# JM2 SatControl vs AT4

The clearest difference is device support: JM2 SatControl at 3 against AT4's —. On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | JM2 SatControl | AT4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 15 months | — |
| Size | 22 MB | 20 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [ADVANCED SERVICES JM2 S.L](https://appshunter.io/developer/1004460162) | [Kairos Concept S.L.](https://appshunter.io/developer/1524920303) |

## What reviewers say

### JM2 SatControl

[App page](https://appshunter.io/ios/app/jm2-satcontrol/id1466392063)

**In-app purchases:** none


### AT4

[App page](https://appshunter.io/ios/app/at4/id1524920301)

**In-app purchases:** none


## Frequently asked questions

### Is JM2 SatControl free?

JM2 SatControl is free to download, with no in-app purchases.

### Is AT4 free?

AT4 is free to download, with no in-app purchases.

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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.*