Step sequencer. Four drum kits.
Up to 64 steps. Completely offline.
No account. No tracking. No internet.
The audio engine runs on a dedicated thread via DispatchSourceTimer. UI interactions including scrolling, gestures, and layout cannot affect the clock. The tempo holds.
Set your pattern length to 16, 32, 48, or 64 steps. Navigate between pages of 16 with the page buttons while playback continues uninterrupted.
Every channel has independent mute and solo controls. Solo multiple channels simultaneously. Rearrange your mix in real time without stopping the sequencer.
One synthesis-based kit — sounds generated from mathematical waveforms on-device. Three sample-based kits using recorded drums loaded from audio files.
Independent volume control on every channel. Dial in your mix before you perform and leave it there. Sliders update in real time without interrupting the sequence.
Tap any channel label to fire that sound immediately regardless of sequencer state. Useful for checking a kit before committing to it mid-session.
Full tempo range with nudge buttons for single-step adjustments and a slider for coarse changes. BPM updates reschedule the timer without stopping playback.
Generates a probability-weighted random pattern across all channels. Biased toward musically useful placements — kick on 1 and 3, hat on the offbeats.
No network calls at any point. No analytics SDK, no crash reporter, no remote config. The app functions identically with no internet connection.
Switch kits live during playback. Sample-based kits fall back to the synthesis engine if an audio file is not found.
KR8-0 makes no network requests. No analytics, no crash reporters, no telemetry. It does not know if you have internet access and does not try to find out.
No sign-in, no Apple ID, no email address. Open the app and use it. Nothing is collected and there is no server to collect it on.
No ad SDKs, no usage tracking, no session recording. KR8-0 does not know how often you use it, what patterns you make, or what kit you prefer.
AVAILABLE ON THE APP STORE · BY KEOIS