# PitchSetCalc vs SetClass

The clearest difference is update cadence: SetClass at every 2 months against PitchSetCalc's every 19 months. PitchSetCalc's advantage is price ($0.99 vs $4.99) and iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

PitchSetCalc costs $0.99 and SetClass $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PitchSetCalc ships an update every 19 months, SetClass every 2 months. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | PitchSetCalc | SetClass |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/pitchsetcalc/id884187756/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 36 MB | 88 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jess Hendricks](https://appshunter.io/developer/884187759) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## What reviewers say

### PitchSetCalc

[App page](https://appshunter.io/ios/app/pitchsetcalc/id884187756)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### SetClass

[App page](https://appshunter.io/ios/app/setclass/id6785144247)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PitchSetCalc free?

PitchSetCalc costs $0.99, with no in-app purchases.

### Is SetClass free?

SetClass costs $4.99, with no in-app purchases.

### Do PitchSetCalc or SetClass have ads?

Neither PitchSetCalc nor SetClass shows ads.

### Which is updated more often, PitchSetCalc or SetClass?

PitchSetCalc ships an update every 19 months, and SetClass every 2 months. Most recently, PitchSetCalc was updated on October 6, 2026 and SetClass on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*