# Thermals vs Dynamic Type

The clearest difference is rating: Thermals at 4.5 against Dynamic Type's 4.0. Thermals also leads on ratings volume (28 vs 1) and chart position (#161 vs unranked). Dynamic Type's advantage is review sentiment (100% vs 83%) and iOS requirement (15.5 vs 18.6). 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.

Thermals holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Thermals has 28 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 83% of Thermals's written reviews are positive against 100% of Dynamic Type's, so the app with the better star average is not the one people write more warmly about.

Thermals ships an update every 3 months, Dynamic Type every 5 months. The most recent releases landed on September 22, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Thermals | Dynamic Type |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (28 ratings)](https://appshunter.io/ios/app/thermals/id1567050762/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/dynamic-type/id1644772082/reviews) |
| Number of ratings | **28** | 1 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Best chart rank | **#161** | — |
| Size | 3 MB | 0 MB |
| Requires iOS | 18.6 | **15.5** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [George Garside](https://appshunter.io/developer/815604170) | [Matthew Flint](https://appshunter.io/developer/675292607) |

## What reviewers say

### Thermals

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

**Currently charting:** #161 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


### Dynamic Type

[App page](https://appshunter.io/ios/app/dynamic-type/id1644772082)

This app offers developers and designers a visual reference for iOS' dynamic type system. It displays text styles at various scales, showing point sizes and percentages for accessibility and WCAG compliance.

**Highlights:** Visual representation of text styles, Dynamic Type scale previews, Point size details, Scale percentage information, Accessibility and WCAG conformance, Developer and designer reference

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermals free?

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

### Is Dynamic Type free?

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

### Which has better reviews, Thermals or Dynamic Type?

Thermals is rated higher. Thermals averages 4.5 out of 5 from 28 ratings, while Dynamic Type averages 4.0 from 1 ratings.

### Do Thermals or Dynamic Type have ads?

Neither Thermals nor Dynamic Type shows ads.

### Which is updated more often, Thermals or Dynamic Type?

Thermals ships an update every 3 months, and Dynamic Type every 5 months. Most recently, Thermals was updated on September 22, 2026 and Dynamic Type on August 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*