# Cold Room Calculator vs SONA3

The clearest difference is update cadence: SONA3 at monthly against Cold Room Calculator's every 5 months. 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.

Cold Room Calculator ships an update every 5 months, SONA3 monthly. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Cold Room Calculator | SONA3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/cold-room-calculator/id566083556/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 2 MB | 47 MB |
| Requires iOS | 15.6 | **14.0.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LU-VE S.p.A.](https://appshunter.io/developer/1438108996) | [Alaaeldin Mohamed](https://appshunter.io/developer/1789510222) |

## What reviewers say

### Cold Room Calculator

[App page](https://appshunter.io/ios/app/cold-room-calculator/id566083556)

This tool quickly calculates the necessary cooling capacity for cold rooms. It allows users to input temperature, dimensions, insulation, heat loss, and product data to generate instant calculations. Results can be emailed for easy sharing.

**Highlights:** Calculate cooling capacity, Input temperature data, Enter cold room dimensions, Specify insulation and heat loss, Define stored product details, Email calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### SONA3

[App page](https://appshunter.io/ios/app/sona3/id6741589122)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cold Room Calculator free?

Cold Room Calculator is free to download, with no in-app purchases.

### Is SONA3 free?

SONA3 is free to download, with no in-app purchases.

### Do Cold Room Calculator or SONA3 have ads?

Neither Cold Room Calculator nor SONA3 shows ads.

### Which is updated more often, Cold Room Calculator or SONA3?

Cold Room Calculator ships an update every 5 months, and SONA3 monthly. Most recently, Cold Room Calculator was updated on October 18, 2026 and SONA3 on October 4, 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.*