# 3 Grab vs Chemrix

The clearest difference is ads: 3 Grab at none against Chemrix's shown. 3 Grab also leads on iOS requirement (12.0 vs 15.0). Chemrix's advantage is update cadence (weekly vs every 7 months). On price, 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.

3 Grab ships an update every 7 months, Chemrix weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | 3 Grab | Chemrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/3-grab/id1522657668/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Free | — |
| Size | 65 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ministry Of Post And Telecommunications of Lao PDR](https://appshunter.io/developer/1522657670) | [亚涛 冯](https://appshunter.io/developer/1868561246) |

## What reviewers say

### 3 Grab

[App page](https://appshunter.io/ios/app/3-grab/id1522657668)

This app allows dealers to register SIM cards online for Lao PDR, fulfilling regulatory obligations. It offers a digital alternative to paper-based registrations, saving time and costs. Users can select mobile operators, upload documents, and track registration status.

**Highlights:** Online SIM card registration, Supports all mobile operators, Digital alternative to paper, Secure login, SMS notifications for status, Review and edit before submission

**Features:** macOS Compatibility

**In-app purchases:** none


### Chemrix

[App page](https://appshunter.io/ios/app/chemrix/id6773266733)

**In-app purchases:** none


## Frequently asked questions

### Is 3 Grab free?

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

### Is Chemrix free?

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

### Do 3 Grab or Chemrix have ads?

Chemrix shows ads; 3 Grab does not.

### Which is updated more often, 3 Grab or Chemrix?

3 Grab ships an update every 7 months, and Chemrix weekly. Most recently, 3 Grab was updated on October 24, 2026 and Chemrix on October 24, 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.*