# HyTools vs GaugeRemote

The clearest difference is update cadence: HyTools at every 6 weeks against GaugeRemote's every 3 months. GaugeRemote's advantage is iOS requirement (6.0 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, GaugeRemote every 3 months. The most recent releases landed on July 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | HyTools | GaugeRemote |
| --- | --- | --- |
| 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 | 5 MB |
| Requires iOS | 15.0 | **6.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IMI Hydronic Engineering International SA](https://appshunter.io/developer/508015425) | [RETROTEC, INC.](https://appshunter.io/developer/899311156) |

## 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


### GaugeRemote

[App page](https://appshunter.io/ios/app/gaugeremote/id676264513)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HyTools free?

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

### Is GaugeRemote free?

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

### Do HyTools or GaugeRemote have ads?

Neither HyTools nor GaugeRemote shows ads.

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

HyTools ships an update every 6 weeks, and GaugeRemote every 3 months. Most recently, HyTools was updated on July 25, 2026 and GaugeRemote on September 22, 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.*