# By vs Caleffi Code

The clearest difference is review sentiment: Caleffi Code at 24% against By's 0%. Caleffi Code also leads on update cadence (every 3 months vs every 7 months). On price, ads, in-app purchases and monetization model 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 7 months, Caleffi Code every 3 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | By | Caleffi Code |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **23.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 8 MB | 195 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vimar S.p.A.](https://appshunter.io/developer/401438010) | [Caleffi S.p.A](https://appshunter.io/developer/920722440) |

## What reviewers say

### By

[App page](https://appshunter.io/ios/app/by-clima/id893553317)

Control and program smart home climate devices remotely. Manage touch timers and thermostats from your smartphone for convenient temperature regulation and energy monitoring.

**Highlights:** Program touch timer-thermostats, Local supervision of devices, Remote supervision of devices, Control Clima&Energy devices, Smartphone integration, Energy monitoring

**In-app purchases:** none


### Caleffi Code

[App page](https://appshunter.io/ios/app/caleffi-code/id1510312307)

Control your home's heating system remotely to optimize energy consumption and maintain comfort. Program temperatures room by room, adjust settings on the fly, and utilize special functions for events or absences.

**Highlights:** Remote temperature management, Room-by-room programming, Energy consumption optimization, Real-time monitoring, Customizable heating schedules, Boost and Eco functions

**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 Caleffi Code free?

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

### Do By or Caleffi Code have ads?

Neither By nor Caleffi Code shows ads.

### Which is updated more often, By or Caleffi Code?

By ships an update every 7 months, and Caleffi Code every 3 months. Most recently, By was updated on September 21, 2026 and Caleffi Code on September 24, 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.*