# De Dietrich Smart AC vs Smart Focus

The clearest difference is in-app purchases: De Dietrich Smart AC at none against Smart Focus's 3. De Dietrich Smart AC also leads on iOS requirement (14.0 vs 18.0). Smart Focus's advantage is update cadence (every 10 days vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. Smart Focus sells 3 in-app purchases, starting at $0.99 per month. De Dietrich Smart AC asks for nothing beyond the download.

De Dietrich Smart AC ships an update every 11 months, Smart Focus every 10 days. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | De Dietrich Smart AC | Smart Focus |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 203 MB | 6 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [De Dietrich Thermique](https://appshunter.io/developer/577447608) | [Stephane DEFAYE](https://appshunter.io/developer/1782119826) |

## What reviewers say

### De Dietrich Smart AC

[App page](https://appshunter.io/ios/app/de-dietrich-smart-ac/id6736655881)

Control your air conditioner remotely to adjust temperature, fan speed, and operating modes. Schedule your AC to turn on or off automatically and receive important system notifications. This app simplifies climate management for enhanced comfort and energy efficiency.

**Highlights:** Remote on/off and mode control, Temperature and fan speed adjustment, Customizable schedules and timers, Real-time maintenance and error alerts, Multi-user access, Firmware update management

**In-app purchases:** none


### Smart Focus

[App page](https://appshunter.io/ios/app/smart-focus/id6738873090)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Focus | $0.99 | per month |
| Smart Focus | $1.99 | per year |
| Smart Focus (Lifetime) | $3.99 | one-time |


## Frequently asked questions

### Is De Dietrich Smart AC free?

De Dietrich Smart AC is free to download, with no in-app purchases.

### Is Smart Focus free?

Smart Focus is free to download, with in-app purchases available.

### Do De Dietrich Smart AC or Smart Focus have ads?

Neither De Dietrich Smart AC nor Smart Focus shows ads.

### Which is updated more often, De Dietrich Smart AC or Smart Focus?

De Dietrich Smart AC ships an update every 11 months, and Smart Focus every 10 days. Most recently, De Dietrich Smart AC was updated on November 4, 2026 and Smart Focus on October 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.*