# Sunster vs AirHeater

The clearest difference is rating: Sunster at 3.0 against AirHeater's 2.0. Sunster also leads on update cadence (every 2 weeks vs every 5 months) and ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sunster holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Sunster ships an update every 2 weeks, AirHeater every 5 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Sunster | AirHeater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/sunster/id6745934134/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/airheater/id6748662396/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 58 MB | 11 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [江苏百易德电子科技有限公司](https://appshunter.io/developer/1812800118) | [力 李](https://appshunter.io/developer/1787815453) |

## What reviewers say

### Sunster

[App page](https://appshunter.io/ios/app/sunster/id6745934134)

Control your RV's parking air conditioning and heater remotely from your mobile device. Manage multiple devices with customizable scenes and receive real-time safety notifications for peace of mind.

**Highlights:** Remote climate control, Multi-device compatibility, Customizable scene control, Real-time safety notifications, Encrypted data transmission, Dual-factor authentication

**In-app purchases:** none


### AirHeater

[App page](https://appshunter.io/ios/app/airheater/id6748662396)

Control your parking heater system remotely via Bluetooth. Turn the unit on/off, monitor its status, set timers, and adjust operating parameters directly from your mobile device.

**Highlights:** Remote on/off control, Real-time operating status, Timed on/off settings, Synchronize operation time, Configure main unit parameters

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sunster free?

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

### Is AirHeater free?

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

### Which has better reviews, Sunster or AirHeater?

Sunster is rated higher. Sunster averages 3.0 out of 5 from 4 ratings, while AirHeater averages 2.0 from 1 ratings.

### Do Sunster or AirHeater have ads?

Neither Sunster nor AirHeater shows ads.

### Which is updated more often, Sunster or AirHeater?

Sunster ships an update every 2 weeks, and AirHeater every 5 months. Most recently, Sunster was updated on October 24, 2026 and AirHeater on October 28, 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.*