# Unfold vs GMO App

The clearest difference is price: GMO App at Free against Unfold's $0.99. GMO App also leads on update cadence (every 3 months vs every 14 months) and review sentiment (100% vs 84%). Unfold's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

GMO App is free to download; Unfold costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Unfold ships an update every 14 months, GMO App every 3 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Unfold | GMO App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.2 (47 ratings)](https://appshunter.io/ios/app/unfold/id557099803/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 83.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 1 MB | 40 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hangas](https://appshunter.io/developer/433121902) | [Jan Philipp Dahms](https://appshunter.io/developer/1474942026) |

## What reviewers say

### Unfold

[App page](https://appshunter.io/ios/app/unfold/id557099803)

Explore the mathematical and artistic beauty of 3D geometric solids on your device. Interact with 63 different symmetrical shapes, rotating and unfolding them to understand their geometry. Discover Platonic, Archimedean, and Johnson solids with an elegant interface and customizable colors.

**Highlights:** Interactive 3D solids, 63 different geometric shapes, Rotate and zoom functionality, Fold and unfold solids, 18 color options

**Features:** macOS Compatibility

**In-app purchases:** none


### GMO App

[App page](https://appshunter.io/ios/app/gmo-app/id1510618392)

This app provides quick access to school schedules and substitute teacher plans for Gymnasium Mainz-Oberstadt. Receive instant push notifications for schedule changes and important parent letters. Stay informed about your child's education with personalized updates.

**Highlights:** Individualized schedule access, Substitute plan updates, Push notifications for changes, Parent letter notifications, Quick portal connection

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

**In-app purchases:** none


## Frequently asked questions

### Is Unfold free?

Unfold costs $0.99, with no in-app purchases.

### Is GMO App free?

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

### Do Unfold or GMO App have ads?

Neither Unfold nor GMO App shows ads.

### Which is updated more often, Unfold or GMO App?

Unfold ships an update every 14 months, and GMO App every 3 months. Most recently, Unfold was updated on October 23, 2026 and GMO App on October 20, 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.*