# Subtraction Math vs Learn Music Notes Piano Pro

The clearest difference is rating: Learn Music Notes Piano Pro at 4.5 against Subtraction Math's 3.9. Learn Music Notes Piano Pro also leads on review sentiment (75% vs 50%) and ratings volume (87 vs 7). Subtraction Math's advantage is price ($1.99 vs $5.99) and device support (5 vs 3). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Subtraction Math costs $1.99 and Learn Music Notes Piano Pro $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn Music Notes Piano Pro holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Learn Music Notes Piano Pro has 87 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 50% of Subtraction Math's written reviews are positive against 75% of Learn Music Notes Piano Pro's.

Subtraction Math ships an update every 4 months, Learn Music Notes Piano Pro every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Subtraction Math | Learn Music Notes Piano Pro |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/subtraction-math-ibbleobble/id978343612/reviews) | **[4.5 (87 ratings)](https://appshunter.io/ios/app/learn-music-notes-piano-pro/id1323685755/reviews)** |
| Number of ratings | 7 | **87** |
| Positive reviews | 50.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 17 MB | 6 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KidDotCo](https://appshunter.io/developer/819246599) | [michal bojanowicz](https://appshunter.io/developer/1135528823) |

## What reviewers say

### Subtraction Math

[App page](https://appshunter.io/ios/app/subtraction-math-ibbleobble/id978343612)

This educational game helps children aged 5-8 practice subtraction skills through engaging drills and multiple-choice questions. It offers a flexible learning pace with an optional timer and vibrant visuals to make arithmetic fun.

**Highlights:** Subtraction drills, Multiple choice format, Adjustable difficulty, Optional timer, Colorful graphics and sounds, Universal purchase

**Features:** iMessage stickers

**In-app purchases:** none


### Learn Music Notes Piano Pro

[App page](https://appshunter.io/ios/app/learn-music-notes-piano-pro/id1323685755)

Learn music notes and sight-reading with this educational app. It supports real instruments like piano, guitar, and violin, or even your voice. Features include color-coded notes, progress tracking, and customizable exercises for effective learning.

**Highlights:** Learn music notes and sight-reading, Supports real instruments (piano, guitar, violin) and voice, Color-coded notes for association, Progress tracking for children, Customizable exercises, Virtual piano keyboard and music flashcards

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

**In-app purchases:** none


## Frequently asked questions

### Is Subtraction Math free?

Subtraction Math costs $1.99, with no in-app purchases.

### Is Learn Music Notes Piano Pro free?

Learn Music Notes Piano Pro costs $5.99, with no in-app purchases.

### Which has better reviews, Subtraction Math or Learn Music Notes Piano Pro?

Learn Music Notes Piano Pro is rated higher. Subtraction Math averages 3.9 out of 5 from 7 ratings, while Learn Music Notes Piano Pro averages 4.5 from 87 ratings.

### Do Subtraction Math or Learn Music Notes Piano Pro have ads?

Neither Subtraction Math nor Learn Music Notes Piano Pro shows ads.

### Which is updated more often, Subtraction Math or Learn Music Notes Piano Pro?

Subtraction Math ships an update every 4 months, and Learn Music Notes Piano Pro every 2 months. Most recently, Subtraction Math was updated on November 1, 2026 and Learn Music Notes Piano Pro on November 2, 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.*