# JM vs GPS Speedometer

The clearest difference is device support: JM at 3 against GPS Speedometer's 1. JM also leads on iOS requirement (13.0 vs 16.0). 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.

## The numbers

| Metric | JM | GPS Speedometer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 18 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Japan Radio Co.,Ltd.](https://appshunter.io/developer/932220259) | [YOSHIKAZU OHORI](https://appshunter.io/developer/6772688659) |

## What reviewers say

### JM

[App page](https://appshunter.io/ios/app/jm-watcher/id932220260)

**In-app purchases:** none


### GPS Speedometer

[App page](https://appshunter.io/ios/app/gps-speedometer/id6772964735)

**In-app purchases:** none


## Frequently asked questions

### Is JM free?

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

### Is GPS Speedometer free?

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

### Do JM or GPS Speedometer have ads?

Neither JM nor GPS Speedometer shows ads.

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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.*