# TAS Viewer vs TranityLink

TAS Viewer and TranityLink are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

TAS Viewer ships an update every 2 months, TranityLink every 3 months. The most recent releases landed on November 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TAS Viewer | TranityLink |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 32 MB | 280 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [红杰 李](https://appshunter.io/developer/1602186097) | [WHST HEBEI Co., Ltd.](https://appshunter.io/developer/1778653640) |

## 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


### TranityLink

[App page](https://appshunter.io/ios/app/tranitylink/id6757784769)

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

**In-app purchases:** none


## Frequently asked questions

### Is TAS Viewer free?

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

### Is TranityLink free?

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

### Do TAS Viewer or TranityLink have ads?

Neither TAS Viewer nor TranityLink shows ads.

### Which is updated more often, TAS Viewer or TranityLink?

TAS Viewer ships an update every 2 months, and TranityLink every 3 months. Most recently, TAS Viewer was updated on November 3, 2026 and TranityLink on October 7, 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.*