# PercussionIQ vs Marching Mapper Buddy

The clearest difference is in-app purchases: Marching Mapper Buddy at none against PercussionIQ's 5. Marching Mapper Buddy also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. PercussionIQ sells 5 one-off in-app purchases. Marching Mapper Buddy asks for nothing beyond the download.

## The numbers

| Metric | PercussionIQ | Marching Mapper Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (15 ratings)](https://appshunter.io/ios/app/percussioniq/id6744618184/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 19 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Percussion IQ, LLC](https://appshunter.io/developer/1808479577) | [Christian Price](https://appshunter.io/developer/1880192070) |

## What reviewers say

### PercussionIQ

[App page](https://appshunter.io/ios/app/percussioniq/id6744618184)

This app offers advanced rhythmic training for percussionists using a grid methodology and intelligent practice tools. It helps users master complex polyrhythms, metric modulations, and rhythmic patterns with interactive features and a comprehensive library.

**Highlights:** GridLab Studio for custom rhythmic grids, Metric Modulation Calculator, Drum Smart Series library, IQ Methodology training, Advanced rhythmic variations, Save and load custom grids

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PercussionIQ | $2.99 | one-time |
| DSS World Class | $9.99 | one-time |
| DSS Open Class | $9.99 | one-time |
| DSS A-Class | $9.99 | one-time |
| Drum Smart Series | $29.99 | one-time |


### Marching Mapper Buddy

[App page](https://appshunter.io/ios/app/marching-mapper-buddy/id6759683433)

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

**In-app purchases:** none


## Frequently asked questions

### Is PercussionIQ free?

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

### Is Marching Mapper Buddy free?

Marching Mapper Buddy is free to download, with no in-app purchases.

### Do PercussionIQ or Marching Mapper Buddy have ads?

Neither PercussionIQ nor Marching Mapper Buddy shows ads.

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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.*