# MySondy GO vs ChathamAlert

The clearest difference is device support: ChathamAlert at 4 against MySondy GO's 2. ChathamAlert also leads on iOS requirement (13.2 vs 16.6). 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 | MySondy GO | ChathamAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/mysondy-go/id6744840307/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 12 MB | 42 MB |
| Requires iOS | 16.6 | **13.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MIRKO DALMONTE](https://appshunter.io/developer/1809497083) | [Chatham University](https://appshunter.io/developer/700739891) |

## What reviewers say

### MySondy GO

[App page](https://appshunter.io/ios/app/mysondy-go/id6744840307)

This app aids in radio sonde field research by connecting to a TTGO Lora 32 device via Bluetooth. It displays the probe's position, smartphone location, and received data on a map. It also offers standalone and companion functionality for Apple Watch.

**Highlights:** Bluetooth connectivity to TTGO Lora 32, Real-time map display of probe and smartphone positions, Displays received radio sonde data, Standalone Apple Watch app, Companion Apple Watch app

**Features:** macOS Compatibility

**In-app purchases:** none


### ChathamAlert

[App page](https://appshunter.io/ios/app/chathamalert/id6791278277)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is MySondy GO free?

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

### Is ChathamAlert free?

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

### Do MySondy GO or ChathamAlert have ads?

Neither MySondy GO nor ChathamAlert 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.*