PitchSetCalc vs Pixel Music
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PitchSetCalc
This music theory tool aids students and theorists in analyzing music using Set Theory. It calculates normal order, prime form, Forte number, and interval class vectors from user-inputted pitch class sets. The app also offers audio playback of entered sets as scales or simultaneities.
- Pitch class set entry via pitch wheel
- Calculates normal order
- Calculates prime form
- Calculates Forte number
- Calculates interval class vector
- Audio playback of pitch sets
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PitchSetCalc is a tool for music student and theorists that will help with the analysis of music using Set Theory. This app has a simple interface and works on both iPhone and iPad with iOS 10.0 and up. To enter in a new pitch class set, the user simply touches the pitches on the pitch wheel. As the pitches are entered, the app will calculate normal order, prime form, Forte number, and the interval class vector. The pitch wheel will display the pitches using sharps or flats. When the pitches are entered, each one will sound to give the user an idea of how the pitch class set sounds. There is also a playback function which will play the set as either a scale or simultaneity.
Pixel Music
Transform your favorite images into unique musical compositions. This app uses pixel data to control pitch, duration, and velocity, allowing you to create melodies and rhythms by interacting with visuals. Explore various traversal methods and image data types for diverse sonic results.
- Pixels control pitch, velocity, and note duration
- Play multiple images simultaneously
- AUv3 support with MIDI
- Ableton Link compatible
- Customizable image traversal and data mapping
- Internal synth with effects
- Save and load app states
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Pixel Music is a music sequencer based on images. Take an image you love and start playing. Overview ◦ Pixels turn into pitch, velocity, and note durations ◦ Play multiple images at the same time, in sync ◦ Choose what parts of the image will be played and at what timing ◦ Tap on the image and record yourself playing alongside the sequencer Features ◦ AUv3 with preset and MIDI support ◦ Ableton Link compatible ◦ Control sequencer timing and configuration ◦ Program different step lengths in patterns and play these across your images with Verses ◦ Choose between RGB, Luminance, Hue, or Saturation data to control pitch, velocity, or note duration ◦ Choose how the image is traversed, between Left -> Right, Top -> Down, or Circular. Select randomness factor in image traversal ◦ Choose recorded loop length and quantization settings ◦ Internal Synth with delay and reverb effects ◦ Send MIDI to external synths when used as AUv3. Each image you add has a separate MIDI channel exposed in the AU host ◦ Save and Load app states and configurations ◦ Dark mode support AU Hosts Compatibility ◦ Pixel Music works best with AUM, Audiobus, or ApeMatrix ◦ Pixel Music does NOT support Logic Pro or Garage Band Have fun with it.
Screenshots
Verdict
The clearest difference is rating: Pixel Music at 4.6 against PitchSetCalc's 3.5. Pixel Music also leads on review sentiment (82% vs 50%) and update cadence (every 8 months vs every 19 months). PitchSetCalc's advantage is price ($0.99 vs $5.99). On ads, in-app purchases, monetization model 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
PitchSetCalc costs $0.99 and Pixel Music $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Pixel Music holds the better App Store score, 4.6 against 3.5. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews point the same way: 50% of PitchSetCalc's written reviews are positive against 82% of Pixel Music's.
PitchSetCalc ships an update every 19 months, Pixel Music every 8 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | PitchSetCalc | Pixel Music |
|---|---|---|
| Price | $0.99 — better | $5.99 |
| Rating | 3.5 (2 ratings) | 4.6 (7 ratings) — better |
| Positive reviews | 50.0% of reviews | 81.8% of reviews — better |
| Number of ratings | 2 | 7 — better |
| Update frequency | Every 19 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Jess Hendricks | Andrei Antonescu |
Customer experience
PitchSetCalc
Pixel Music
In-app purchases
PitchSetCalc
No in-app purchases
Pixel Music
No in-app purchases









