# Fumis AIR by Atech vs Esolar+

The clearest difference is update cadence: Esolar+ at every 3 months against Fumis AIR by Atech's every 9 months. Fumis AIR by Atech's advantage is iOS requirement (11.0 vs 13.0). 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.

Fumis AIR by Atech ships an update every 9 months, Esolar+ every 3 months. The most recent releases landed on September 14, 2026 and May 24, 2026 respectively.

## The numbers

| Metric | Fumis AIR by Atech | Esolar+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 19 MB | 90 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Atech d.o.o.](https://appshunter.io/developer/957775091) | [ESY Sunhome Co., Ltd](https://appshunter.io/developer/1670781987) |

## What reviewers say

### Fumis AIR by Atech

[App page](https://appshunter.io/ios/app/fumis-air-by-atech/id1332647394)

**Features:** macOS Compatibility

**In-app purchases:** none


### Esolar+

[App page](https://appshunter.io/ios/app/esolar-plus/id6471543863)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fumis AIR by Atech free?

Fumis AIR by Atech is free to download, with no in-app purchases.

### Is Esolar+ free?

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

### Do Fumis AIR by Atech or Esolar+ have ads?

Neither Fumis AIR by Atech nor Esolar+ shows ads.

### Which is updated more often, Fumis AIR by Atech or Esolar+?

Fumis AIR by Atech ships an update every 9 months, and Esolar+ every 3 months. Most recently, Fumis AIR by Atech was updated on September 14, 2026 and Esolar+ on May 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*