QSO Again is an Android app for amateur radio (ham radio) enthusiasts to
record radio conversations (QSOs). The app runs in the background and
stores recordings locally on the device.

Features:

* Background recording via microphone
* Save recordings to the Downloads folder
* Audio quality settings (sample rate, bit depth)
* Audio loop: continuous recording in RAM (no temporary disk storage;
  size depends on available RAM)
* Quick jump-back: use a button or the progress bar to jump back a few
  seconds and replay important passages
* Multilingual: German, English, Spanish, French
