# Music Interval Quiz Master vs PistonLink

The clearest difference is price: PistonLink at Free against Music Interval Quiz Master's $0.99. PistonLink also leads on update cadence (every 6 days vs every 2 months) and device support (3 vs 1). Music Interval Quiz Master's advantage is iOS requirement (16.0 vs 26.0). On ads and in-app purchases there is nothing between them.

PistonLink is free to download; Music Interval Quiz Master costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Music Interval Quiz Master ships an update every 2 months, PistonLink every 6 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Music Interval Quiz Master | PistonLink |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pistonlink/id6768714643/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 12 MB | 19 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Bum Tae Yoon](https://appshunter.io/developer/1578285460) | [Greg Nelson](https://appshunter.io/developer/1896598748) |

## What reviewers say

### Music Interval Quiz Master

[App page](https://appshunter.io/ios/app/music-interval-quiz-master/id6738980588)

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

**In-app purchases:** none


### PistonLink

[App page](https://appshunter.io/ios/app/pistonlink/id6768714643)

Instantly save and deploy organ registration profiles to your instrument's memory pistons via MIDI. Features hands-free PDF page turns and AI-powered hymn registration suggestions.

**Highlights:** Save and deploy organ registration profiles, MIDI SysEx integration for piston memory, Hands-free PDF page turning via wink gestures, Curated stop suggestions for hymns, AI-powered hymn registration suggestions, Access organ voice palettes directly

**In-app purchases:** none


## Frequently asked questions

### Is Music Interval Quiz Master free?

Music Interval Quiz Master costs $0.99, with no in-app purchases.

### Is PistonLink free?

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

### Do Music Interval Quiz Master or PistonLink have ads?

Neither Music Interval Quiz Master nor PistonLink shows ads.

### Which is updated more often, Music Interval Quiz Master or PistonLink?

Music Interval Quiz Master ships an update every 2 months, and PistonLink every 6 days. Most recently, Music Interval Quiz Master was updated on October 28, 2026 and PistonLink on October 28, 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.*