Strange Loop vs PNEUMATIC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strange Loop
This app generates unique, non-repeating music using chaos theory and AI. Users can influence the composition by painting on mathematical attractors and mood pads, choosing from various scales, accompaniment styles, and synthesized sounds. It also functions as an AUv3 instrument and MIDI processor.
- AI-generated, non-repeating music
- Interactive painting on attractors and mood pads
- 26 scales and 7 accompaniment styles
- Sampled grand piano and synthesized voices
- AUv3 instrument and MIDI processor
- MIDI file export
- Real-time visual scopes
Read full descriptionHide full description
Strange Loop writes its own music. Three coupled Lorenz attractors drive the piece — one proposes pitch, one shapes rhythm, one wanders the emotional plane. A Markov policy then decides what actually plays, learning from its own output and rewarding intervals that sound consonant. Chaos proposes, the policy disposes. Slide BLEND to choose who wins. Nothing is pre-recorded and nothing loops. Every run is new. PAINT ON THE MATHS Both scopes are paintable. Draw on the attractor and the trajectory bends toward what you drew and lingers there, pulling the melody into those pitches. Draw on the mood pad and the feeling follows your strokes — brightening the harmony, lifting the register, pushing the tempo. Set how hard the ink leans, how big the brush is, and how long it lasts before it fades. WHAT YOU GET • 26 scales — major and minor modes, pentatonics, blues, whole tone, harmonic and melodic minor, altered, both octatonics, and folk scales from Japan, China, Egypt, Spain, Arabia and Hungary • 7 accompaniment styles — chaos grooves, jazz comping with walking bass, stride piano, Alberti bass, classical, arpeggios, ambient rolls • A sampled grand piano plus synthesised voices: soft piano, glass, strings, FM bell, AM organ, pluck, fat saw and more • 6 moods on a valence/arousal plane, from serene to tense, driving chord quality, register, tempo and note length • Live scopes — the attractors, the note-probability distribution the engine is sampling from, and the mood point, all drawn in real time • Deep control: key, scale, tempo, chaos rho, rhythm spread, grace notes, chord-tone pull, softmax temperature, per-track mixer • Record a take and export it as a standard MIDI file to the Files app — melody, chords and bass on separate tracks TWO AUDIO UNITS Strange Loop ships as an instrument AUv3 and as a MIDI processor AUv3, so it can either play its own sounds or sequence any other instrument in your host. Melody, chords and bass each send on their own MIDI channel, so one instance can drive three different instruments. Both Audio Units follow your host's transport and tempo — hit play in AUM, GarageBand, Logic, Cubasis or Zenbeats and it locks to the grid. One install registers both. CREDITS Sampled piano: Salamander Grand Piano by Alexander Holm (CC BY 3.0).
PNEUMATIC
This app simulates a unique valve pressure synthesizer, allowing users to control pressure, tune resonance, and add buzzing whistles. It can be played directly on screen or with a MIDI keyboard, offering a distinctive soundscape.
- Pressure control
- Resonant tuning
- Buzzing whistle effect
- MIDI keyboard support
- Save and load presets
- AUv3 instrument
Read full descriptionHide full description
PNEUMATIC is a valve pressure synth from NOIDED Industries. Push the lever and pressure builds in the tank. The pipe starts to whistle, the leak screams higher and the gauge climbs. Let go and it slams back, bleeding off into silence. Push it all the way across and it latches for a sustained drone. PRESSURE sets how hard the tank fills. PIPE tunes the resonant noise. LEAK adds a buzzing whistle that rises with the pressure. BLEED decides how fast it all drains away. No extra hardware needed. Everything is played on screen. If you want, any standard MIDI keyboard or MIDI app can also play it, with every note transposing the whole machine. Play it from a MIDI keyboard and every note transposes the whole machine. Velocity and aftertouch push the lever for you. Standalone app and AUv3 instrument Full MIDI CC control of every parameter Optional MIDI keyboard support (velocity, aftertouch, mod wheel)Keyboard, velocity, aftertouch and mod wheel control Save and load your own presets Works in AUM, GarageBand, Cubasis and other AUv3 hosts Made in Rochdale, UI elements photographed from local industrial areas. STAY NOIDED.
Screenshots
Verdict
The clearest difference is in-app purchases: PNEUMATIC at none against Strange Loop's 1. On price, rating, review sentiment and ratings volume 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. Strange Loop sells 1 one-off in-app purchase. PNEUMATIC asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Strange Loop against 5.0 for PNEUMATIC. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | Strange Loop | PNEUMATIC |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 23 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Soft Brew Mobile | Anthony Moran |
Customer experience
Strange Loop
PNEUMATIC
In-app purchases
Strange Loop
- Unlock AUV3 Plugin$2.99
PNEUMATIC
No in-app purchases
Questions
Is Strange Loop free?
Is PNEUMATIC free?
Which has better reviews, Strange Loop or PNEUMATIC?
Do Strange Loop or PNEUMATIC have ads?
Other comparisons















