# Thermal Viewer vs CoilTrail

Thermal Viewer and CoilTrail are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Thermal Viewer sells 3 in-app purchases, starting at $4.99 per 7 days and CoilTrail sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Thermal Viewer against 5.0 for CoilTrail. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Thermal Viewer ships an update every 6 days, CoilTrail weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Thermal Viewer | CoilTrail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/thermal-viewer-ir-analyzer/id6779991634/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/coiltrail/id6782458017/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 35 MB | 90 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rush Tools LLC](https://appshunter.io/developer/1896773547) | [ANTTI-PEKKA DAVIDSSON](https://appshunter.io/developer/6782458019) |

## What reviewers say

### Thermal Viewer

[App page](https://appshunter.io/ios/app/thermal-viewer-ir-analyzer/id6779991634)

Analyze radiometric thermal images directly on your iPhone, iPad, or Mac. This app supports various thermal image formats and offers detailed temperature analysis, including spot, box, and ellipse measurements. It allows for live re-analysis and export of data and settings, all while keeping your images private and offline.

**Highlights:** Analyze radiometric thermal images, Supports multiple thermal file formats, Tap to read exact temperature, Add spot, box, ellipse, and line measurements, Live re-analysis with adjustable parameters, Visible-light blend and MSX-style overlay, Export temperature matrix to CSV, Batch export of images and settings

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Yearly | $29.99 | per year |
| Lifetime Access | $49.99 | one-time |


### CoilTrail

[App page](https://appshunter.io/ios/app/coiltrail/id6782458017)

This app helps metal detectorists log their finds and map their search areas. It records your route, logs treasure locations with photos and depth, and offers advanced mapping features. Analyze your findings and equipment performance to improve your treasure hunting success.

**Highlights:** GPS route tracking, Log finds with photos and depth, 3D LiDAR and Hillshade maps, Advanced soil and topography maps, Distance and area measuring tools, Metal detecting logbook and stats, Landowner permission logging, Export findings to CSV/PDF

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CoilTrail Pro monthly | $3.99 | per month |
| CoilTrail Cloud & Web | $4.99 | per month |
| CoilTrail Pro Yearly | $34.99 | per year |


## Frequently asked questions

### Is Thermal Viewer free?

Thermal Viewer is free to download, with in-app purchases available.

### Is CoilTrail free?

CoilTrail is free to download, with in-app purchases available.

### Which has better reviews, Thermal Viewer or CoilTrail?

Thermal Viewer and CoilTrail are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Thermal Viewer or CoilTrail have ads?

Neither Thermal Viewer nor CoilTrail shows ads.

### Which is updated more often, Thermal Viewer or CoilTrail?

Thermal Viewer ships an update every 6 days, and CoilTrail weekly. Most recently, Thermal Viewer was updated on October 28, 2026 and CoilTrail on October 25, 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.*