# AUMI vs PDF Songbook

The clearest difference is in-app purchases: AUMI at none against PDF Songbook's 1. AUMI also leads on iOS requirement (12.4 vs 16.0). PDF Songbook's advantage is update cadence (monthly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. PDF Songbook sells 1 one-off in-app purchase. AUMI asks for nothing beyond the download.

AUMI ships an update every 6 months, PDF Songbook monthly. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AUMI | PDF Songbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/aumi/id647002265/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free | — |
| Size | 69 MB | 11 MB |
| Requires iOS | **12.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rensselaer Polytechnic Institute](https://appshunter.io/developer/545728224) | [JAKUB MACIEJ FURMAN](https://appshunter.io/developer/6792297399) |

## What reviewers say

### AUMI

[App page](https://appshunter.io/ios/app/aumi/id647002265)

This app allows individuals with limited mobility to create music through movement and gestures. It focuses on improvisation and self-expression, making music accessible to a wider range of people, including those with profound physical disabilities.

**Highlights:** Music creation through movement and gestures, Focus on improvisation and self-expression, Accessible for individuals with profound physical disabilities, Uses device cameras for input, Configurable sound sensitivity, MIDI controller functionality, Import audio from other apps

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Songbook

[App page](https://appshunter.io/ios/app/pdf-songbook/id6792297397)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Songbook Pro | $12.99 | one-time |


## Frequently asked questions

### Is AUMI free?

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

### Is PDF Songbook free?

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

### Do AUMI or PDF Songbook have ads?

Neither AUMI nor PDF Songbook shows ads.

### Which is updated more often, AUMI or PDF Songbook?

AUMI ships an update every 6 months, and PDF Songbook monthly. Most recently, AUMI was updated on October 11, 2026 and PDF Songbook on October 25, 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.*