# Würthermostat vs Èisy

The clearest difference is update cadence: Èisy at every 3 months against Würthermostat's every 12 months. Würthermostat's advantage is iOS requirement (10.0 vs 15.6). 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.

Würthermostat ships an update every 12 months, Èisy every 3 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | Würthermostat | Èisy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Size | 205 MB | 10 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Wuerth Srl](https://appshunter.io/developer/587446663) | [IBILL SRL SEMPLIFICATA](https://appshunter.io/developer/1458513076) |

## What reviewers say

### Würthermostat

[App page](https://appshunter.io/ios/app/wurthermostat/id1535653546)

**In-app purchases:** none


### Èisy

[App page](https://appshunter.io/ios/app/eisy/id6502143840)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Würthermostat free?

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

### Is Èisy free?

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

### Do Würthermostat or Èisy have ads?

Neither Würthermostat nor Èisy shows ads.

### Which is updated more often, Würthermostat or Èisy?

Würthermostat ships an update every 12 months, and Èisy every 3 months. Most recently, Würthermostat was updated on September 30, 2026 and Èisy on September 30, 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.*