MIDI MACHINE vs Wavepocket
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDI MACHINE
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MIDI MACHINE is a fast, playful performance tool built for generating MIDI melodies on the fly. At the heart of MIDI MACHINE are two creative states: SPARK and STRUCTURE. SPARK mode is all about discovery—rapidly generating fresh melodic ideas and happy accidents. 17 randomized melodic rows drawn from an vast internal library, everything is locked to your chosen key. Each melody is sliced into 10 playable parts, letting you remix and reshape ideas in real time without ever hitting a creative wall. STRUCTURE mode lets you compose and perform with intention and move seamlessly between key pairs to trigger chords. Additionally, genre-based chord-progression suggestions form a real progression from a selected genre, so you can play a coherent sequence. This mode is designed to serve users with and without knowledge of music theory. "Super inspiring tool for sketching melodies quickly, whether you’re in the studio or on the move with a minimal setup. You just start playing around and happy accidents happen." — early user feedback Core Features * 17 MIDI melody rows per set, automatically harmonized to your chosen key * Each melody split into 10 playable tiles for real-time triggering of your favorite sounds * SPARK mode for instant idea generation and exploration * STRUCTURE mode for fixed chords mapped across key pairs, built in arpeggiator and chord group suggestions * Keep randomizing to generate endless new melodic combinations while keeping your settings * SAVE and recall full sets, including patterns, tempo, and performance modes (SPARK) * Note mode: trigger melodic sequences step-by-step * Chord mode: play full harmonies instantly * Loop ON / OFF: continuously cycle note sequences * Hold OFF: slide across tiles for fluid, continuous runs * Hold ON: trigger full sequences with a single tap * Repeat ON / OFF: retrigger tiles rhythmically (1/4 to 1/64) for pattern creation * Fixed velocity option for consistent dynamics * Edit individual tile MIDI sequences * Reverse entire rows * Octave shift up or down * Double or halve playback speed (Note mode) (STRUCTURE) * Group: Genre-based chord-progression suggestions. Highlights/labels tiles on the grid that form a real progression from the selected genre. * Arp: Turns a held chord into a rolling sequence of individual notes. • Style – 16 note-order patterns (Up, Down, Converge, Pinky Up, Random, etc.). • Rate – Speed of each note: 1/4 to 1/64, relative to BPM. • Groove – Straight (default) or Swing 8/16/32 for a more human rhythmic feel. * Hold OFF: slide across tiles for fluid, continuous runs * Hold ON: trigger full sequences with a single tap * Add automatic Bass Note to each chord * Repeat ON / OFF: retrigger tiles rhythmically (1/4 to 1/64) for pattern creation * Fixed velocity option for consistent dynamics Performance Controls * Global pitch shift in semitones for instant transposition of the entire set * Adjustable BPM with tap tempo and fine control * Flexible visible row count (5–17) for compact or expanded layouts * Scrollable row view with FIRST ROW selection MIDI MACHINE is built for musicians who want a different approach to creating ideas—fast, intuitive, and a little unpredictable. Whether you're sketching melodies or experimenting with generative patterns, it keeps everything playful, unique, and fun."
Wavepocket
This pocket studio app combines a synthesizer, drum kit, sampler, and 4-track tape recorder for music creation on your device. It offers multi-touch controls, various sound engines, and a clip-based timeline for easy track arrangement. All your creations are saved locally, and the app works completely offline.
- Synthesizer with multiple sound engines
- 8-pad drum kit with adjustable parameters
- Sampler with chromatic playback and slicing
- 4-track tape recorder with clip timeline
- Versioned tweaks with undo/redo
- Offline functionality
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Wavepocket is a pocket studio: a synthesizer, drum kit, sampler and 4-track tape recorder that fit in your hand. Play it with your fingers: multi-touch chords, glissando slides across the keys, drum pads, and four color-coded encoders that always control what you're looking at. MAKE A SOUND: Analog (saw–square with sub), FM, and Cluster Engines • A sampler engine: play any recording chromatically across the keys • Slice samples on the waveform, name each slice, and flip between them • ADSR envelope, resonant filter, env→cutoff, LFO • Presets by category (bass, keys, strings, brass, lead, pad, pluck, bell). MAKE A BEAT: Synthesized 8-pad drum kit: kick, snare, hats, clap, tom, rim, bell • Kit-wide tune, decay, tone and level • Arpeggiator (up / down / up-down / random) and metronome MAKE A TRACK: 4-track tape with a clip timeline: record in any mode, then drag clips between lanes, trim their edges, and cut at the playhead • Everything shares one loop boundary, so your layers always line up • Mixer with per-track level, pan and mute • Filtered delay and spring-style reverb sends. KEEP EVERYTHING: Every tweak is versioned: undo, redo, or scrub the timeline of your session and annotate the versions worth keeping • Recordings and imports persist on your device between sessions • Save the whole project with settings, history, presets and audio as a single file, and render your mix to MP3 NO STRINGS: No account, no ads, no tracking • Works completely offline • Nothing leaves your device
Screenshots
Verdict
The clearest difference is in-app purchases: Wavepocket at none against MIDI MACHINE's 1. Wavepocket also leads on iOS requirement (16.4 vs 18.6). On price, ads and device support 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
Both are free to download. MIDI MACHINE sells 1 one-off in-app purchase. Wavepocket asks for nothing beyond the download.
| Parameter | MIDI MACHINE | Wavepocket |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 52 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Niklas Koellner | MATTHEW RYAN SANDY |
In-app purchases
MIDI MACHINE
- MIDI MACHINE Pro$4.99
Wavepocket
No in-app purchases








