# PitchSetCalc vs Chordopia

The clearest difference is review sentiment: Chordopia at 100% against PitchSetCalc's 50%. Chordopia also leads on rating (4.7 vs 3.5) and ratings volume (60 vs 2). PitchSetCalc's advantage is price ($0.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

PitchSetCalc costs $0.99 and Chordopia $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Chordopia holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Chordopia has 60 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of PitchSetCalc's written reviews are positive against 100% of Chordopia's.

PitchSetCalc ships an update every 19 months, Chordopia every 7 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PitchSetCalc | Chordopia |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/pitchsetcalc/id884187756/reviews) | **[4.7 (60 ratings)](https://appshunter.io/ios/app/chordopia/id922029762/reviews)** |
| Number of ratings | 2 | **60** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 7 months** |
| Monetization | Paid | Paid |
| Size | 36 MB | 32 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jess Hendricks](https://appshunter.io/developer/884187759) | [Waxing Wave](https://appshunter.io/developer/392942046) |

## 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


### Chordopia

[App page](https://appshunter.io/ios/app/chordopia/id922029762)

This app helps musicians find guitar, ukulele, and mandolin chords. Input a chord name to see diagrams and hear its sound, or create a diagram to identify the chord. It supports custom tunings and generates voicings dynamically.

**Highlights:** Chord diagram generation, Chord identification from diagrams, Sound playback for chords, Support for alternate and custom tunings, Dynamic voicing search, Extensive chord type library

**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 Chordopia free?

Chordopia costs $3.99, with no in-app purchases.

### Which has better reviews, PitchSetCalc or Chordopia?

Chordopia is rated higher. PitchSetCalc averages 3.5 out of 5 from 2 ratings, while Chordopia averages 4.7 from 60 ratings.

### Do PitchSetCalc or Chordopia have ads?

Neither PitchSetCalc nor Chordopia shows ads.

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

PitchSetCalc ships an update every 19 months, and Chordopia every 7 months. Most recently, PitchSetCalc was updated on October 6, 2026 and Chordopia on October 7, 2026.

---

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