# iSTC. vs Thermal Xplorer

The clearest difference is rating: Thermal Xplorer at 1.8 against iSTC.'s 1.5. Thermal Xplorer also leads on ratings volume (16 vs 2). iSTC.'s advantage is iOS requirement (9.0 vs 11.0). 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.

Thermal Xplorer holds the better App Store score, 1.8 against 1.5. That said, the two scores are not equally well evidenced: Thermal Xplorer has 16 ratings behind it against 2, so its average is the more settled of the two.

iSTC. ships an update every 2 months, Thermal Xplorer every 5 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | iSTC. | Thermal Xplorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/istc/id1475875977/reviews) | **[1.8 (16 ratings)](https://appshunter.io/ios/app/thermal-xplorer/id6450157809/reviews)** |
| Number of ratings | 2 | **16** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 62 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HK Meet Ltd](https://appshunter.io/developer/687246274) | [UNI-TREND TECHNOLOGY (CHINA) CO.,LTD.](https://appshunter.io/developer/1207185875) |

## What reviewers say

### iSTC.

[App page](https://appshunter.io/ios/app/istc/id1475875977)

Connect a thermal image camera to your smartphone via Wi-Fi to view live thermal feeds. Analyze temperature data, capture images, and retrieve external measurement data from compatible products.

**Highlights:** Wi-Fi connection to thermal cameras, Live thermal image viewing on phone, Max/min/point temperature display, Image capture functionality, Bluetooth external measure data retrieval

**Features:** macOS Compatibility

**In-app purchases:** none


### Thermal Xplorer

[App page](https://appshunter.io/ios/app/thermal-xplorer/id6450157809)

View real-time thermal images from compatible outdoor cameras via WiFi. This app allows for remote capture, video recording, and easy sharing of thermal imaging data, useful for both day and night observation.

**Highlights:** Real-time thermal image viewing, WiFi connection to cameras, Remote capture functionality, Video recording, Image and video sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iSTC. free?

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

### Is Thermal Xplorer free?

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

### Which has better reviews, iSTC. or Thermal Xplorer?

Thermal Xplorer is rated higher. iSTC. averages 1.5 out of 5 from 2 ratings, while Thermal Xplorer averages 1.8 from 16 ratings.

### Do iSTC. or Thermal Xplorer have ads?

Neither iSTC. nor Thermal Xplorer shows ads.

### Which is updated more often, iSTC. or Thermal Xplorer?

iSTC. ships an update every 2 months, and Thermal Xplorer every 5 weeks. Most recently, iSTC. was updated on November 3, 2026 and Thermal Xplorer on November 3, 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.*