# ChordMaps2 vs FormKey

The clearest difference is price: FormKey at Free against ChordMaps2's $9.99. FormKey also leads on update cadence (fortnightly vs every 6 months) and rating (4.3 vs 4.1). ChordMaps2's advantage is in-app purchases (none vs 1) and review sentiment (82% vs 50%). On ads, monetization model and device support there is nothing between them.

FormKey is free to download; ChordMaps2 costs $9.99 up front. FormKey sells 1 one-off in-app purchase. ChordMaps2 asks for nothing beyond the download.

FormKey holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 26 and 6 respectively. Written reviews complicate that: 82% of ChordMaps2's written reviews are positive against 50% of FormKey's, so the app with the better star average is not the one people write more warmly about.

ChordMaps2 ships an update every 6 months, FormKey fortnightly. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ChordMaps2 | FormKey |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.1 (26 ratings)](https://appshunter.io/ios/app/chordmaps2/id1098330720/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/formkey/id1535350561/reviews)** |
| Number of ratings | **26** | 6 |
| Positive reviews | **82.1% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 9 MB | 86 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Malcolm Mugglin](https://appshunter.io/developer/533859939) | [Polyhedra](https://appshunter.io/developer/1535350563) |

## What reviewers say

### ChordMaps2

[App page](https://appshunter.io/ios/app/chordmaps2/id1098330720)

This music app allows musicians, songwriters, educators, and students to explore and improvise chord progressions, melody, and bass lines. It utilizes "Musical Maps" for intuitive chord exploration and can function as a MIDI controller for external synth apps.

**Highlights:** Explore chord progressions on Musical Maps, Improvise melody and bass lines, Supports major and minor keys, MIDI controller functionality, Demonstrate music theory concepts, Create ear-training exercises

**In-app purchases:** none


### FormKey

[App page](https://appshunter.io/ios/app/formkey/id1535350561)

This app is an intuitive MIDI controller that helps musicians improve by using shapes for notes and colors for octaves. Its unique isomorphic keys aid in pattern recognition and chord discovery, making music creation more accessible.

**Highlights:** Shape-based note input, Color-coded octaves, Isomorphic key layout, Pattern recognition aid, Chord discovery assistance, Future update commitment

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FormKey Full Unlock | $14.99 | one-time |


## Frequently asked questions

### Is ChordMaps2 free?

ChordMaps2 costs $9.99, with no in-app purchases.

### Is FormKey free?

FormKey is free to download, with in-app purchases available.

### Which has better reviews, ChordMaps2 or FormKey?

FormKey is rated higher. ChordMaps2 averages 4.1 out of 5 from 26 ratings, while FormKey averages 4.3 from 6 ratings.

### Do ChordMaps2 or FormKey have ads?

Neither ChordMaps2 nor FormKey shows ads.

### Which is updated more often, ChordMaps2 or FormKey?

ChordMaps2 ships an update every 6 months, and FormKey fortnightly. Most recently, ChordMaps2 was updated on September 22, 2026 and FormKey on September 19, 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.*