# BluTest vs HygroSoft

The clearest difference is rating: BluTest at 4.0 against HygroSoft's 1.0. BluTest also leads on update cadence (every 5 weeks vs every 8 months) and iOS requirement (12.0 vs 14.2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BluTest holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

BluTest ships an update every 5 weeks, HygroSoft every 8 months. Both last shipped on June 1, 2026.

## The numbers

| Metric | BluTest | HygroSoft |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/blutest/id1468301498/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/hygrosoft/id6443735672/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 8 months |
| Monetization | Free | Free |
| Size | 19 MB | 166 MB |
| Requires iOS | **12.0** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Building Automation Products, Inc](https://appshunter.io/developer/1442208652) | [Rotronic AG](https://appshunter.io/developer/1057939250) |

## What reviewers say

### BluTest

[App page](https://appshunter.io/ios/app/blutest/id1468301498)

Connect to precision test instruments to measure temperature, humidity, and pressure. Log data directly from smart devices for easy access and sharing. The app simplifies commissioning, troubleshooting, and building automation system comparisons.

**Highlights:** Connect to Blü-Test sensor probes, Measure temperature, humidity, and pressure, Log data directly to smart devices, Save logs on probe and app, Email logs for reporting, Graph and compare data points

**Features:** macOS Compatibility

**In-app purchases:** none


### HygroSoft

[App page](https://appshunter.io/ios/app/hygrosoft/id6443735672)

This utility app allows for easy configuration, adjustment, and updates of new Rotronic devices using your smartphone's NFC interface. It supports device setup even without a power supply.

**Highlights:** NFC interface for device interaction, Easy configuration of Rotronic devices, Adjustment and updates via smartphone, Supports devices without power supply, Compatible with HygroFlex series

**In-app purchases:** none


## Frequently asked questions

### Is BluTest free?

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

### Is HygroSoft free?

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

### Which has better reviews, BluTest or HygroSoft?

BluTest is rated higher. BluTest averages 4.0 out of 5 from 2 ratings, while HygroSoft averages 1.0 from 1 ratings.

### Do BluTest or HygroSoft have ads?

Neither BluTest nor HygroSoft shows ads.

### Which is updated more often, BluTest or HygroSoft?

BluTest ships an update every 5 weeks, and HygroSoft every 8 months. Most recently, BluTest was updated on June 1, 2026 and HygroSoft on June 1, 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.*