# CHECK vs معرض الكتاب الإسلامي

The clearest difference is iOS requirement: معرض الكتاب الإسلامي at 12.0 against CHECK's 14.0.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CHECK ships an update every 9 days, معرض الكتاب الإسلامي every 5 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | CHECK | معرض الكتاب الإسلامي |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/check/id6498866960/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free | — |
| Size | 79 MB | 29 MB |
| Requires iOS | 14.0.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Saad Alhaddad](https://appshunter.io/developer/1699895335) | [Mohamed Fathalla](https://appshunter.io/developer/1808768336) |

## What reviewers say

### CHECK

[App page](https://appshunter.io/ios/app/check/id6498866960)

This app offers construction calculation tools for material and cost estimation, area and volume calculations, and unit conversion. It also features a business card list for networking, allowing users to create and share their cards, and rate/review others.

**Highlights:** Material estimation, Cost estimation, Area and volume calculations, Unit conversion, Create business cards, Rate and review contacts

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### معرض الكتاب الإسلامي

[App page](https://appshunter.io/ios/app/id6744659960)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CHECK free?

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

### Is معرض الكتاب الإسلامي free?

معرض الكتاب الإسلامي is free to download, with no in-app purchases.

### Do CHECK or معرض الكتاب الإسلامي have ads?

Neither CHECK nor معرض الكتاب الإسلامي shows ads.

### Which is updated more often, CHECK or معرض الكتاب الإسلامي?

CHECK ships an update every 9 days, and معرض الكتاب الإسلامي every 5 days. Most recently, CHECK was updated on October 7, 2026 and معرض الكتاب الإسلامي 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.*