KeePassDX is an open-source password manager for Android. It allows you to securely store and manage your passwords in a single encrypted file.

With KeePassDX, you can edit encrypted keys and digital identities, fill out forms securely, and ensure your data remains private.

The app is compatible with other KeePass products and offers a high level of security and interoperability.

Share files to nearby devices.
Free, open-source, cross-platform.

Project page: https://github.com/localsend/localsend

calibre is a powerful and easy to use e-book manager.

Users say it’s outstanding and a must-have. It’ll allow you to do nearly everything and it takes things a step beyond normal e-book software. It’s also completely free and open source and great for both casual users and computer experts.

• Save time on managing your e-book collection
• Use it everywhere and with anything
• Comprehensive e-book viewer
• Download news/magazines from the web
• Share and backup your library easily
• Edit the books in your collection
• Satisfy every e-book need and get support

A New Kind of Instant Messaging
Whether it's corporations or governments, digital surveillance today is widespread.

Tox is easy-to-use software that connects you with friends and family without anyone else listening in.

While other big-name services require you to pay for features, Tox is completely free and comes without advertising — forever.

Share, freely and privately
Jami is a free/libre, end-to-end encrypted, and private communication software.

Features

• Fast
  Latency is reduced and transfer speeds are greatly increased thanks to the direct peer-to-peer connection.

• Autonomous
  Users who are on the same local network can communicate with Jami even if they are disconnected from the internet.

• No personal information needs to be provided when creating an account.

• Free
  As in free beer AND as in freedom.

• Unlimited
  Without restriction on file size, speed, bandwidth, features, number of accounts, storage or anything else.

• Private
  All communications are peer-to-peer and end-to-end encrypted.

• Ad Free
  There will never be advertising on Jami.

Quit Big Tech. Never look back.
Whether it's for an organization, a community, or a group chat with friends, Quiet lets you control all your data without running your own servers.

While apps like Slack, Discord, and Signal use central servers, Quiet syncs messages directly between a team’s devices, over Tor, with no server required.

Quiet is in beta and shouldn't be used for activities requiring security.

An opensource calendar for Android to de-google yourself from Google Calendar.

Obsidian is the private and flexible writing app that adapts to the way you think. There are hundreds of different plugins and themes to fit your way of thinking.

While the software is free for non-commercial use, using the sync feature across multiple devices is not free, but helps fund the development of the software.

K-9 Mail is an open source email client that works with basically every email provider.

PhotoScan is a scanner app from Google Photos that lets you scan and save your favourite printed photos using your phone’s camera.

Open-source, cross-platform, software that helps you organize your finances and keep track of where, when and to who the money goes. It is also a great tool to get a bird's eye view of your financial worth

MoneyManager Ex has all the features you would expect in a finance management application

Syncthing is a continuous file synchronization program. It synchronizes files between two or more computers in real time, safely protected from prying eyes.

Your data is your data alone and you deserve to choose where it is stored, whether it is shared with some third party, and how it’s transmitted over the internet.

Retroshare establish encrypted connections between you and your friends to create a network of computers, and provides various distributed services on top of it: forums, channels, chat, mail..

Retroshare is fully decentralized, and designed to provide maximum security and anonymity to its users beyond direct friends. Retroshare is entirely free and open-source software. It is available on Android, Linux, MacOS and Windows.

There are no hidden costs, no ads and no terms of service.

εxodus analyses Android applications. It looks for embedded trackers and lists them.

A tracker is a piece of software meant to collect data about you or what you do.

In a way, εxodus reports are a way of knowing what really are the ingredients of the cake you are eating. εxodus does not decompile applications, its analysis technique is entirely legal.

The εxodus website lets you:

• check an Android application report using the search engine
• analyse a new Android application by requesting analysis
• go further, providing a list of tools and things you can do to improve your privacy on your smartphone

OpenTodoList is a todo list and note taking application.

Organize todo lists, notes and images in libraries, which can be stored either completely local on the device you are working on (and hence ensure no information leaks out to untrusted third parties) or use the built in synchronization features which allows you to synchronize your libraries across devices. Currently, the following backend servers are supported for synchronization:

NextCloud
ownCloud

Generic WebDAV servers - note that due to limitations of some servers, the sync might not be working optimally or at all, this is a limitation of the server that the app cannot do anything about. Feel free to raise an issue in case you think your server is still capable to run a sync properly
Dropbox

In addition, a library is just a directory holding the items of your library as simple files - this allows you to use any kind of third party synchronization tool (like DropBox) to sync your information.

In comparison to popular messaging applications like Telegram, WhatsApp and Signal, Speek is by far the most secure way to converse. Speek is serverless, stores no metadata, requires no ID or phone number and all the messages are encrypted and routed via the Tor network.

All messages are end-to-end encrypted. The Speek client is creating a Tor hidden service on the client PC. The message is then routed via the Tor onion network to the receiver. This makes it possible that the IP addresses are never public and the users can stay anonymous. The users are identified with public keys. Each user can share their public key with others to add them to the contacts list.

The Invisible Internet Project (I2P) is a fully encrypted private network layer. It protects your activity and location. Every day people use the network to connect with people without worry of being tracked or their data being collected

I2P hides the server from the user and the user from the server. All I2P traffic is internal to the I2P network. Traffic inside I2P does not interact with the Internet directly. It is a layer on top of the Internet. It uses encrypted unidirectional tunnels between you and your peers. No one can see where traffic is coming from, where it is going, or what the contents are. Additionally I2P offers resistance to pattern recognition and blocking by censors. Because the network relies on peers to route traffic, location blocking is also reduced.

Tor Browser for Android is the only official mobile browser supported by the Tor Project, developers of the world’s strongest tool for privacy and freedom online.

Orbot is a free VPN and proxy app that empowers other apps to use the internet more securely.

Orbot uses Tor to encrypt your Internet traffic and then hides it by bouncing through a series of computers around the world.

Tor is free software and an open network that helps you defend against a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security known as traffic analysis.

Kodi is an open-source home theater software that brings your media to life with a beautiful interface and a wide range of features. Here’s what you need to know:

• Media Playback: Kodi allows you to play and view most videos, music, podcasts, and other digital media files from local storage, network shares, and the internet

• Customization and Add-ons:
  Add-ons: Kodi has a vast catalog of community add-ons that let you customize and enhance your entertainment setup. These add-ons cover everything from streaming services to utilities and themes.

• Skins: You can change the look of Kodi by applying different skins.

• Internet Radio: Stream your favorite internet radio stations and control them via your web browser or mobile phone.

• Media Organization:

• Movies: Kodi brings your movie collection to life with artwork, cast information, genres, and more.

• TV Shows: Organize your TV shows for binge-watching or catching up on episodes.

• Music: Enjoy your music collection with support for various formats, playlists, and party mixes.

• Photos: Share your photos on the big screen with a personal slideshow.

• Live TV and Recording:

• PVR (Personal Video Recorder): Watch and record live TV using an easy-to-use interface. Kodi works with popular backends like MediaPortal, MythTV, and Tvheadend.

• Gaming:
  Kodi isn’t just for passive media consumption. You can play games using a variety of emulators and even use game controllers.

• Platform Compatibility:
  Kodi runs on multiple operating systems and hardware platforms, including Windows, Linux, Android, Raspberry Pi, macOS, iOS, and more.