# Calex Smart vs F

The clearest difference is device support: Calex Smart at 4 against F's 1. Calex Smart also leads on iOS requirement (14.0 vs 16.0). 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.

Calex Smart ships an update every 2 months, F every 3 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Calex Smart | F |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (35 ratings)](https://appshunter.io/ios/app/calex-smart/id1471978691/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 33.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 256 MB | 1 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Electro Cirkel Retail B.V](https://appshunter.io/developer/1461044589) | [FLY & RESCUE](https://appshunter.io/developer/1681997822) |

## What reviewers say

### Calex Smart

[App page](https://appshunter.io/ios/app/calex-smart/id1471978691)

Control your smart lights and appliances with ease. Automate your devices using smart routines for seamless on/off control. Enjoy plug-and-play installation via WiFi without needing an extra hub.

**Highlights:** Control smart lights and appliances, Create smart routines, Plug and Play WiFi installation, No additional gateway needed

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Good value for money
- 👍 Intuitive and flexible app
- 💡 Lights work well
- 💡 Easy to use app
- 💡 Good control over brightness and hue

**What reviewers complain about**

- 🐛 Frequent connection issues
- 🐛 App crashes frequently
- 🐛 Difficult device pairing
- 🐛 Poor integration with Apple Home
- 🐛 Devices go offline randomly

**Reported bugs**

- App crashes when changing color
- App crashes on iPhone
- App keeps crashing or losing connection
- App loses connection for no reason
- Devices go offline and won't reconnect

**Requested features**

- Widget support for Home Screen
- Dark mode
- Better Apple HomeKit integration
- Create widgets for iPhone Home Screen
- Integrate with Apple Shortcuts for custom automation


### F

[App page](https://appshunter.io/ios/app/f-gdgu-performance/id6448870788)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calex Smart free?

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

### Is F free?

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

### Do Calex Smart or F have ads?

Neither Calex Smart nor F shows ads.

### Which is updated more often, Calex Smart or F?

Calex Smart ships an update every 2 months, and F every 3 months. Most recently, Calex Smart was updated on October 17, 2026 and F on October 18, 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.*