# TT vs vetTool

The clearest difference is update cadence: vetTool at monthly against TT's every 2 months. vetTool also leads on iOS requirement (13.0 vs 15.6). 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.

TT ships an update every 2 months, vetTool monthly. The most recent releases landed on September 6, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | TT | vetTool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 11 MB | 168 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [田 张](https://appshunter.io/developer/1766038243) | [京儒 李](https://appshunter.io/developer/6777856990) |

## What reviewers say

### TT

[App page](https://appshunter.io/ios/app/tt-ots100/id6747674762)

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

**In-app purchases:** none


### vetTool

[App page](https://appshunter.io/ios/app/vettool/id6761403832)

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

**In-app purchases:** none


## Frequently asked questions

### Is TT free?

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

### Is vetTool free?

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

### Do TT or vetTool have ads?

Neither TT nor vetTool shows ads.

### Which is updated more often, TT or vetTool?

TT ships an update every 2 months, and vetTool monthly. Most recently, TT was updated on September 6, 2026 and vetTool on August 13, 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.*