# Simon iO vs Clesyde

The clearest difference is ads: Clesyde at none against Simon iO's shown. Clesyde also leads on device support (4 vs 2). Simon iO's advantage is update cadence (every 3 months vs every 8 months). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Simon iO ships an update every 3 months, Clesyde every 8 months. The most recent releases landed on July 7, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Simon iO | Clesyde |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/simon-io/id1477805916/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 206 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Simon](https://appshunter.io/developer/531284305) | [Clesyde SA](https://appshunter.io/developer/1772936807) |

## What reviewers say

### Simon iO

[App page](https://appshunter.io/ios/app/simon-io/id1477805916)

Control your smart home devices, including lights and blinds, from anywhere. Receive notifications, schedule routines, and customize device functionalities like lighting levels and power control. This app enhances your iO universe with a world of possibilities.

**Highlights:** Configure iO devices and experiences, Control lights and blinds, Receive notifications, Schedule routines, Adjust lighting levels, Power control for devices

**Features:** macOS Compatibility

**In-app purchases:** none


### Clesyde

[App page](https://appshunter.io/ios/app/clesyde/id6445945241)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is Simon iO free?

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

### Is Clesyde free?

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

### Do Simon iO or Clesyde have ads?

Simon iO shows ads; Clesyde does not.

### Which is updated more often, Simon iO or Clesyde?

Simon iO ships an update every 3 months, and Clesyde every 8 months. Most recently, Simon iO was updated on July 7, 2026 and Clesyde on September 16, 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.*