# Fresh Ventilation vs SOLAR SYS

The clearest difference is device support: Fresh Ventilation at 2 against SOLAR SYS's —. SOLAR SYS's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence and in-app purchases there is nothing between them.

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

Fresh Ventilation ships an update every 7 months, SOLAR SYS every 6 months. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Fresh Ventilation | SOLAR SYS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 55 MB | 14 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Fresh AB](https://appshunter.io/developer/1441416454) | [文 周](https://appshunter.io/developer/1071506295) |

## What reviewers say

### Fresh Ventilation

[App page](https://appshunter.io/ios/app/fresh-ventilation/id1441416455)

Control smart ventilation systems for optimal indoor air quality and comfort. Adjust fan speed, humidity, and air quality settings remotely. Schedule custom ventilation programs for a healthier home environment.

**Highlights:** Air quality sensor, Moisture control, Boost and Pause functions, Adjustable timer and humidity settings, Constant speed control, Scheduling custom programs, Device status monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### SOLAR SYS

[App page](https://appshunter.io/ios/app/solar-sys/id6596742875)

**In-app purchases:** none


## Frequently asked questions

### Is Fresh Ventilation free?

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

### Is SOLAR SYS free?

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

### Which is updated more often, Fresh Ventilation or SOLAR SYS?

Fresh Ventilation ships an update every 7 months, and SOLAR SYS every 6 months. Most recently, Fresh Ventilation was updated on October 1, 2026 and SOLAR SYS on September 28, 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.*