
- Free
- Nostr
- Android only
Zapstore