# T vs OTA upgrade

The clearest difference is iOS requirement: T at 10.0 against OTA upgrade's 12.1. 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.

## The numbers

| Metric | T | OTA upgrade |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 14 MB | 39 MB |
| Requires iOS | **10.0** | 12.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [京都機械工具株式会社](https://appshunter.io/developer/1193934430) | [HUIZHOU REDBOX ELECTRONICS CO,.LTD](https://appshunter.io/developer/1693036399) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-update-tool/id1446841958)

**In-app purchases:** none


### OTA upgrade

[App page](https://appshunter.io/ios/app/ota-upgrade/id6450377634)

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

**In-app purchases:** none


## Frequently asked questions

### Is T free?

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

### Is OTA upgrade free?

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

### Do T or OTA upgrade have ads?

Neither T nor OTA upgrade shows ads.

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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.*