PixiTracker 1Bit is free on Google Play

PixiTracker 1Bit is an Android music-making app built around the tracker style, where you arrange sounds into patterns to build songs. As the name suggests, it focuses on a 1-bit sound, the raw and buzzy tone of very early computer and handheld music. It normally costs $2.99 and is free for a limited time.

It suits chiptune fans, hobby musicians who want to sketch ideas on their phone, and anyone curious about retro-style sound. You don't need a studio setup, just an Android device.

No end date has been given, so claim it soon. Once you get it at the free price, it stays tied to your Google account, and you can reinstall it later without paying, even after the deal ends.