# Altay Köln vs Delta

The clearest difference is update cadence: Delta at every 8 days against Altay Köln's every 22 months. Altay Köln's advantage is iOS requirement (11.0 vs 16.6). 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.

Altay Köln ships an update every 22 months, Delta every 8 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Altay Köln | Delta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 8 days** |
| Size | 24 MB | 66 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 17+ |
| Developer | [Altay GmbH](https://appshunter.io/developer/1456268143) | [Delta-A Business Services GmbH](https://appshunter.io/developer/1833900778) |

## What reviewers say

### Altay Köln

[App page](https://appshunter.io/ios/app/altay-koln/id1555062036)

**Features:** macOS Compatibility

**In-app purchases:** none


### Delta

[App page](https://appshunter.io/ios/app/delta-a-cloud-office-dco/id6751192085)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Altay Köln free?

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

### Is Delta free?

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

### Do Altay Köln or Delta have ads?

Neither Altay Köln nor Delta shows ads.

### Which is updated more often, Altay Köln or Delta?

Altay Köln ships an update every 22 months, and Delta every 8 days. Most recently, Altay Köln was updated on November 3, 2026 and Delta on November 5, 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.*