# VBus®Touch Trainer vs U

The clearest difference is update cadence: U at weekly against VBus®Touch Trainer's every 7 months. U also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. VBus®Touch Trainer sells 12 one-off in-app purchases and U sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

VBus®Touch Trainer ships an update every 7 months, U weekly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | VBus®Touch Trainer | U |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Size | 40 MB | 74 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RESOL GmbH](https://appshunter.io/developer/369420321) | [Alejandro Platas Mallo](https://appshunter.io/developer/1896316102) |

## What reviewers say

### VBus®Touch Trainer

[App page](https://appshunter.io/ios/app/vbustouch-trainer/id930456293)

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RESOL DeltaSol® BS/4 | $4.99 | one-time |
| RESOL DeltaTherm® E | $4.99 | one-time |
| RESOL DeltaSol® TT | $4.99 | one-time |
| RESOL DeltaSol® BX Plus | $9.99 | one-time |
| RESOL DeltaSol® BX | $9.99 | one-time |
| RESOL DeltaTherm® PV | $9.99 | one-time |
| RESOL DeltaTherm® PV MAX | $9.99 | one-time |
| RESOL DeltaTherm® HC Plus | $9.99 | one-time |
| RESOL DeltaSol® MX | $19.99 | one-time |
| RESOL DeltaTherm® HC MAX | $19.99 | one-time |
| RESOL FWR | $19.99 | one-time |
| SolarVenti SControl | $64.99 | one-time |


### U

[App page](https://appshunter.io/ios/app/u-manager-for-unraid/id6766693828)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| U-Manager All Access (Monthly) | $2.99 | per month |
| U-Manager All Access (Annual) | $12.99 | per year |
| Tautulli | $1.99 | one-time |
| Torrent | $2.49 | one-time |
| SSH | $3.49 | one-time |
| File browser | $4.49 | one-time |
| Power Pack | $6.99 | one-time |


## Frequently asked questions

### Is VBus®Touch Trainer free?

VBus®Touch Trainer is free to download, with in-app purchases available.

### Is U free?

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

### Do VBus®Touch Trainer or U have ads?

Neither VBus®Touch Trainer nor U shows ads.

### Which is updated more often, VBus®Touch Trainer or U?

VBus®Touch Trainer ships an update every 7 months, and U weekly. Most recently, VBus®Touch Trainer was updated on October 26, 2026 and U on October 28, 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.*