# Thermal P2 vs Temp Master

The clearest difference is rating: Temp Master at 3.2 against Thermal P2's 2.1. Temp Master also leads on monetization model (free vs paid) and review sentiment (40% vs 11%). Thermal P2's advantage is update cadence (fortnightly vs every 5 weeks). On price, ratings volume, 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.

Temp Master holds the better App Store score, 3.2 against 2.1. Both are backed by a comparable volume of ratings — 27 and 12 respectively. Written reviews point the same way: 11% of Thermal P2's written reviews are positive against 40% of Temp Master's.

Thermal P2 ships an update fortnightly, Temp Master every 5 weeks. The most recent releases landed on September 16, 2026 and August 9, 2026 respectively.

## The numbers

| Metric | Thermal P2 | Temp Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (27 ratings)](https://appshunter.io/ios/app/thermal-p2/id6446384113/reviews) | **[3.2 (12 ratings)](https://appshunter.io/ios/app/temp-master/id6737321665/reviews)** |
| Number of ratings | **27** | 12 |
| Positive reviews | 10.7% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Paid | **Free** |
| Size | 19 MB | 43 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Raysen Microsystem Technology Co., Ltd.](https://appshunter.io/developer/1738384120) | [Thermal Master Technology Co.,Ltd.](https://appshunter.io/developer/1770222118) |

## What reviewers say

### Thermal P2

[App page](https://appshunter.io/ios/app/thermal-p2/id6446384113)

This professional thermal camera connects to your smartphone for plug-and-play temperature measurement. It's ideal for both personal and industrial use, from inspecting household utilities to diagnosing equipment issues.

**Highlights:** Ultra-small professional thermal camera, 12μm high-performance infrared detector, Self-developed ASIC chip, Compact size, lightweight, low power consumption, Plug-and-play smartphone connection, Accurate temperature measurement, Heat map analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Temp Master

[App page](https://appshunter.io/ios/app/temp-master/id6737321665)

This utility app enhances thermal imaging capabilities for compatible Thermal Master devices, offering precise temperature detection and advanced image analysis. It allows users to view, save, and export thermal data offline, with features like digital zoom and improved resolution for various inspection tasks.

**Highlights:** High-accuracy temperature detection, Enhanced infrared resolution, Offline data viewing and export, Up to 15x digital zoom, Reduced background noise, Long battery life optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermal P2 free?

Thermal P2 is free to download, with no in-app purchases.

### Is Temp Master free?

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

### Which has better reviews, Thermal P2 or Temp Master?

Temp Master is rated higher. Thermal P2 averages 2.1 out of 5 from 27 ratings, while Temp Master averages 3.2 from 12 ratings.

### Do Thermal P2 or Temp Master have ads?

Neither Thermal P2 nor Temp Master shows ads.

### Which is updated more often, Thermal P2 or Temp Master?

Thermal P2 ships an update fortnightly, and Temp Master every 5 weeks. Most recently, Thermal P2 was updated on September 16, 2026 and Temp Master on August 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.*