# Pro Osteo vs 3D Ukulele Notes

The clearest difference is ads: Pro Osteo at none against 3D Ukulele Notes's shown. Pro Osteo also leads on update cadence (every 7 months vs every 64 months). 3D Ukulele Notes's advantage is iOS requirement (12.0 vs 15.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Pro Osteo ships an update every 7 months, 3D Ukulele Notes every 64 months. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Pro Osteo | 3D Ukulele Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (50 ratings)](https://appshunter.io/ios/app/3d-ukulele-notes-fingering/id1450628837/reviews)** |
| Number of ratings | — | **50** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 7 months** | Every 64 months |
| Monetization | — | Ad-supported |
| Size | 66 MB | 98 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Panta Rhei Opleidingen B.V.](https://appshunter.io/developer/1484811979) | [DENYS BELIAEV](https://appshunter.io/developer/1392370303) |

## What reviewers say

### Pro Osteo

[App page](https://appshunter.io/ios/app/pro-osteo/id950070129)

**Features:** Vision Pro support

**In-app purchases:** none


### 3D Ukulele Notes

[App page](https://appshunter.io/ios/app/3d-ukulele-notes-fingering/id1450628837)

Learn to play the ukulele with interactive 3D models that show finger positions. Hear the sound of each note and access dedicated lessons to master the instrument. This app focuses on individual notes rather than chords.

**Highlights:** 3D finger position demonstrations, Individual note sound playback, Ukulele lesson section, Fretboard note visualization, Focus on single notes, not chords

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pro Osteo free?

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

### Is 3D Ukulele Notes free?

3D Ukulele Notes is free to download, with no in-app purchases.

### Do Pro Osteo or 3D Ukulele Notes have ads?

3D Ukulele Notes shows ads; Pro Osteo does not.

### Which is updated more often, Pro Osteo or 3D Ukulele Notes?

Pro Osteo ships an update every 7 months, and 3D Ukulele Notes every 64 months. Most recently, Pro Osteo was updated on October 3, 2026 and 3D Ukulele Notes on October 13, 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.*