# Thermal State — Know when your phone throttles

> Monitors iPhone thermal state and system performance metrics. (iPhone/iPad app by JONATHAN DAVID MAYFIELD.)

- Source: https://appshunter.io/ios/app/thermal-state/id6809567363 (this page in markdown: same URL + `.md`)
- Developer: [JONATHAN DAVID MAYFIELD](https://appshunter.io/developer/6809567983)
- Category: Utilities, Reference
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-10-16
- Data updated: 2026-10-26
- Monetization: free

## What is Thermal State?

Your iPhone manages heat quietly. It slows the processor, dims the screen, pauses background work, and never mentions it.

Thermal State mentions it.

The app reads the thermal state iOS itself uses to make those decisions — Nominal, Fair, Serious, Critical — and puts it on one screen, in one color, with a plain-language explanation of what the system is doing and what you are likely to notice.

ON THE SCREEN

- The current thermal state, in full color
- What that state means and what it affects
- Thermal pressure and memory pressure
- Uptime 
- Battery level and charging status
- Low Power Mode
- Processor, CPU core count, and active cores
- Physical RAM
- Radio access type
- Storage used and total capacity
- System version, device model, and locale
- The time the current state began
- An option to keep the screen awake while the app is open

COLOR SCHEMES

The four state colors are a default, not a requirement. Swap them for another palette — including one that trades green and yellow for white and cyan, for anyone who doesn't read green as calm.

WIDGETS

Home Screen: a Medium widget showing the state, its color, battery level, Low Power Mode, and uptime.

Lock Screen: inline and circular widgets, so the state is there before you unlock.

WHAT IT DOES NOT DO

It does not report degrees. iOS does not make a temperature reading available to apps. What it does make available is the four-state assessment the system acts on — which is the reading that actually predicts what your phone will do next.

It does not cool your phone down. No app can. It tells you when your phone is cooling itself, and how hard it is working at it.

PRIVACY

No account. No sign-in. Anonymous analytics only: a device identifier and interaction events, not linked to your identity and never used for tracking.

Free. No subscription, no ads, nothing to unlock.

## Key features

- Real-time thermal state monitoring
- Plain-language explanations of system actions
- Thermal and memory pressure display
- Battery level and charging status
- Device specifications overview
- Customizable color schemes
- Home and Lock Screen widgets

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Excessive | $9.99 | one-time |
| Token | $1.99 | one-time |
| Generous | $4.99 | one-time |
| Concerning | $24.99 | one-time |


## Is Thermal State safe?

Not enough ratings yet to assess Thermal State.

## Is Thermal State legit?

Thermal State has limited verification signals. The AppsHunter Legitimacy Score for Thermal State is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Thermal State

### What is the short name for Thermal State?

The short name for Thermal State is Thermal State.

### Does Thermal State have ads?

No, Thermal State is completely ad-free. It offers a clean user experience without any advertisements.

### What information does Thermal State display?

Thermal State displays the current thermal state, thermal and memory pressure, uptime, battery level, Low Power Mode status, processor details, RAM, radio access type, storage, system version, device model, locale, and the start time of the current state.

### Can Thermal State cool down my phone?

No, Thermal State cannot cool down your phone. It informs you when your phone is cooling itself and how hard it is working to do so, but it does not actively cool the device.

### Does Thermal State report exact temperature readings?

No, Thermal State does not report exact temperature readings in degrees. iOS does not make precise temperature data available to apps, but Thermal State provides the four-state assessment the system uses, which predicts the phone's next actions.

### What devices is Thermal State compatible with?

Thermal State is compatible with iPhones and iPads.

### How often is Thermal State updated?

Thermal State was last updated on October 16, 2026, with version 1.0. Future updates will likely address bug fixes and potential new features.

### What is the age rating for Thermal State?

Thermal State has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 1 release)

### 1.0 — 2026-10-16

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-26.*