# By vs Perry Home

The clearest difference is update cadence: Perry Home at every 6 weeks against By's every 4 months. By's advantage is iOS requirement (9.0 vs 15.0). 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.

By ships an update every 4 months, Perry Home every 6 weeks. Both last shipped on October 20, 2026.

## The numbers

| Metric | By | Perry Home |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 41 MB | 25 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vimar S.p.A.](https://appshunter.io/developer/401438010) | [Perry Electric S.r.l.](https://appshunter.io/developer/1236757168) |

## 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


### Perry Home

[App page](https://appshunter.io/ios/app/perry-home/id6449975706)

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

**In-app purchases:** none


## Frequently asked questions

### Is By free?

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

### Is Perry Home free?

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

### Do By or Perry Home have ads?

Neither By nor Perry Home shows ads.

### Which is updated more often, By or Perry Home?

By ships an update every 4 months, and Perry Home every 6 weeks. Most recently, By was updated on October 20, 2026 and Perry Home on October 20, 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.*