# UniBS Library vs Trope

The clearest difference is in-app purchases: UniBS Library at none against Trope's 1. UniBS Library also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.5). Trope's advantage is update cadence (every 3 days vs every 29 months). On price and device support there is nothing between them.

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

UniBS Library ships an update every 29 months, Trope every 3 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | UniBS Library | Trope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Every 3 days** |
| Size | 26 MB | 95 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [DOT BEYOND SRL](https://appshunter.io/developer/1384557126) | [Michele Galbiati](https://appshunter.io/developer/1857455998) |

## What reviewers say

### UniBS Library

[App page](https://appshunter.io/ios/app/unibs-library/id975176346)

**In-app purchases:** none


### Trope

[App page](https://appshunter.io/ios/app/trope-tracker-libri/id6789898826)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trope Ad-Free | $0.99 | one-time |


## Frequently asked questions

### Is UniBS Library free?

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

### Is Trope free?

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

### Do UniBS Library or Trope have ads?

Trope shows ads; UniBS Library does not.

### Which is updated more often, UniBS Library or Trope?

UniBS Library ships an update every 29 months, and Trope every 3 days. Most recently, UniBS Library was updated on October 11, 2026 and Trope on October 8, 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.*