# eCatch Mobile vs Thermokon USEapp

The clearest difference is update cadence: eCatch Mobile at every 6 days against Thermokon USEapp's every 3 months. 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.

eCatch Mobile ships an update every 6 days, Thermokon USEapp every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | eCatch Mobile | Thermokon USEapp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 months |
| Size | 255 MB | 27 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Nature Conservancy](https://appshunter.io/developer/528250595) | [Thermokon Sensortechnik GmbH](https://appshunter.io/developer/1252644429) |

## What reviewers say

### eCatch Mobile

[App page](https://appshunter.io/ios/app/ecatch-mobile/id1061243164)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thermokon USEapp

[App page](https://appshunter.io/ios/app/thermokon-useapp/id1252644430)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eCatch Mobile free?

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

### Is Thermokon USEapp free?

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

### Do eCatch Mobile or Thermokon USEapp have ads?

Neither eCatch Mobile nor Thermokon USEapp shows ads.

### Which is updated more often, eCatch Mobile or Thermokon USEapp?

eCatch Mobile ships an update every 6 days, and Thermokon USEapp every 3 months. Most recently, eCatch Mobile was updated on October 26, 2026 and Thermokon USEapp on October 24, 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.*