# EFA vs ENGEL e

The clearest difference is update cadence: EFA at every 2 months against ENGEL e's every 7 months. EFA also leads on device support and iOS requirement (12.0 vs 14.0). On price 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.

EFA ships an update every 2 months, ENGEL e every 7 months. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | EFA | ENGEL e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 2 months** | Every 7 months |
| Size | 36 MB | 18 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [EFAFLEX Tor- und Sicherheitssysteme GmbH & Co. KG](https://appshunter.io/developer/1474594176) | [ENGEL AUSTRIA GmbH](https://appshunter.io/developer/687631542) |

## What reviewers say

### EFA

[App page](https://appshunter.io/ios/app/efa-smartconnect/id1474594177)

**Features:** Vision Pro support

**In-app purchases:** none


### ENGEL e

[App page](https://appshunter.io/ios/app/engel-e-vent/id6449192345)

**In-app purchases:** none


## Frequently asked questions

### Is EFA free?

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

### Is ENGEL e free?

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

### Which is updated more often, EFA or ENGEL e?

EFA ships an update every 2 months, and ENGEL e every 7 months. Most recently, EFA was updated on September 10, 2026 and ENGEL e 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.*