ActivityWatch is an app that automatically tracks how you spend time on your devices.

It is open source, privacy-first, cross-platform, and a great alternative to services like RescueTime, ManicTime, and WakaTime.

It can be used to keep track of your productivity, time spent on different projects, bad screen habits, or just to understand how you spend your time.

Rethink DNS + Firewall is the easiest way to monitor app activity, circumvent Internet censorship, block ads and trackers on your Android device.

Android Firewall
Prevent apps from connecting to the Internet. A firewall can block any app connecting to the Internet over Wi-Fi or Mobile data. Since most forms of surveillance require the data to be sent over the network to a server, firewalling them effectively mitigates that threat (File Managers, Alarm Clock, Calculator are few such examples of apps that do not require any Internet access to function).

Content Blocking
Block ads, trackers, malware, and more. Messaging apps, for instance, can't be firewalled altogether, but can be, instead, blocked from accessing certain server endpoints of known ad-networks and trackers.

Anti-Censorship
Circumvent the most common way the Internet is censored. The app encrypts your requests sent to Domain Name System (DNS) resolver run by us with presence in 200+ locations worldwide. DNS resolvers are the address book of the Internet

Monitoring
Keep tabs on incoming and outgoing Internet traffic. The Rethink DNS + Firewall for Android keeps a log of connections every app makes and tracks its data use. Automated reports flag previously unknown or suspicious connections, and reveal the extent of surveillance.

SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls.

Unlike other messaging networks, SimpleX has no identifiers assigned to the users. It does not rely on phone numbers, domain-based addresses (like email or XMPP), usernames, public keys or even random numbers to identify its users — SimpleX server operators don't know how many people use their servers.

To deliver messages SimpleX uses pairwise anonymous addresses of unidirectional message queues, separate for received and sent messages, usually via different servers.

This design protects the privacy of who you are communicating with, hiding it from SimpleX network servers and from any observers. To hide your IP address from the servers, you can connect to SimpleX servers via Tor.

Optimize your WiFi network using WiFi Analyzer (open-source) by examining surrounding WiFi networks, measuring their signal strength as well as identifying crowded channels.

Users' privacy and security is a huge concern these days and WiFi Analyzer (open-source) is designed to use as few permissions as possible. It asks for just enough to perform the analysis. Plus, it is all open source so nothing is hidden! Most notably, this application does not require access to internet, so you can be sure it does not send any personal/device information to any other source

Create good habits and track their progress over time.

Loop helps you create and maintain good habits, allowing you to achieve your long-term goals. Detailed charts and statistics show you how your habits improved over time. The app is completely ad-free, open source and it respects your privacy.

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.

Jellyfin is the volunteer-built media solution that puts you in control of your media. Stream to any device from your own server, with no strings attached. Your media, your server, your way.

With a large array of official and third-party clients, Jellyfin is available on most popular platforms. Your media is ready to follow you, wherever you go.

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