Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

An alternative frontend for YouTube, for Android.

Lightweight vault and password manager for Android, KeePassDX allows editing encrypted data in a single file in KeePass format and fill in the forms in a secure way.

🖼️ Image Toolbox is a powerful app for advanced image manipulation. It offers dozens of features, from basic tools like crop and draw to filters, OCR, and a wide range of image processing options

An F-Droid client with modern UI and an arsenal of extra features.

Privacy focused translator app built with MD3

Showly 2.0 is modern, slick, open-sourced Android TV Shows Tracker.

GPL licenced Android Expense Tracking App

Block unknown callers

画 - Japanese OCR Dictionary

Olauncher CF. Simple and Clutter-Free Android launcher