# MySondy GO vs LY4A DX Reminder

The clearest difference is update cadence: LY4A DX Reminder at every 3 days against MySondy GO's monthly. 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.

MySondy GO ships an update monthly, LY4A DX Reminder every 3 days. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MySondy GO | LY4A DX Reminder |
| --- | --- | --- |
| 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 | **Every 3 days** |
| Monetization | Free | — |
| Size | 12 MB | 32 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIRKO DALMONTE](https://appshunter.io/developer/1809497083) | [Internet SOLUTIONS,UAB](https://appshunter.io/developer/6808624747) |

## 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


### LY4A DX Reminder

[App page](https://appshunter.io/ios/app/ly4a-dx-reminder/id6808624744)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MySondy GO free?

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

### Is LY4A DX Reminder free?

LY4A DX Reminder is free to download, with no in-app purchases.

### Do MySondy GO or LY4A DX Reminder have ads?

Neither MySondy GO nor LY4A DX Reminder shows ads.

### Which is updated more often, MySondy GO or LY4A DX Reminder?

MySondy GO ships an update monthly, and LY4A DX Reminder every 3 days. Most recently, MySondy GO was updated on October 6, 2026 and LY4A DX Reminder on October 1, 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.*