# Thermals vs UXtweak

The clearest difference is update cadence: UXtweak at monthly against Thermals's every 3 months. UXtweak also leads on iOS requirement (14.0 vs 18.6). Thermals's advantage is chart position (#190 vs unranked). On price, review sentiment, 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.

Thermals ships an update every 3 months, UXtweak monthly. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Thermals | UXtweak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (28 ratings)](https://appshunter.io/ios/app/thermals/id1567050762/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | **83.3% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Best chart rank | **#190** | — |
| Size | 3 MB | 77 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [George Garside](https://appshunter.io/developer/815604170) | [UXtweak j. s. a.](https://appshunter.io/developer/1626444865) |

## What reviewers say

### Thermals

[App page](https://appshunter.io/ios/app/thermals/id1567050762)

**Currently charting:** #190 Top Free · Developer Tools (US App Store)

Monitor your device's thermal state and processor activity to diagnose performance issues. Understand why your phone might be running slowly, charging slowly, or have reduced brightness due to overheating. Export data for further analysis with other development tools.

**Highlights:** Displays device thermal state, Shows active processor count, Monitors device uptime, Troubleshoots performance issues, Helps diagnose slow charging, Identifies brightness limitations, Exports raw data for analysis

**Features:** Apple Watch app

**In-app purchases:** none


### UXtweak

[App page](https://appshunter.io/ios/app/uxtweak/id1591900427)

Record your screen and voice while testing websites and apps to provide direct feedback. Answer questions about your user experience to help designers improve their products. Explore a sample study to understand the process.

**Highlights:** Record screen and voice feedback, Answer experience-based questions, Participate in mobile testing studies, Test website and app usability, Provide insights to designers

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Thermals free?

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

### Is UXtweak free?

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

### Do Thermals or UXtweak have ads?

Neither Thermals nor UXtweak shows ads.

### Which is updated more often, Thermals or UXtweak?

Thermals ships an update every 3 months, and UXtweak monthly. Most recently, Thermals was updated on September 22, 2026 and UXtweak on September 23, 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.*