# Idrosistemi vs s5a

The clearest difference is update cadence: Idrosistemi at every 4 months against s5a's every 18 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.

Idrosistemi ships an update every 4 months, s5a every 18 months. The most recent releases landed on October 26, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Idrosistemi | s5a |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 18 months |
| Monetization | — | Free |
| Size | 21 MB | 13 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Idrosistemi srl](https://appshunter.io/developer/1458841993) | [S5A](https://appshunter.io/developer/1495192506) |

## What reviewers say

### Idrosistemi

[App page](https://appshunter.io/ios/app/idrosistemi/id1458841994)

**Features:** macOS Compatibility

**In-app purchases:** none


### s5a

[App page](https://appshunter.io/ios/app/s5a/id1497161831)

Control your entire heating and cooling system remotely. Adjust settings based on your schedule, monitor temperature and humidity in different zones, and manage unexpected events to optimize comfort and reduce costs.

**Highlights:** Remote system management, Zone temperature monitoring, Humidity level reading, Scheduling by time bands, Heating and cooling control, Air exchange management, Domestic hot water control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Idrosistemi free?

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

### Is s5a free?

s5a is free to download, with no in-app purchases.

### Do Idrosistemi or s5a have ads?

Neither Idrosistemi nor s5a shows ads.

### Which is updated more often, Idrosistemi or s5a?

Idrosistemi ships an update every 4 months, and s5a every 18 months. Most recently, Idrosistemi was updated on October 26, 2026 and s5a on October 11, 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.*