# Rheonics SensorView vs BYK Viscosity Calculator

The clearest difference is update cadence: BYK Viscosity Calculator at weekly against Rheonics SensorView's every 33 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.

Rheonics SensorView ships an update every 33 months, BYK Viscosity Calculator weekly. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Rheonics SensorView | BYK Viscosity Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rheonics-sensorview/id1557966204/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Weekly** |
| Monetization | Free | — |
| Size | 25 MB | 6 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rheonics GmbH](https://appshunter.io/developer/1557966206) | [BYK Gardner](https://appshunter.io/developer/1488629530) |

## What reviewers say

### Rheonics SensorView

[App page](https://appshunter.io/ios/app/rheonics-sensorview/id1557966204)

Monitor Rheonics inline viscometers and density meters wirelessly via Bluetooth LE. View real-time measurements like viscosity, density, and temperature, with options to customize graphs. Future updates will include estimated parameters.

**Highlights:** Wireless Bluetooth LE connectivity, Real-time viscosity measurement, Real-time density measurement, Real-time temperature monitoring, Customizable real-time graphs, Future estimated parameter display

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

**In-app purchases:** none


### BYK Viscosity Calculator

[App page](https://appshunter.io/ios/app/byk-viscosity-calculator/id6748367137)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rheonics SensorView free?

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

### Is BYK Viscosity Calculator free?

BYK Viscosity Calculator is free to download, with no in-app purchases.

### Do Rheonics SensorView or BYK Viscosity Calculator have ads?

Neither Rheonics SensorView nor BYK Viscosity Calculator shows ads.

### Which is updated more often, Rheonics SensorView or BYK Viscosity Calculator?

Rheonics SensorView ships an update every 33 months, and BYK Viscosity Calculator weekly. Most recently, Rheonics SensorView was updated on October 21, 2026 and BYK Viscosity Calculator on October 9, 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.*