# Optix C2 vs Thermal Scope

The clearest difference is update cadence: Optix C2 at every 2 months against Thermal Scope's every 3 months. Optix C2 also leads on iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Optix C2 ships an update every 2 months, Thermal Scope every 3 months. The most recent releases landed on September 19, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Optix C2 | Thermal Scope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 264 MB | 18 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitehog](https://appshunter.io/developer/1636262722) | [Software Shop](https://appshunter.io/developer/1288503758) |

## What reviewers say

### Optix C2

[App page](https://appshunter.io/ios/app/optix-c2/id6479258403)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thermal Scope

[App page](https://appshunter.io/ios/app/thermal-scope/id6755324605)

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

**In-app purchases:** none


## Frequently asked questions

### Is Optix C2 free?

Optix C2 is free to download, with no in-app purchases.

### Is Thermal Scope free?

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

### Do Optix C2 or Thermal Scope have ads?

Neither Optix C2 nor Thermal Scope shows ads.

### Which is updated more often, Optix C2 or Thermal Scope?

Optix C2 ships an update every 2 months, and Thermal Scope every 3 months. Most recently, Optix C2 was updated on September 19, 2026 and Thermal Scope on September 28, 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.*