# TRA Mobile Application vs U.I

The clearest difference is iOS requirement: TRA Mobile Application at 11.0 against U.I's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

TRA Mobile Application ships an update every 18 months, U.I every 22 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | TRA Mobile Application | U.I |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 22 months |
| Size | 47 MB | 117 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [WELA.ONLINE CORP.](https://appshunter.io/developer/1621972441) | [Lecturio GmbH](https://appshunter.io/developer/667474928) |

## What reviewers say

### TRA Mobile Application

[App page](https://appshunter.io/ios/app/tra-mobile-application/id1629374483)

**Features:** macOS Compatibility

**In-app purchases:** none


### U.I

[App page](https://appshunter.io/ios/app/ui-phinma-lecturio/id6738203975)

**In-app purchases:** none


## Frequently asked questions

### Is TRA Mobile Application free?

TRA Mobile Application is free to download, with no in-app purchases.

### Is U.I free?

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

### Do TRA Mobile Application or U.I have ads?

Neither TRA Mobile Application nor U.I shows ads.

### Which is updated more often, TRA Mobile Application or U.I?

TRA Mobile Application ships an update every 18 months, and U.I every 22 months. Most recently, TRA Mobile Application was updated on October 13, 2026 and U.I on October 16, 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.*