# UO Library vs hibi tracker

The clearest difference is in-app purchases: UO Library at none against hibi tracker's 1. UO Library also leads on device support and iOS requirement (15.0 vs 26.0). On price there is nothing between them.

Both are free to download. hibi tracker sells 1 one-off in-app purchase. UO Library asks for nothing beyond the download.

## The numbers

| Metric | UO Library | hibi tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 2 weeks | — |
| Size | 356 MB | 4 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 4+ |
| Developer | [Meescan Inc.](https://appshunter.io/developer/1609729285) | [NICHINICHI, LLC](https://appshunter.io/developer/1895009643) |

## What reviewers say

### UO Library

[App page](https://appshunter.io/ios/app/uo-library/id6739070027)

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

**In-app purchases:** none


### hibi tracker

[App page](https://appshunter.io/ios/app/hibi-tracker/id6762784260)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Developer | $0.49 | one-time |


## Frequently asked questions

### Is UO Library free?

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

### Is hibi tracker free?

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

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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.*