# Symphony by GeoStar vs Shelly Smart Control

The clearest difference is review sentiment: Shelly Smart Control at 48% against Symphony by GeoStar's 0%. Shelly Smart Control also leads on rating (3.1 vs 2.0) and update cadence (every 2 weeks vs every 4 months). 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.

Shelly Smart Control holds the better App Store score, 3.1 against 2.0. That said, the two scores are not equally well evidenced: Shelly Smart Control has 89 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Symphony by GeoStar's written reviews are positive against 48% of Shelly Smart Control's.

Symphony by GeoStar ships an update every 4 months, Shelly Smart Control every 2 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Symphony by GeoStar | Shelly Smart Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/symphony-by-geostar/id1161399121/reviews) | **[3.1 (89 ratings)](https://appshunter.io/ios/app/shelly-smart-control/id1660045967/reviews)** |
| Number of ratings | 4 | **89** |
| Positive reviews | 0.0% of reviews | **47.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 258 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [WaterFurnace International](https://appshunter.io/developer/940139733) | [SHELLY EUROPE EOOD](https://appshunter.io/developer/1521653049) |

## What reviewers say

### Symphony by GeoStar

[App page](https://appshunter.io/ios/app/symphony-by-geostar/id1161399121)

Control and monitor your geothermal comfort system remotely. View real-time system feedback, track energy usage, and receive alerts for maintenance. Access your entire geothermal system, not just the thermostat, from any internet-connected device.

**Highlights:** Remote system monitoring, Real-time feedback, Temperature and program control, Energy usage tracking, Equipment alerts and reminders, Cloud-based access

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

**In-app purchases:** none


### Shelly Smart Control

[App page](https://appshunter.io/ios/app/shelly-smart-control/id1660045967)

Remotely monitor and control smart home devices from anywhere, either through the cloud or your local network. Manage lights, appliances, and sensors, and create custom automation scenes. Supports Wi-Fi, Bluetooth, and LAN connectivity for seamless integration.

**Highlights:** Remote device control, Local network control, Device monitoring, Custom scheduling, Scene creation, Energy consumption monitoring, Real-time alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Symphony by GeoStar free?

Symphony by GeoStar is free to download, with no in-app purchases.

### Is Shelly Smart Control free?

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

### Which has better reviews, Symphony by GeoStar or Shelly Smart Control?

Shelly Smart Control is rated higher. Symphony by GeoStar averages 2.0 out of 5 from 4 ratings, while Shelly Smart Control averages 3.1 from 89 ratings.

### Do Symphony by GeoStar or Shelly Smart Control have ads?

Neither Symphony by GeoStar nor Shelly Smart Control shows ads.

### Which is updated more often, Symphony by GeoStar or Shelly Smart Control?

Symphony by GeoStar ships an update every 4 months, and Shelly Smart Control every 2 weeks. Most recently, Symphony by GeoStar was updated on October 24, 2026 and Shelly Smart Control on October 29, 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.*