# Lector eLibro vs UDABook

The clearest difference is update cadence: UDABook at every 3 weeks against Lector eLibro's every 3 months. Lector eLibro's advantage is iOS requirement (15.6 vs 18.0). On price, ads, 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.

Lector eLibro ships an update every 3 months, UDABook every 3 weeks. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Lector eLibro | UDABook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (18 ratings)](https://appshunter.io/ios/app/lector-elibro/id1567947073/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 73 MB | 66 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [E-LIBRO CORPORATION](https://appshunter.io/developer/1461471078) | [Universidad del Azuay](https://appshunter.io/developer/1651454697) |

## What reviewers say

### Lector eLibro

[App page](https://appshunter.io/ios/app/lector-elibro/id1567947073)

Access your eLibro bookshelf and read books offline. Enjoy your digital library anytime, anywhere, without an internet connection.

**Highlights:** Offline reading, Access digital bookshelf, Read anytime, anywhere, No internet required

**Features:** macOS Compatibility

**In-app purchases:** none


### UDABook

[App page](https://appshunter.io/ios/app/udabook/id6746132182)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lector eLibro free?

Lector eLibro is free to download, with no in-app purchases.

### Is UDABook free?

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

### Do Lector eLibro or UDABook have ads?

Neither Lector eLibro nor UDABook shows ads.

### Which is updated more often, Lector eLibro or UDABook?

Lector eLibro ships an update every 3 months, and UDABook every 3 weeks. Most recently, Lector eLibro was updated on October 6, 2026 and UDABook on October 15, 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.*