# TAS Viewer vs Thermal Effect

The clearest difference is review sentiment: TAS Viewer at 100% against Thermal Effect's 22%. TAS Viewer also leads on in-app purchases (none vs 2). Thermal Effect's advantage is update cadence (daily vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Thermal Effect sells 2 in-app purchases, starting at $4.99 per 7 days. TAS Viewer asks for nothing beyond the download.

TAS Viewer ships an update every 2 months, Thermal Effect daily. The most recent releases landed on September 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | TAS Viewer | Thermal Effect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (155 ratings)](https://appshunter.io/ios/app/thermal-effect-night-camera/id6480454416/reviews)** |
| Number of ratings | — | **155** |
| Positive reviews | **100.0% of reviews** | 22.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Subscription |
| Size | 32 MB | 6 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [红杰 李](https://appshunter.io/developer/1602186097) | [Taalaibek Abakirov](https://appshunter.io/developer/1845047526) |

## What reviewers say

### TAS Viewer

[App page](https://appshunter.io/ios/app/tas-viewer/id1605567151)

This application provides tools for the secondary analysis of infrared imaging data. It allows users to examine and interpret thermal images for various purposes.

**Highlights:** Infrared imaging secondary analysis, Thermal image interpretation, Data examination tools

**Features:** macOS Compatibility

**In-app purchases:** none


### Thermal Effect

[App page](https://appshunter.io/ios/app/thermal-effect-night-camera/id6480454416)

Explore the world through a thermal lens with this app. It transforms your photos and videos with various heat vision effects, emulating different thermal imaging devices. Easily create and share unique visual content.

**Highlights:** Thermal imaging effects, Heat vision filters, Multiple viewing modes, Photo and video enhancement, Easy to use interface, Share creations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thermal Effects Weekly Trial | $4.99 | per 7 days |
| Thermal Effects Weekly Promo | $4.99 | per 7 days |


## Frequently asked questions

### Is TAS Viewer free?

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

### Is Thermal Effect free?

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

### Do TAS Viewer or Thermal Effect have ads?

Neither TAS Viewer nor Thermal Effect shows ads.

### Which is updated more often, TAS Viewer or Thermal Effect?

TAS Viewer ships an update every 2 months, and Thermal Effect daily. Most recently, TAS Viewer was updated on September 15, 2026 and Thermal Effect on October 10, 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.*