# Simon iO vs Leinn NEXT

The clearest difference is ads: Leinn NEXT at none against Simon iO's shown. Leinn NEXT also leads on update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, device support 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, Leinn NEXT every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simon iO | Leinn NEXT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/simon-io/id1477805916/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 77 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simon](https://appshunter.io/developer/531284305) | [SEDUNI TORCAR SL](https://appshunter.io/developer/1450163694) |

## 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


### Leinn NEXT

[App page](https://appshunter.io/ios/app/leinn-next/id6818198864)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simon iO free?

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

### Is Leinn NEXT free?

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

### Do Simon iO or Leinn NEXT have ads?

Simon iO shows ads; Leinn NEXT does not.

### Which is updated more often, Simon iO or Leinn NEXT?

Simon iO ships an update every 3 months, and Leinn NEXT every 3 weeks. Most recently, Simon iO was updated on November 3, 2026 and Leinn NEXT on October 31, 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.*