# YTL Construction Library vs G&G Material Tracker

The clearest difference is update cadence: YTL Construction Library at weekly against G&G Material Tracker's every 6 weeks. YTL Construction Library also leads on iOS requirement (11.0 vs 15.1). 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, G&G Material Tracker every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | YTL Construction Library | G&G Material Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Size | 50 MB | 74 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YTL Communications Sdn. Bhd.](https://appshunter.io/developer/428227024) | [G&G Door Products, Inc.](https://appshunter.io/developer/1539959672) |

## What reviewers say

### YTL Construction Library

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

**Features:** macOS Compatibility

**In-app purchases:** none


### G&G Material Tracker

[App page](https://appshunter.io/ios/app/g-and-g-material-tracker/id1539959670)

**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 G&G Material Tracker free?

G&G Material Tracker is free to download, with no in-app purchases.

### Do YTL Construction Library or G&G Material Tracker have ads?

Neither YTL Construction Library nor G&G Material Tracker shows ads.

### Which is updated more often, YTL Construction Library or G&G Material Tracker?

YTL Construction Library ships an update weekly, and G&G Material Tracker every 6 weeks. Most recently, YTL Construction Library was updated on November 3, 2026 and G&G Material Tracker on November 3, 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.*