Lattice vs Choppa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lattice
Generate dynamic drum patterns with this MIDI instrument. Explore and capture ideas, create variations, and arrange them into evolving grooves. Ideal for live performance and music production workflows.
- XY pad and intensity controls for pattern shaping
- Capture eight patterns and two fills
- Edit step strength and hat types
- Build evolving patterns with chained banks
- Per-lane MIDI routing and retrigger options
- Deterministic output for reliable recall
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Lattice is a drum-pattern MIDI instrument for iOS and iPadOS that generates grooves live in your host. It works both as a standalone app and as an AUv3 plugin. Lattice helps you find strong drum ideas quickly: * Explore: shape patterns with an XY pad and intensity controls * Populate Banks: capture eight patterns plus two fills from the generator * Variations: edit strength per step (Off/Normal/Hard) and toggle hats between CH/OH * Arrange: build chains from your captured banks for evolving patterns * MIDI Routing: set per-lane note + channel, use routing templates, and enable Force Retrigger for tricky MIDI chains * Deterministic output: the same controls produce the same results, so you can reliably recall what you liked * Lattice is designed for performance workflows: changes apply at bar boundaries, playback can follow the active tab, and you can pin the top bar to lock playback to Live, a specific Pattern slot, or Chain. AUv3 MIDI Effect - Works in AUv3 hosts such as AUM, Drambo, Logic, and Cubasis - MIDI-only design compatible with any synth or sampler
Choppa
Record audio, chop it into playable pads, and manipulate it like an instrument. This app offers advanced features like vinyl scratching, chord progressions, and wireless DAW integration for musicians and producers.
- Record and chop audio to pads
- Vinyl scratching and pitch bending
- Chord progressions and layered harmonies
- Auto-chop by transient or pitch
- Wireless DAW integration (Ableton Link)
- AUv3 plugin support
- Multiple input sources
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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.
Screenshots
Verdict
The clearest difference is rating: Lattice at 4.9 against Choppa's 4.3. Lattice also leads on review sentiment (100% vs 67%). Choppa's advantage is chart position (#189 vs unranked). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Lattice costs $4.99 and Choppa $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Lattice holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews point the same way: 100% of Lattice's written reviews are positive against 67% of Choppa's.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.
| Parameter | Lattice | Choppa |
|---|---|---|
| Price | $4.99 | $4.99 |
| Rating | 4.9 (8 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 8 — better | 6 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #189 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Joe Topjian | Elijah Lucian |
Customer experience
Lattice
Choppa
In-app purchases
Lattice
No in-app purchases
Choppa
No in-app purchases







