It's about time-o! Scratch any chop like vinyl! Hold a pad, drop a second finger - it goes beooouum, then erro er ar awo wah. also poly mode! monog are still welcome!
Record into your mic. Chop it to pads. Play it like an instrument. Now scratch them like vinyl and play in chord progressions.
Choppa is a lightning-fast audio sampler and slicing tool built for songwriters, beatmakers, and live performers. Record through your mic and instantly map audio across playable trigger pads. Auto-chop on transient or pitch detection — switch between 4 / 8 / 16 pad layouts without losing any of their per-chop settings.
PERFORMANCE GESTURES
Tap to trigger. Hold to sustain. Drag a single finger up and down on a pad to slide pitch in real time — ±2 octaves without lifting.
Drop a second finger anywhere on the screen and any held chop slows like a record being touched. Move the second finger and you scratch in either direction. Lift to release the platter — a force-based exponential inertia model (modeled on real turntable physics, not a linear fade) ramps back to nominal speed. Spread your fingers wider and the scratch responds more gently — a "grip pressure" metaphor borrowed from real decks.
The chop view and minimap both work as scrub surfaces. The minimap ignores chop boundaries entirely — drag freely across the whole loop as one continuous tape.
CHORD PLAY
PERF mode has two flavours: SCRATCH for turntable gestures and CNFG for chord play. CNFG's MONO/POLY toggle controls whether each pad press chokes the previous (one voice at a time) or lets multiple voices stack while held — piano-key hold-to-play for chord progressions, sustained harmonies, and layered counter-melodies.
CHOPPING
Auto-chop detects transients or pitch boundaries automatically when you record or import a sample, with sensitivity knobs for each. Drag chop edges manually, set per-section pitch and gain, enable reverse, and pick between off / forward loop / ping-pong on any chop. Three pad-count layers (4 / 8 / 16) are fully independent — switch between them and all per-chop settings stay intact.
INPUT SOURCES
Pick what feeds Choppa: any mic capsule (front / back / bottom / USB / AirPods), the two royalty-free streams that ship with the app, or any HTTPS audio URL you paste in. Record from any of them.
RECORD MODE
A dedicated REC mode for capture work, with an ARM safety pin — destructive full re-record requires a deliberate ARM tap so a stray REC press can't write over a take. Punch-in records into a single chop's region only, with single-level undo — perfect for fixing a flubbed beat without losing the rest.
WIRELESS TO YOUR DAW
Ableton Link Audio — Choppa's master mix appears as a track-input source in Live, Loopy Pro, AUM, GarageBand iOS, and any Link 4 peer on the same Wi-Fi. Tempo syncs at the same time. No USB cable, no virtual audio device.
PLUGIN INSIDE YOUR DAW
Full AUv3 plugin support — load Choppa inside GarageBand, Logic Pro for iPad, AUM, Loopy Pro, or any Audio Unit host as either an Instrument (play chops via host MIDI) or an FX (capture the host's audio for chopping). MIDI mappings persist per host.
LIBRARY + SHARE
Every recording auto-saves into an App Group library shared between Choppa standalone and the AUv3 plugin — record a sample on your phone, load it in your DAW the next time you open it. Share to Choppa from any other app and pick which bank receives the sample, plus the chop count, before it lands.
EXPORT
Export source WAV, individual chops, .choppa single-bank presets, or full .choppap multi-bank projects. Import from other Choppa users or any audio file.
Built by WaveLoop. Get off the grid.
Ratings & Reviews
4.7
out of 5
3 Ratings
Scratch any chop. Play chord progressions.
Turntable scratch on every chop. Hold a pad, drop a second finger anywhere on the screen — Choppa slows like a record being touched, follows your finger motion as scratch velocity, and ramps back to nominal when you lift. The decay is force-based exponential, modeled on real platter inertia (not a time-based linear fade), so direction-on-release reads naturally. Scratch also works on the chop view (single-finger scrub-from-position) and across the whole minimap as one continuous turntable surface — drag past chop boundaries freely.
PERF / SCRATCH and PERF / CNFG. New MODE pill in the toolbar (REC / PERF) and a PERF sub-mode toggle. PERF/SCRATCH is the turntable; PERF/CNFG is chop configuration + a new poly play mode.
POLY chord play. In PERF/CNFG, the left toolbar slot toggles MONO ⇄ POLY. POLY plays each voice only while its pad is held — piano-key behavior — and lets you stack multiple voices simultaneously for chord and counter-melody play. MONO chokes prior voices on every trigger (one voice at a time, last-press-wins).
REC ARM safety. Full re-record is destructive by design (no undo). New ARM button in REC mode's left slot — tap to arm, then tap REC. The REC button is dim and inert until armed; tapping it while disarmed pulses ARM to teach the safety. Auto-disarms on mode switch and after every take. Punch-in (single-chop overwrite, which is undoable) doesn't need ARM.
Share-to-Choppa picks the bank + chop count. Sharing audio to Choppa from another app now opens a bank picker — 4-bank vertical list, each with a mini waveform preview — plus a 4/8/16 chop-count selector with live preview of how the incoming file will divide. Pick a bank, pick a count, the sample lands there at that density. Replaces the previous behavior of silently stomping whichever bank was active.
AUv3 scratch toggle. Single icon button beside the import (+) in the plugin host UI. Flips the chop view + minimap into scratch mode so the turntable gesture works inside AUM, Loopy Pro, GarageBand, and any AU host.
Fresh full re-record = NEW bank. Long-press REC for a brand-new take and the bank gets a new random colour, per-chop controls (pitch / reverse / loop / gain) reset to defaults — clean slate, visually distinct. Punch-in (per-chop overwrite) keeps all bank state.
Auto-chop stays put across launches. Chop layouts saved with your sample no longer get re-chopped on every app open — auto-chop runs only on truly fresh audio (new recordings, freshly imported files). Restored sessions, library entries, and .choppa imports keep exactly the boundaries you saved.
Quality of life.
Monitor settings persist across launches (no more feedback ambush when demoing).
GAIN readout in the chop info overlay shows MUTE in red when a chop's gain drops below audibility.
RESET AUDIO in Settings rebuilds the audio engine without an app restart, for recovery from rare audio-service drops.
Library long-press surfaces the share menu (entry-level share moved out of the toolbar).
IMPORT moved into the library drawer header.
Version 1.5.0
The developer, Elijah Lucian, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Elijah Lucian
Size
6 MB
Category
Music
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
iPad Requires iPadOS 17.0 or later.
Mac Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.