# A2B vs DataFly

The clearest difference is update cadence: DataFly at every 3 days against A2B's monthly. A2B's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.

A2B ships an update monthly, DataFly every 3 days. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | A2B | DataFly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 51 MB | 25 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [WeGo B.V.](https://appshunter.io/developer/1078283860) | [DATAFLY ESIM LTD](https://appshunter.io/developer/6785398817) |

## What reviewers say

### A2B

[App page](https://appshunter.io/ios/app/a2b/id1525355199)

**Features:** Vision Pro support

**In-app purchases:** none


### DataFly

[App page](https://appshunter.io/ios/app/datafly-travel-esim-and-data/id6785398815)

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

**In-app purchases:** none


## Frequently asked questions

### Is A2B free?

A2B is free to download, with no in-app purchases.

### Is DataFly free?

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

### Do A2B or DataFly have ads?

Neither A2B nor DataFly shows ads.

### Which is updated more often, A2B or DataFly?

A2B ships an update monthly, and DataFly every 3 days. Most recently, A2B was updated on October 25, 2026 and DataFly on October 17, 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.*