# HTMercury vs ThermView Pro

The clearest difference is update cadence: ThermView Pro at monthly against HTMercury's every 9 months. HTMercury's advantage is iOS requirement (8.0 vs 13.0). 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.

HTMercury ships an update every 9 months, ThermView Pro monthly. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | HTMercury | ThermView Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Size | 49 MB | 24 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HT Italia srl](https://appshunter.io/developer/781570829) | [Shenzhen Everbest Machinery Industry Co.,Ltd](https://appshunter.io/developer/564470332) |

## What reviewers say

### HTMercury

[App page](https://appshunter.io/ios/app/htmercury/id1387413964)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThermView Pro

[App page](https://appshunter.io/ios/app/thermview-pro/id1544011836)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HTMercury free?

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

### Is ThermView Pro free?

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

### Do HTMercury or ThermView Pro have ads?

Neither HTMercury nor ThermView Pro shows ads.

### Which is updated more often, HTMercury or ThermView Pro?

HTMercury ships an update every 9 months, and ThermView Pro monthly. Most recently, HTMercury was updated on October 17, 2026 and ThermView Pro on October 12, 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.*