# Universal Library vs Wobbly Orbit

The clearest difference is update cadence: Wobbly Orbit at every 2 months against Universal Library's every 40 months. Wobbly Orbit also leads on device support (3 vs 1). Universal Library's advantage is iOS requirement (12.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

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

Universal Library ships an update every 40 months, Wobbly Orbit every 2 months. The most recent releases landed on October 3, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Universal Library | Wobbly Orbit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 months** |
| Size | 180 MB | 136 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Millen](https://appshunter.io/developer/1252268308) | [ZigZarc Ltd](https://appshunter.io/developer/392545124) |

## What reviewers say

### Universal Library

[App page](https://appshunter.io/ios/app/universal-library/id1503995339)

**Features:** macOS Compatibility

**In-app purchases:** none


### Wobbly Orbit

[App page](https://appshunter.io/ios/app/wobbly-orbit/id1595928360)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Universal Library free?

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

### Is Wobbly Orbit free?

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

### Do Universal Library or Wobbly Orbit have ads?

Neither Universal Library nor Wobbly Orbit shows ads.

### Which is updated more often, Universal Library or Wobbly Orbit?

Universal Library ships an update every 40 months, and Wobbly Orbit every 2 months. Most recently, Universal Library was updated on October 3, 2026 and Wobbly Orbit on October 17, 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.*