# HyTools vs PCT GO

The clearest difference is update cadence: HyTools at every 6 weeks against PCT GO's every 3 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.

HyTools ships an update every 6 weeks, PCT GO every 3 months. The most recent releases landed on July 25, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | HyTools | PCT GO |
| --- | --- | --- |
| 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 3 months |
| Monetization | Free | — |
| Size | 114 MB | 65 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMI Hydronic Engineering International SA](https://appshunter.io/developer/508015425) | [Siemens AG](https://appshunter.io/developer/394503271) |

## 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


### PCT GO

[App page](https://appshunter.io/ios/app/pct-go/id1555708200)

**In-app purchases:** none


## Frequently asked questions

### Is HyTools free?

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

### Is PCT GO free?

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

### Do HyTools or PCT GO have ads?

Neither HyTools nor PCT GO shows ads.

### Which is updated more often, HyTools or PCT GO?

HyTools ships an update every 6 weeks, and PCT GO every 3 months. Most recently, HyTools was updated on July 25, 2026 and PCT GO on May 17, 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.*