# protel Air vs Stockrooms by Oomnitza

The clearest difference is device support: protel Air at 3 against Stockrooms by Oomnitza's 1. 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.

protel Air ships an update every 2 months, Stockrooms by Oomnitza every 3 months. The most recent releases landed on June 5, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | protel Air | Stockrooms by Oomnitza |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 18 MB | 11 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [protel hotelsoftware GmbH](https://appshunter.io/developer/417393124) | [Oomnitza Inc.](https://appshunter.io/developer/508221935) |

## What reviewers say

### protel Air

[App page](https://appshunter.io/ios/app/protel-air/id455185874)

**In-app purchases:** none


### Stockrooms by Oomnitza

[App page](https://appshunter.io/ios/app/stockrooms-by-oomnitza/id1503300039)

**In-app purchases:** none


## Frequently asked questions

### Is protel Air free?

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

### Is Stockrooms by Oomnitza free?

Stockrooms by Oomnitza is free to download, with no in-app purchases.

### Do protel Air or Stockrooms by Oomnitza have ads?

Neither protel Air nor Stockrooms by Oomnitza shows ads.

### Which is updated more often, protel Air or Stockrooms by Oomnitza?

protel Air ships an update every 2 months, and Stockrooms by Oomnitza every 3 months. Most recently, protel Air was updated on June 5, 2026 and Stockrooms by Oomnitza on September 8, 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.*