# 4DNum vs esim2travel

The clearest difference is iOS requirement: 4DNum at 13.4 against esim2travel's 15.6. 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.

4DNum ships an update every 6 weeks, esim2travel monthly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 4DNum | esim2travel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 28 MB | 59 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Kian Kok Lai](https://appshunter.io/developer/1631952503) | [VIVOHUB MOBILE PTE. LTD](https://appshunter.io/developer/1475619383) |

## What reviewers say

### 4DNum

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

**Features:** macOS Compatibility

**In-app purchases:** none


### esim2travel

[App page](https://appshunter.io/ios/app/esim2travel/id6743928685)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 4DNum free?

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

### Is esim2travel free?

esim2travel is free to download, with no in-app purchases.

### Do 4DNum or esim2travel have ads?

Neither 4DNum nor esim2travel shows ads.

### Which is updated more often, 4DNum or esim2travel?

4DNum ships an update every 6 weeks, and esim2travel monthly. Most recently, 4DNum was updated on October 27, 2026 and esim2travel on October 30, 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.*