# Smart vs Heimgard Door

The clearest difference is update cadence: Heimgard Door at every 8 days against Smart's every 2 months. Smart's advantage is iOS requirement (12.0 vs 16.0). 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.

Smart ships an update every 2 months, Heimgard Door every 8 days. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Smart | Heimgard Door |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/smart-e/id1229005370/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 6 MB | 56 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [saswell](https://appshunter.io/developer/943287508) | [Heimgard Technologies AS](https://appshunter.io/developer/1332994493) |

## What reviewers say

### Smart

[App page](https://appshunter.io/ios/app/smart-e/id1229005370)

Control your home thermostat and gateway remotely or directly. Manage basic functions like power, energy saving, and temperature. Specific features adapt to your thermostat model.

**Highlights:** Direct thermostat control, Remote thermostat control, Gateway control, Power management, Energy conservation settings, Temperature adjustment

**Features:** macOS Compatibility

**In-app purchases:** none


### Heimgard Door

[App page](https://appshunter.io/ios/app/heimgard-door/id6759647852)

**In-app purchases:** none


## Frequently asked questions

### Is Smart free?

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

### Is Heimgard Door free?

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

### Do Smart or Heimgard Door have ads?

Neither Smart nor Heimgard Door shows ads.

### Which is updated more often, Smart or Heimgard Door?

Smart ships an update every 2 months, and Heimgard Door every 8 days. Most recently, Smart was updated on October 13, 2026 and Heimgard Door on October 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.*