# Linear Interpolation Master vs BITZER Electronics ServiceTool

The clearest difference is rating: Linear Interpolation Master at 4.7 against BITZER Electronics ServiceTool's 3.0. Linear Interpolation Master also leads on ratings volume (186 vs 2) and iOS requirement (11.0 vs 15.0). BITZER Electronics ServiceTool's advantage is review sentiment (100% vs 63%) and in-app purchases (none vs 3). On price, update cadence and device support there is nothing between them.

Both are free to download. Linear Interpolation Master sells 3 one-off in-app purchases. BITZER Electronics ServiceTool asks for nothing beyond the download.

Linear Interpolation Master holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Linear Interpolation Master has 186 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 63% of Linear Interpolation Master's written reviews are positive against 100% of BITZER Electronics ServiceTool's, so the app with the better star average is not the one people write more warmly about.

Linear Interpolation Master ships an update every 5 months, BITZER Electronics ServiceTool every 2 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Linear Interpolation Master | BITZER Electronics ServiceTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (186 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/bitzer-electronics-servicetool/id1437610638/reviews) |
| Number of ratings | **186** | 2 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 249 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [BITZER SE](https://appshunter.io/developer/1224090796) |

## What reviewers say

### Linear Interpolation Master

[App page](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994)

This tool simplifies linear interpolation calculations for industrial commissioning engineers. It features large, easily readable numbers for field use and allows for quick swapping of coordinate systems, such as converting between 4-20mA and 0-100% scales.

**Highlights:** Large number display for field visibility, Quickly swap X and Y coordinates, 4-20mA to 0-100% conversion, 0-100% to 4-20mA conversion

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generous Tip | $2.99 | one-time |
| Massive Tip | $3.99 | one-time |
| Amazing Tip | $4.99 | one-time |


### BITZER Electronics ServiceTool

[App page](https://appshunter.io/ios/app/bitzer-electronics-servicetool/id1437610638)

This utility app allows users to connect to BITZER IQ products via Bluetooth for device configuration, operation monitoring, and alarm viewing. It also enables log retrieval, visualization, and cloud uploading for storage and sharing.

**Highlights:** Bluetooth connectivity, Device configuration, Operation monitoring, Alarm viewing with help texts, Log retrieval and visualization, Cloud data uploading

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

**In-app purchases:** none


## Frequently asked questions

### Is Linear Interpolation Master free?

Linear Interpolation Master is free to download, with in-app purchases available.

### Is BITZER Electronics ServiceTool free?

BITZER Electronics ServiceTool is free to download, with no in-app purchases.

### Which has better reviews, Linear Interpolation Master or BITZER Electronics ServiceTool?

Linear Interpolation Master is rated higher. Linear Interpolation Master averages 4.7 out of 5 from 186 ratings, while BITZER Electronics ServiceTool averages 3.0 from 2 ratings.

### Do Linear Interpolation Master or BITZER Electronics ServiceTool have ads?

Linear Interpolation Master shows ads; BITZER Electronics ServiceTool does not.

### Which is updated more often, Linear Interpolation Master or BITZER Electronics ServiceTool?

Linear Interpolation Master ships an update every 5 months, and BITZER Electronics ServiceTool every 2 months. Most recently, Linear Interpolation Master was updated on November 2, 2026 and BITZER Electronics ServiceTool on November 2, 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.*