# By vs Simon Plug&Drive

The clearest difference is update cadence: Simon Plug&Drive at every 2 months against By's every 4 months. By's advantage is iOS requirement (9.0 vs 15.6). 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.

By ships an update every 4 months, Simon Plug&Drive every 2 months. The most recent releases landed on June 11, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | By | Simon Plug&Drive |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 41 MB | 63 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VIMAR Spa](https://appshunter.io/developer/401438010) | [Simon](https://appshunter.io/developer/531284305) |

## What reviewers say

### By

[App page](https://appshunter.io/ios/app/by-web/id479235916)

Control your home automation system remotely. Manage lighting, climate, and security from your smartphone or tablet, whether you're at home or away. Requires specific hardware for Vimar By-me or KNX systems.

**Highlights:** Remote system supervision, Control via LAN/Wi-Fi, Control via 3G/Internet, User-friendly icons, Optimized access speed, iOS 13+ localization settings

**In-app purchases:** none


### Simon Plug&Drive

[App page](https://appshunter.io/ios/app/simon-plug-and-drive/id1633641300)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is By free?

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

### Is Simon Plug&Drive free?

Simon Plug&Drive is free to download, with no in-app purchases.

### Do By or Simon Plug&Drive have ads?

Neither By nor Simon Plug&Drive shows ads.

### Which is updated more often, By or Simon Plug&Drive?

By ships an update every 4 months, and Simon Plug&Drive every 2 months. Most recently, By was updated on June 11, 2026 and Simon Plug&Drive on September 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.*