Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
The ultimate F-Droid setup (300+ Apps)
Spectrum Spectogram Analyzer was designed with accuracy and easy of use in mind. It can be used for monitoring or measuring environmental sound or noise; help tuning instruments; timing short sound events; and educational purpose.
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
Analyze and monitor your network with this open source tool.
Worth mentioning :
Net Monitor (PFA)Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Linux
- Android
- iPhone
- F-Droid
“Data Monitor" is a user-friendly, free and open source app for you to manage your data usage. “Data Monitor" helps you to accurately measure your daily data traffic, and analyze the data in a way easy to understand.
Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- Android Tablet
- F-Droid
- zsh
- GNU Bourne Again SHell
Social & communication PART I - Dialer & contact app
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
HAS BEEN PURCHASE BY A ZIPOAPPS WILL NOT BE UPDATED ON F-DROID
A simple dialer app from Simple Mobile Tools
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Android
- Android Tablet
- F-Droid
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
Social & communication PART II - SMS app
Remember that SMS is not a secure way to communicate !
The king of SMS apps (even better than stock non FOSS ones)
Worth mentioning :
Simple SMS MessengerCost / License
- Freemium
- Open Source
Application type
Platforms
- Android
- Android Tablet
- F-Droid
Social & communication PART III - Messaging apps
THERE IS NO OFFICIAL F-DROID REPO FOR THIS APP!! You can download the de-googled version from the CalyxOS repo
The best simple to use and complete encrypted messaging app for everyone (except those who wants anonymity !
Worth mentioning :
Molly An independent fork of 
Signal which let you communicate with Signal users that adds extra-security features. Comes in two flavors like Signal one depending on GoogleMobileServices for notification and one who is independent.Completely different FOSS messaging apps from the official f-droid repo but also worth mentioning :
aTox
Status
Wire Collect some informations and some metadata aren't encrypted !
Telegram FOSS ( CONVERSATIONS AREN'T ENCRYTED BY DEFAULT!!!)Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- iPad
- Flathub
- Ubuntu
- Debian
- Snapcraft
+4
NOT ON THE OFFICIAL REPO ! Threema official F-Droid repo Threema as now a completely FOSS client on f-droid called Threema Libre ! It's a paid (one time payement) service but you don't need to use a phone number to use it, even if it asks for it just skip it. Everything is E2EE and all the servers are located in Switzerland were privacy laws are stronger than the rest of the world. It collect a really small amount of information to make the service function.
Cost / License
- Paid
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- HUAWEI AppGallery
- iPad
- F-Droid
- Flathub
NOT ON THE OFFICIAL REPO ! Session official F-Droid repo
Started as a decentralised
Signal fork, now it's an independent project.
It is more private and does not required your phone number so it can be used anonymously ! It also anonymised the traffic !
It is (yet) not as polished as Signal ! Video and Voice calls are in beta !CAN'T BE USED WITH
Signal USERS !Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- HUAWEI AppGallery
- iPad
- Snapcraft
- Flathub
- F-Droid
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- Flathub
- F-Droid
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Self-Hosted
- Flathub
- F-Droid
- Flatpak
Element is a Matrix-based end-to-end encrypted (E2EE) secure collaboration and messaging app. Developed by the ones behind the Matrix protocol. It provides instant messaging, voice and video calls, screen sharing and file sharing; for 1:1s to huge chat rooms. It’s available to use across Web, Android, iOS, macOS, Windows & Linux. Its decentralised design delivers digital sovereignty, enabling deployment on-premise or through any cloud provider.
Worth mentioning :
SyphonCost / License
- Free Personal
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
- Matrix.org
- Flathub
- F-Droid
- Cloudron
- Snapcraft
+1
A true P2P phone application for voice and video calls. No Internet access needed, no registration, not advertisment or calling back "home". Scan each others QR-Code and call each other. This works in over local networks such as community and company networks or at...
Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- F-Droid
Cost / License
- Free
- Open Source
Application type
Platforms
- Online
- Android
- Android Tablet
- Self-Hosted
- Apple Messages
Social & communication PART IV - Facebook
If you really want to use facebook you should delete the app and use one of theses :
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
The purpose of this application is to get access to Facebook events without an account. Therefore it does not use the Facebook API. Instead it opens the Facebook event URI and downloads the website HTML code. This source should contain the event information in form of structured data. That data is extracted and used to create Android events.
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
Cost / License
- Free
- Open Source
Application types
Platforms
- BSD
- Self-Hosted
- PHP
- Online
- Docker
+3
Manyverse is a social network app using the SSB protocol (Secure Scuttlebutt) where you can write posts and share with friends nearby or over the internet. It's different from mainstream social networks because your data is yours, it lives on your phone, not in the cloud.
Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- iPhone
- F-Droid
- Windows
- Mac
- Linux
Social & communication PART V - Instagram
THIS APP IS DISCONTINUED DUE TO META (FACEBOOK) RESTRICTED POLICY FOR THEIR DATA COLLECTING MONOPOLY ! Having the PWA (Progressive Web Apps) in a sandboxed browser or
Native Alpha could be a better alternative. If you want to use it without any account check Bibliogram Do your own researches !If you just want to see some Instagram content but don't want a Meta (aka Facebook) app to spy on your phone just use barinsta. It's customizable and is more oriented in a detox use of instagram instead of endless scrolling and double-tapping sessions. You can use it without logging in but sometimes Facebook will temporarily bans your IP so sadly it's recommended to be logged in...
PixelDroid is a Free and Open Source Android client for
Pixelfed , the federated image sharing platform.
Browse feeds and profiles, upload new posts, discover posts, interact with others on the fediverse.Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- Android Tablet
- F-Droid
Social & communication PART VI - Reddit
The OG FOSS Reddit client Feature rich and privacy friendly
Worth mentioning :
RedReaderCost / License
- Free
- Open Source
Application type
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
My personnal favorite reddit client. Beautiful UI, privacy-friendly, No-ads and quite feature rich
Worth mentioning :
Dawn for Reddit
Stealth The most beautiful client IMO. The app doesn't even let you log in with a Reddit account.Cost / License
- Freemium
- Open Source
Application types
Platforms
- Android
- Android Tablet
A mobile client for
Lemmy the open source federated 
Reddit alternative.Worth mentioning :
Jerboa for Lemmy
Social & communication PART VII - Twitter
Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- F-Droid
Cost / License
- Free
- Open Source
Application types
Platforms
- Online
- Self-Hosted
A free, open-source
X and Nitter client for Android with better privacy. Accountless !
A fast client for twitter without tracking (trakers), you can still connect to your account. Almost all functions of the twitter app.
Cost / License
- Free
- Open Source
Platforms
- Android
Cost / License
- Free
- Open Source
Application types
Platforms
- Android
- Android Tablet
- F-Droid
NOT ON THE OFFICIAL REPO ! IzzyOnDroid repo
The official mastodon client. A federated alternative to Twitter !
Worth mentioning :
Tusky The most
Husky based on Tusky
Fedilab Also a client for Mastodon and other federated social networkCost / License
- Free
- Open Source
Application types
Platforms
- Online
- Android
- iPhone
- iPad
- Self-Hosted
- F-Droid
- Cloudron
- Android Tablet
+6
Social & communication PART VIII - Dating apps
Cost / License
- Free
- Open Source
Application types
Platforms
- Online
- Android
- F-Droid
Health PART I - Diets
It replaces the handwritten diary and helps the user to quickly and easily record, evaluate and export his blood sugar and other important data as PDF or CSV. Thanks to the clearly arranged interface, the user always has an overview of his diabetes. The app also provides information on several thousand foods including carbohydrates and other nutrients.
Cost / License
- Free
- Open Source
Platforms
- Android
- Android Tablet
Sobriety is simple and minimal app to track how long you've been sober from anything you want.
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
Can I Drive allows you to track your recent alcohol consumption, to assess if you can drive or not.
Cost / License
- Free
- Open Source
Platforms
- Android
- F-Droid
Cost / License
- Free
- Open Source
Platforms
- Android
Health PART II - Sport
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