# TC66C vs Thermal P2

The clearest difference is monetization model: TC66C at free against Thermal P2's paid. TC66C also leads on review sentiment (33% vs 11%) and iOS requirement (9.0 vs 11.0). Thermal P2's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (27 vs 6). On price, rating, 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.

On the App Store both sit at effectively the same score — 2.0 for TC66C against 2.1 for Thermal P2. Both are backed by a comparable volume of ratings — 6 and 27 respectively. Written reviews are what separate them: 33% of TC66C's written reviews are positive against 11% of Thermal P2's.

TC66C ships an update every 2 months, Thermal P2 fortnightly. The most recent releases landed on October 16, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | TC66C | Thermal P2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (6 ratings)](https://appshunter.io/ios/app/tc66c/id1445111707/reviews) | **[2.1 (27 ratings)](https://appshunter.io/ios/app/thermal-p2/id6446384113/reviews)** |
| Number of ratings | 6 | **27** |
| Positive reviews | **33.3% of reviews** | 10.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Paid |
| Size | 37 MB | 19 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [亮亮 刘](https://appshunter.io/developer/1439150212) | [Raysen Microsystem Technology Co., Ltd.](https://appshunter.io/developer/1738384120) |

## What reviewers say

### TC66C

[App page](https://appshunter.io/ios/app/tc66c/id1445111707)

Connect to a Type-C tester via Bluetooth to view and control its data. This utility app allows for real-time monitoring and management of tester functions directly from your device.

**Highlights:** Bluetooth connectivity, Type-C tester data display, Tester control functions, Real-time monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is TC66C free?

TC66C is free to download, with no in-app purchases.

### Is Thermal P2 free?

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

### Which has better reviews, TC66C or Thermal P2?

Thermal P2 is rated higher. TC66C averages 2.0 out of 5 from 6 ratings, while Thermal P2 averages 2.1 from 27 ratings.

### Do TC66C or Thermal P2 have ads?

Neither TC66C nor Thermal P2 shows ads.

### Which is updated more often, TC66C or Thermal P2?

TC66C ships an update every 2 months, and Thermal P2 fortnightly. Most recently, TC66C was updated on October 16, 2026 and Thermal P2 on September 29, 2026.

---

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