# Mozart 2 Pro vs iRhythm Random

The clearest difference is update cadence: iRhythm Random at every 10 days against Mozart 2 Pro's every 13 months. Mozart 2 Pro's advantage is price ($4.99 vs $6.99) and iOS requirement (14.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Mozart 2 Pro costs $4.99 and iRhythm Random $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mozart 2 Pro ships an update every 13 months, iRhythm Random every 10 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Mozart 2 Pro | iRhythm Random |
| --- | --- | --- |
| Price | **$4.99** | $6.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mozart-2-pro/id1049822737/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 10 days** |
| Monetization | Paid | — |
| Size | 33 MB | 300 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RoGame Software](https://appshunter.io/developer/285831223) | [Maurizio Salvi](https://appshunter.io/developer/1736599893) |

## What reviewers say

### Mozart 2 Pro

[App page](https://appshunter.io/ios/app/mozart-2-pro/id1049822737)

Learn to read music through an engaging game format. Practice identifying notes on a virtual instrument, anytime and anywhere. Improve your musical skills with increasing speed and difficulty.

**Highlights:** Learn to read music, Game-based learning, Virtual instrument included, Practice note identification, Adjustable difficulty, Play anywhere

**Features:** Vision Pro support

**In-app purchases:** none


### iRhythm Random

[App page](https://appshunter.io/ios/app/irhythm-random/id6479618009)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mozart 2 Pro free?

Mozart 2 Pro costs $4.99, with no in-app purchases.

### Is iRhythm Random free?

iRhythm Random costs $6.99, with no in-app purchases.

### Do Mozart 2 Pro or iRhythm Random have ads?

Neither Mozart 2 Pro nor iRhythm Random shows ads.

### Which is updated more often, Mozart 2 Pro or iRhythm Random?

Mozart 2 Pro ships an update every 13 months, and iRhythm Random every 10 days. Most recently, Mozart 2 Pro was updated on October 24, 2026 and iRhythm Random on October 11, 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.*