# YTL Construction Library vs Bookil

The clearest difference is update cadence: YTL Construction Library at weekly against Bookil's fortnightly. YTL Construction Library also leads on iOS requirement (11.0 vs 18.4). 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.

YTL Construction Library ships an update weekly, Bookil fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | YTL Construction Library | Bookil |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 50 MB | 2 MB |
| Requires iOS | **11.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YTL Communications Sdn. Bhd.](https://appshunter.io/developer/428227024) | [Labee LLC](https://appshunter.io/developer/1745874776) |

## What reviewers say

### YTL Construction Library

[App page](https://appshunter.io/ios/app/ytl-construction-library/id1536929032)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bookil

[App page](https://appshunter.io/ios/app/bookil-pdf-library-and-reader/id6475175265)

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

**In-app purchases:** none


## Frequently asked questions

### Is YTL Construction Library free?

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

### Is Bookil free?

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

### Do YTL Construction Library or Bookil have ads?

Neither YTL Construction Library nor Bookil shows ads.

### Which is updated more often, YTL Construction Library or Bookil?

YTL Construction Library ships an update weekly, and Bookil fortnightly. Most recently, YTL Construction Library was updated on October 25, 2026 and Bookil on October 25, 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.*