# IR vs ThermalSight

The clearest difference is iOS requirement: IR at 8.0 against ThermalSight's 15.0. 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.

IR ships an update every 4 months, ThermalSight every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | IR | ThermalSight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/ir-tracker-iii/id1527965840/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 12 MB | 36 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [zhejiang dali technology co.,ltd](https://appshunter.io/developer/329436737) | [Shenzhen Everbest Machinery Industry Co.,Ltd](https://appshunter.io/developer/564470332) |

## What reviewers say

### IR

[App page](https://appshunter.io/ios/app/ir-tracker-iii/id1527965840)

This handheld monocular uses infrared thermal imaging to provide clear vision in low light or complete darkness. Its compact and rugged design is ideal for outdoor activities like searching, rescuing, and hiking.

**Highlights:** Infrared thermal imaging, Handheld monocular design, Professional display eyepiece, Low visibility operation, Compact and rugged construction, Outdoor use suitability

**In-app purchases:** none


### ThermalSight

[App page](https://appshunter.io/ios/app/thermalsight/id6473887919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IR free?

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

### Is ThermalSight free?

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

### Do IR or ThermalSight have ads?

Neither IR nor ThermalSight shows ads.

### Which is updated more often, IR or ThermalSight?

IR ships an update every 4 months, and ThermalSight every 2 months. Most recently, IR was updated on November 3, 2026 and ThermalSight on November 4, 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.*