# Smart vs Sunred

The clearest difference is ads: Smart at none against Sunred's shown. Smart also leads on update cadence (every 2 months vs every 7 months) and review sentiment (17% vs 0%). On price, 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, Sunred every 7 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Smart | Sunred |
| --- | --- | --- |
| 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** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | **Free** | Ad-supported |
| Size | 6 MB | 57 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [saswell](https://appshunter.io/developer/943287508) | [OutTrade BV](https://appshunter.io/developer/1503167879) |

## 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


### Sunred

[App page](https://appshunter.io/ios/app/sunred/id1503167880)

Take full control of your outdoor heating experience with this app. Connect and remotely manage your wireless supported heaters, adjusting power settings, timers, and monitoring real-time temperature information.

**Highlights:** Remote device control, Adjust power settings, Set timers, Monitor real-time temperature, Quick device overview

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart free?

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

### Is Sunred free?

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

### Do Smart or Sunred have ads?

Sunred shows ads; Smart does not.

### Which is updated more often, Smart or Sunred?

Smart ships an update every 2 months, and Sunred every 7 months. Most recently, Smart was updated on October 4, 2026 and Sunred on October 1, 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.*