KR8 vs Rifflet

KR8-0 is a drum machine for live performance. It runs a step sequencer with 16 to 64 steps, four drum kits, per-channel mute and solo, per-channel volume, and a BPM range of 40 to 220. The audio engine runs on a dedicated thread separate from the UI, so the tempo holds regardless of what's happening on screen. Four kits are included. The default kit is synthesis-based: each sound is generated from mathematical waveforms and envelopes computed in real time, with no sample files involved. The three additional kits are sample-based, using recorded drum sounds loaded from audio files on the device. No internet connection is used at any point. No account is required. No data leaves the device.

Rifflet turns a short music idea into a playable lesson. Type a prompt, generate a local sound, pick Piano, Guitar, or Ukulele, follow the notes as keys or tab, hear local instrument playback, and save or share the riff card. The app is intentionally simple: local audio generation, coach tips, saved riff ideas, piano playback, and guided practice views. It does not require an account, network login, or cloud AI key.