# EFA vs Rex Time Switch

The clearest difference is update cadence: EFA at every 2 months against Rex Time Switch's every 18 months. Rex Time Switch's advantage is iOS requirement (10.0 vs 12.0). 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.

EFA ships an update every 2 months, Rex Time Switch every 18 months. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | EFA | Rex Time Switch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 18 months |
| Size | 36 MB | 77 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EFAFLEX Tor- und Sicherheitssysteme GmbH & Co. KG](https://appshunter.io/developer/1474594176) | [Legrand](https://appshunter.io/developer/357003650) |

## What reviewers say

### EFA

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

**Features:** Vision Pro support

**In-app purchases:** none


### Rex Time Switch

[App page](https://appshunter.io/ios/app/rex-time-switch/id1509933102)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EFA free?

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

### Is Rex Time Switch free?

Rex Time Switch is free to download, with no in-app purchases.

### Do EFA or Rex Time Switch have ads?

Neither EFA nor Rex Time Switch shows ads.

### Which is updated more often, EFA or Rex Time Switch?

EFA ships an update every 2 months, and Rex Time Switch every 18 months. Most recently, EFA was updated on September 10, 2026 and Rex Time Switch on September 14, 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.*