# DLR eFlight vs AZF

The clearest difference is update cadence: DLR eFlight at every 2 days against AZF's every 3 months. DLR eFlight also leads on iOS requirement (12.0 vs 15.6). 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.

DLR eFlight ships an update every 2 days, AZF every 3 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DLR eFlight | AZF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 388 MB | 25 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DLR German Aerospace Center e.V.](https://appshunter.io/developer/418202933) | [Eugen Reimer](https://appshunter.io/developer/1838715488) |

## What reviewers say

### DLR eFlight

[App page](https://appshunter.io/ios/app/dlr-eflight/id1552361763)

**In-app purchases:** none


### AZF

[App page](https://appshunter.io/ios/app/azf-flugfunkzeugnis/id6766111478)

**In-app purchases:** none


## Frequently asked questions

### Is DLR eFlight free?

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

### Is AZF free?

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

### Do DLR eFlight or AZF have ads?

Neither DLR eFlight nor AZF shows ads.

### Which is updated more often, DLR eFlight or AZF?

DLR eFlight ships an update every 2 days, and AZF every 3 months. Most recently, DLR eFlight was updated on October 7, 2026 and AZF on October 15, 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.*