# Interval min vs Star Piano

The clearest difference is rating: Interval min at 5.0 against Star Piano's 1.0. Interval min also leads on ratings volume (6 vs 1). Star Piano's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Interval min holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Interval min has 6 ratings behind it against 1, so its average is the more settled of the two.

Interval min ships an update every 7 months, Star Piano every 4 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Interval min | Star Piano |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/interval-min/id937916331/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/star-piano/id996365589/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Ad-supported | **Free** |
| Size | 21 MB | 195 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) | [Egg Carton Studios](https://appshunter.io/developer/671543338) |

## What reviewers say

### Interval min

[App page](https://appshunter.io/ios/app/interval-min/id937916331)

Test your music theory knowledge by identifying chords. Listen to musical notation and select the correct chord from multiple choices. Improve your understanding of music with repeated play and adjustable instruments.

**Highlights:** Chord identification gameplay, Musical notation display, Multiple choice answers, Score tracking with penalties, Adjustable instrument sounds (piano, organ), Skip puzzles without penalty

**Features:** Vision Pro support

**In-app purchases:** none


### Star Piano

[App page](https://appshunter.io/ios/app/star-piano/id996365589)

Learn to play piano with interactive lessons and multiple game modes. Unlock new songs and explore different instruments as you progress through over 150 levels. Requires a compatible Bluetooth piano accessory.

**Highlights:** Over 150 unlockable levels, 6 gameplay types (rhythm, listening, scaling, chords, sheet music, songs), Step-by-step learning, 10 different worlds, Earn coins to unlock songs, Free style play with 15 instruments

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval min free?

Interval min is free to download, with no in-app purchases.

### Is Star Piano free?

Star Piano is free to download, with no in-app purchases.

### Which has better reviews, Interval min or Star Piano?

Interval min is rated higher. Interval min averages 5.0 out of 5 from 6 ratings, while Star Piano averages 1.0 from 1 ratings.

### Do Interval min or Star Piano have ads?

Interval min shows ads; Star Piano does not.

### Which is updated more often, Interval min or Star Piano?

Interval min ships an update every 7 months, and Star Piano every 4 months. Most recently, Interval min was updated on October 15, 2026 and Star Piano on October 7, 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.*