# Esther App vs MySondy GO

The clearest difference is update cadence: Esther App at every 5 days against MySondy GO's monthly. Esther App also leads on iOS requirement (10.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Esther App ships an update every 5 days, MySondy GO monthly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Esther App | MySondy GO |
| --- | --- | --- |
| 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 | **Every 5 days** | Monthly |
| Monetization | — | Free |
| Size | 72 MB | 12 MB |
| Requires iOS | **10.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Senzil S.R.L.](https://appshunter.io/developer/1282455810) | [MIRKO DALMONTE](https://appshunter.io/developer/1809497083) |

## What reviewers say

### Esther App

[App page](https://appshunter.io/ios/app/esther-app/id1448876650)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Esther App free?

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

### Is MySondy GO free?

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

### Do Esther App or MySondy GO have ads?

Neither Esther App nor MySondy GO shows ads.

### Which is updated more often, Esther App or MySondy GO?

Esther App ships an update every 5 days, and MySondy GO monthly. Most recently, Esther App was updated on October 10, 2026 and MySondy GO on October 6, 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.*