# Heidler Fair Mobile vs U2D VOS 3

The clearest difference is update cadence: Heidler Fair Mobile at every 2 weeks against U2D VOS 3's every 11 months. U2D VOS 3's advantage is iOS requirement (10.0 vs 14.0). 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.

Heidler Fair Mobile ships an update every 2 weeks, U2D VOS 3 every 11 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Heidler Fair Mobile | U2D VOS 3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 11 months |
| Size | 59 MB | 8 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heidler GmbH](https://appshunter.io/developer/1094452437) | [up2date solutions GmbH](https://appshunter.io/developer/1055397154) |

## What reviewers say

### Heidler Fair Mobile

[App page](https://appshunter.io/ios/app/heidler-fair-mobile/id1167431070)

**In-app purchases:** none


### U2D VOS 3

[App page](https://appshunter.io/ios/app/u2d-vos-3/id1510986464)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Heidler Fair Mobile free?

Heidler Fair Mobile is free to download, with no in-app purchases.

### Is U2D VOS 3 free?

U2D VOS 3 is free to download, with no in-app purchases.

### Do Heidler Fair Mobile or U2D VOS 3 have ads?

Neither Heidler Fair Mobile nor U2D VOS 3 shows ads.

### Which is updated more often, Heidler Fair Mobile or U2D VOS 3?

Heidler Fair Mobile ships an update every 2 weeks, and U2D VOS 3 every 11 months. Most recently, Heidler Fair Mobile was updated on November 1, 2026 and U2D VOS 3 on November 3, 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.*