# By vs Riello PV

By and Riello PV are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, Riello PV every 3 months. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | By | Riello PV |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 41 MB | 54 MB |
| Requires iOS | 9.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vimar S.p.A.](https://appshunter.io/developer/401438010) | [RPS S.p.a.](https://appshunter.io/developer/540356321) |

## 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


### Riello PV

[App page](https://appshunter.io/ios/app/riello-pv/id1465220256)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is By free?

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

### Is Riello PV free?

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

### Do By or Riello PV have ads?

Neither By nor Riello PV shows ads.

### Which is updated more often, By or Riello PV?

By ships an update every 4 months, and Riello PV every 3 months. Most recently, By was updated on October 20, 2026 and Riello PV on October 25, 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.*