# HyTools vs BERTRAM

The clearest difference is update cadence: BERTRAM at every 9 days against HyTools's every 6 weeks. 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.

HyTools ships an update every 6 weeks, BERTRAM every 9 days. The most recent releases landed on September 28, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | HyTools | BERTRAM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/hytools/id537674477/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 114 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMI Hydronic Engineering International SA](https://appshunter.io/developer/508015425) | [digital cuisine GmbH & Co. KG](https://appshunter.io/developer/1718702628) |

## What reviewers say

### HyTools

[App page](https://appshunter.io/ios/app/hytools/id537674477)

This app provides HVAC professionals with a comprehensive suite of hydronic calculation tools. It assists with tasks like valve sizing, pressure drop calculations, and radiator power estimation. The tool offers unit conversion and language selection for user convenience.

**Highlights:** Hydronic calculator, Valve sizing and presetting, Radiator power estimation, Pipe sizing, Unit conversion, Pressure maintenance calculation

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

**In-app purchases:** none


### BERTRAM

[App page](https://appshunter.io/ios/app/bertram/id6779649965)

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

**In-app purchases:** none


## Frequently asked questions

### Is HyTools free?

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

### Is BERTRAM free?

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

### Do HyTools or BERTRAM have ads?

Neither HyTools nor BERTRAM shows ads.

### Which is updated more often, HyTools or BERTRAM?

HyTools ships an update every 6 weeks, and BERTRAM every 9 days. Most recently, HyTools was updated on September 28, 2026 and BERTRAM 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.*