LooPeR by FanStaF
A pedal-style looper for Android. Built for musicians.
LooPeR is a low-latency Android looper inspired by classic single-button stompbox loopers like the Boss RC and TC Ditto. Tap to record, tap to play, tap to overdub — long-press to undo. No setup required, no menus to fight through. Under the hood it runs a native Oboe/AAudio engine in exclusive-mode where the device supports it, with per-device latency calibration so your overdubs land where they should. Plug in a USB audio interface and play guitar straight into your phone, or use the built-in mic for vocals and percussion. When you want more than just freeform looping, switch to structured mode: set a tempo, time signature (odd meters welcome), and count-in, and every take snaps to the bar. Completely offline. No accounts, no ads, no tracking — your loops stay on your device.
Features
LooPeR
One big pedal-style button — tap to record, tap to play, tap to overdub Undo / redo your last overdub (long-press) — Ditto-style Auto-start on sound, auto-stop on silence, with trailing-silence trim Seamless loop boundary (automatic crossfade) Save loops as standard WAV; auto-restore on reopen
Free mode vs. Structured mode
Free: record any length up to 90 seconds, no click Structured: set BPM, time signature (4/4, 3/4, 7/8, 5/16, etc.) and count-in — recordings snap to the bar Built-in metronome with 8 click sounds and a separate accent on beat 1
Audio Engine
Native Oboe / AAudio engine, exclusive-mode where available, with shared-mode and OpenSL ES fallback Per-device-pair latency calibration (0–200ms, ear-calibrate by tap) Real-time input and output level meters with pro dB scaling
Hardware support
USB Audio Class interfaces — plug your guitar interface straight in Bluetooth audio (SCO / A2DP) with auto-routing Hot-swap recovery when you unplug or change devices mid-session Optional mic monitoring (off by default to prevent feedback)
More Information
Become a beta tester
BETASending Mode is now in beta. Want to try it — and other new LooPeR by FanStaF features — before they're released? Sign up and we'll send you an invite.