# ThermoSphere vs ProWarm

The clearest difference is review sentiment: ThermoSphere at 30% against ProWarm's 22%. ThermoSphere also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

ThermoSphere ships an update every 13 months, ProWarm every 10 months. The most recent releases landed on June 1, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | ThermoSphere | ProWarm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/prowarm/id1445396744/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **30.0% of reviews** | 21.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 10 months** |
| Monetization | Free | Free |
| Size | 167 MB | 191 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Thermogroup UK](https://appshunter.io/developer/915777303) | [ProWarm](https://appshunter.io/developer/889884452) |

## What reviewers say

### ThermoSphere

[App page](https://appshunter.io/ios/app/thermosphere/id1435864290)

Easily manage your ThermoSphere electric heating devices from anywhere in the world. Control heating manually, set intelligent schedules, and access device settings all from your smartphone.

**Highlights:** Remote device control, Heating schedule creation, Manual control options, Access device settings, Compatible with various ThermoSphere devices

**In-app purchases:** none


### ProWarm

[App page](https://appshunter.io/ios/app/prowarm/id1445396744)

Control your underfloor heating system remotely with this app. It offers effortless and intelligent management for convenience and efficiency, putting full heating control at your fingertips anytime, anywhere.

**Highlights:** Effortless control, Intelligent heating management, Remote access, Anytime, anywhere control, Modern living integration

**In-app purchases:** none


## Frequently asked questions

### Is ThermoSphere free?

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

### Is ProWarm free?

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

### Do ThermoSphere or ProWarm have ads?

Neither ThermoSphere nor ProWarm shows ads.

### Which is updated more often, ThermoSphere or ProWarm?

ThermoSphere ships an update every 13 months, and ProWarm every 10 months. Most recently, ThermoSphere was updated on June 1, 2026 and ProWarm on June 9, 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.*