# HyTools vs Mart Cart Utility

The clearest difference is update cadence: HyTools at every 6 weeks against Mart Cart Utility's every 9 months. Mart Cart Utility's advantage is iOS requirement (12.0 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.

HyTools ships an update every 6 weeks, Mart Cart Utility every 9 months. The most recent releases landed on October 23, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | HyTools | Mart Cart Utility |
| --- | --- | --- |
| 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 months |
| Monetization | Free | — |
| Size | 114 MB | 9 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMI Hydronic Engineering International SA](https://appshunter.io/developer/508015425) | [Assembled Products Corporation](https://appshunter.io/developer/1378672180) |

## 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


### Mart Cart Utility

[App page](https://appshunter.io/ios/app/mart-cart-utility/id1378672541)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HyTools free?

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

### Is Mart Cart Utility free?

Mart Cart Utility is free to download, with no in-app purchases.

### Do HyTools or Mart Cart Utility have ads?

Neither HyTools nor Mart Cart Utility shows ads.

### Which is updated more often, HyTools or Mart Cart Utility?

HyTools ships an update every 6 weeks, and Mart Cart Utility every 9 months. Most recently, HyTools was updated on October 23, 2026 and Mart Cart Utility on September 15, 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.*