# 4DNum vs Uni Member

The clearest difference is update cadence: Uni Member at every 4 days against 4DNum's every 6 weeks. 4DNum's advantage is iOS requirement (13.4 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.

4DNum ships an update every 6 weeks, Uni Member every 4 days. The most recent releases landed on September 20, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | 4DNum | Uni Member |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Size | 28 MB | 51 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kian Kok Lai](https://appshunter.io/developer/1631952503) | [kekewong](https://appshunter.io/developer/1497138350) |

## What reviewers say

### 4DNum

[App page](https://appshunter.io/ios/app/4dnum/id1631952501)

**Features:** macOS Compatibility

**In-app purchases:** none


### Uni Member

[App page](https://appshunter.io/ios/app/uni-member/id1634970349)

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

**In-app purchases:** none


## Frequently asked questions

### Is 4DNum free?

4DNum is free to download, with no in-app purchases.

### Is Uni Member free?

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

### Do 4DNum or Uni Member have ads?

Neither 4DNum nor Uni Member shows ads.

### Which is updated more often, 4DNum or Uni Member?

4DNum ships an update every 6 weeks, and Uni Member every 4 days. Most recently, 4DNum was updated on September 20, 2026 and Uni Member on September 11, 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.*