FOSS apps: free and open source

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

page 36

Golden Ticket

Lottery simulation game - explore strategies without spending money
- Games
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
good-echo

Time travelling audio recorder for Android.
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Goodtime: Pomodoro Timer

Productivity timer designed to keep you on track and free of distractions
- System & tools
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Goregram

A Telegram fork with minimal extra features
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Gotify

A client for receiving push notifications
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
GPA Calculator

GPA & CGPA calculator with support for AUIS grading rules
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
GPG Key Manager

GPG Tool for Android
- Security & privacy
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
G
GPN 2026 Schedule

GPN Schedule
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
GPS Cockpit

GPS Cockpit & Head-Up Display
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
GPS Locker

Keep the GPS locked at all times on an Android device.
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
G
GPS Setter

A GPS setter based on the Xposed framework.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
GPSd Forwarder

Service to forward NMEA messages to a GPSd server
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
gpsdRelay

Relay NMEA information from Android to gpsd.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
GPSLogger

A lightweight GPS logger, battery efficient, GPX/KML, add notes, share, upload.
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
GPSTest

An app for testing GPS and GNSS capabilities of a device
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
gptAssist

WebView wrapper for ChatGPT
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
GPTMobile

Your all in one chat assistant - Chat with multiple LLMs at once!
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
GPXIT

Find train connections home during your bike ride
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Grabagram

A fast-paced game of anagrams to play online with friends
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Grace Launcher

A simple launcher with an app list, calendar agenda and music controls
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Graded - Grade tracker

Track and manage your school grades with ease
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Gramophone

Simple offline music player with minimalistic design
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Graph 89

A TI Graphing Calculator Emulator
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
GraphHopper Maps

Online route planner and experimental GPS navigation
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Gravel

A de-googled, hardened fork of the Pebble companion app for de-googled phones
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Gravity Force

Demonstrates Gravity in Space. Play with Asteroids Orbits. Physics.
- Games
- FOSS
- Free
- No tracking
- Android only
Google Play Aurora Store F-Droid
Grazer Linuxtage

Browse the "Grazer Linuxtage" schedule
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Greek for AnySoftKeyboard

Greek Language Pack for AnySoftKeyboard
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
GreenStash: Track Your Savings

Plan, manage, and achieve your savings goals easily
- Finance
- FOSS
- Free
- Paid
- No ads
- No tracking
- Android only
Google Play F-Droid IzzyOnDroid GitHub Zapstore
Gridle

Word game
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Gridlink Mail

A fast, private JMAP and IMAP email client. No ads, no tracking, no Google.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Grit

A Simple ToDo List and Habit Tracker
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Groce

Grocery, to-do, and packing lists, ordered by store aisle or category. No ads.
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Grocery manager

Manage your groceries
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Grocy: Self-hosted Grocery Management

ERP beyond your fridge, now on your phone – An awesome companion app for grocy
- Health & fitness
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
G
Groestlcoin Wallet
- Finance
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
G
Groestlcoin Wallet TestNet
- Finance
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Grove

Visualize your growth.
- Health & fitness
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
GSAK for Locus

Add-on for Locus map to import geocaches from GSAK databases
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
gttrpg

Quick access for your DnD data with a built in way to track your character data.
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Guandan 掼蛋

Guandan card game for four players over local Wi-Fi. No server, no account.
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Guerrilla Mail

Quickly receive anonymous and temporary mails.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Guess

Guess a number
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Guessaday

Guess the day of week of a random date
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
GuessIron

Measure things with your cell phone
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
GuessThatPokemon

A game where you guess pokemon names and you capture them.
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Gugal

A clean and lightweight web search app.
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Guileless Bopomofo Keyboard

A simple Bopomofo software keyboard (input method editor) for typing Hanyu
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore