Master Password is not another password manager. This app will replace all your passwords with new strong passwords generated from your new master password; passwords are stored nowhere and need no sync, cloud or backups. This app will securely generate strong and unique passwords for any purpose, in a way that nobody can log or trace. Better yet, even if you somehow lose everything, you can effortlessly recreate all your passwords.
bitwarden is 100% open source software. The source code for bitwarden is hosted on GitHub and everyone is free to review, audit, and contribute to the bitwarden codebase.
AIMSICD is an Android app to detect IMSI-Catchers. These devices are false mobile towers (base stations) acting between the target mobile phone(s) and the real towers of service providers. As such they are considered a Man-In-The-Middle (MITM) attack. This surveillance technology is also known as "StingRay", "Cellular Interception" and alike.
OpenKeychain helps you communicate more privately and securely. It uses encryption to ensure that your messages can be read only by the people you send them to, others can send you messages that only you can read, and these messages can be digitally signed so the people getting them are sure who sent them. OpenKeychain is based on the well established OpenPGP standard making encryption compatible across your devices and systems.
FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols. Tokens can be added easily by scanning a QR code. FreeOTP implements open standards: HOTP and TOTP. This means that no proprietary server-side component is necessary: use any server-side component that implements these standards. We recommend FreeIPA.
Android Terminal Emulator is a terminal emulator for communicating with the built-in Android shell. It emulates a reasonably large subset of Digital Equipment Corporation VT-100 terminal codes, so that programs like "vi", "Emacs" and "NetHack" will display properly.
Termux is a terminal emulator and Linux environment bringing powerful terminal access to Android.
Feel free to add cool open source Android apps which would be missing from this list or to correct any mistake you could spot on this GitHub repo.
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