FOSS apps: free and open source

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

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MRT Buddy

Check your Dhaka MRT / Rapid Pass balances and trips instantly
- Finance
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
MsgGo

Open source, lightweight, and modern bulk SMS tool for Android.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
MTG Familiar

MTG Familiar is a collection of utilities for playing "Magic: The Gathering"
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
mTUO

tuo port to android
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
mucke - Music Player

A music player for local files with unique custom playback options.
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Mule on Android

Search and download from the ED2K(eDonkey2000) networks
- Internet
- FOSS
- Free
- No ads
- Android only
F-Droid GitHub Zapstore
Mullvad VPN

Protect your online privacy with a fast, trustworthy, and easy-to-use VPN.
- iOS
- Android
- Windows
- macOS
- Linux
App Store Google Play Aurora Store F-Droid GitHub Zapstore
Multi Launcher ‧ Home Screen

Multi Launcher ‧ Home Screen
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
MultiLocale

Add additional languages to your device's locale settings
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
MultiVNC

VNC viewer that aims to be easy to use and fast
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Mumla

Voice chat on Mumble servers
- Internet
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
MuPDF mini

Minimalist viewer for PDF, XPS, CBZ, unprotected EPUB, and FB2 documents
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
MuPDF viewer

Lightweight document viewer
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Mupen64Plus AE

Front end for Mupen64 Plus
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Murem

Strip background music from YouTube videos using AI vocal separation.
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Murine Launcher

A modern, lightweight Launcher3 fork for an enhanced stock++ Android experience.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Muse - Text to Speech

Convert text to natural-speaking audio with custom voices and pauses
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Musekit

A simple tuner and metronome, no distractions
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Museum of a broken API

Warns against using a system usage stats API
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Mushroom Compass

A compass that show you the way to your stored mushroom spots
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Music Player Lite

An elegant and light weight music player
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
Musical Notes

train reading musical notes
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
MusicBrainz

The Official MusicBrainz App
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Musicore

A simple musicxml viewer
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
MusicSearch

MusicSearch is an app for browsing songs, artists, and anything related to them
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Musify

Unlock the full potential of music: Stream effortlessly with one app!
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Mute reminder

Remind you to mute media
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Muzei

Live wallpaper of famous art
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Muzei - Bing Image of the Day

A Muzei art source that retrieves the Bing image of the day
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Muzei Ghibli

Show pictures from Studio Ghibli (Muzei)
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Muzei Pixiv Source

Fetch illustration from Pixiv and provides them as a wallpaper source for muzei
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
My Expenses

Easy to use personal finance manager: rich functionality and Open Source
- Finance
- FOSS
- Free
- In-app purchases
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
My Leaf

Remote control and information for your Nissan Leaf
- System & tools
- FOSS
- Free
- In-app purchases
- No ads
- Android only
Google Play Aurora Store F-Droid Zapstore
My Location

Know your geo coordinates using on-device GPS and Network location providers
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
My Price Log

Track and compare prices at local shops, offline
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
My Quran - قرآني

A lightweight, offline Quran with search
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
My Sensor

Air quality monitoring from public sensor.community data
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
My Wifi Passwords

View your Wi-Fi Passwords
- Security & privacy
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
M
MyFastingApp

Fully offline fasting tracker with an Android widget
- Health & fitness
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
MyFinanceMate

Privacy-first expense tracker via SMS parsing
- Finance
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Mygeo

Share your Geo Location as Latitude and Longitude with your own template.
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
MyHackerspace (New)

View information about hacker- and makerspaces
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore Accrescent
MyKanji

A simple Android app to help you practice and memorize basic Japanese kanji.
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
MyMood

Simple and minimalistic app to track your daily mood with.
- Health & fitness
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
Myne: Download & Read eBooks

Android application to download & read ebooks from the Project GutenBerg.
- Internet
- FOSS
- Free
- Paid
- No ads
- No tracking
- Android only
Google Play F-Droid IzzyOnDroid GitHub Zapstore
MyShare

Upload photos and documents to a server on user request
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Mysterium Dark — Next Gen VPN

Decentralized VPN for Web 3: Anonymous, secure and unblocked internet
- Internet
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
mythmote

Mythtv frontend control interface.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid