# e vs Airtouch 4

The clearest difference is update cadence: Airtouch 4 at every 2 weeks against e's every 4 months. Airtouch 4 also leads on iOS requirement (12.0 vs 15.0). On price, review sentiment, ads 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.

e ships an update every 4 months, Airtouch 4 every 2 weeks. The most recent releases landed on September 26, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | e | Airtouch 4 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **23.1% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 48 MB | 15 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Advantage Air Aust Pty Ltd](https://appshunter.io/developer/481563586) | [Polyaire](https://appshunter.io/developer/514556247) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-zone/id925994857)

Remotely manage your Advantage Air e-zone air-conditioning system from any location. Requires an internet-connected e-zone system and initial setup within your home Wi-Fi. Explore dealer options on the Advantage Air website.

**Highlights:** Remote air-conditioning control, Global access, Wi-Fi connectivity required, System setup assistance

**In-app purchases:** none


### Airtouch 4

[App page](https://appshunter.io/ios/app/airtouch-4/id1441734319)

Manage your AirTouch4 zoning system and compatible air conditioners remotely from your iOS device. Effortlessly control airflow, temperature, and schedules for every zone in your home.

**Highlights:** Remote AC control, Zone on/off, Adjust airflow, Set temperature, Program schedules, Create scenes, Name zones

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

**In-app purchases:** none


## Frequently asked questions

### Is e free?

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

### Is Airtouch 4 free?

Airtouch 4 is free to download, with no in-app purchases.

### Do e or Airtouch 4 have ads?

Neither e nor Airtouch 4 shows ads.

### Which is updated more often, e or Airtouch 4?

e ships an update every 4 months, and Airtouch 4 every 2 weeks. Most recently, e was updated on September 26, 2026 and Airtouch 4 on September 2, 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.*