# Linear Interpolation Master vs I/E Bible

The clearest difference is in-app purchases: I/E Bible at none against Linear Interpolation Master's 3. I/E Bible also leads on ads (none vs shown) and rating (5.0 vs 4.7). Linear Interpolation Master's advantage is ratings volume (176 vs 4) and iOS requirement (11.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Linear Interpolation Master sells 3 one-off in-app purchases. I/E Bible asks for nothing beyond the download.

I/E Bible holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Linear Interpolation Master has 176 ratings behind it against 4, so its average is the more settled of the two.

## The numbers

| Metric | Linear Interpolation Master | I/E Bible |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ie-bible/id6761774585/reviews)** |
| Number of ratings | **176** | 4 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 198 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [Oscar Corona](https://appshunter.io/developer/1891403709) |

## 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 |


### I/E Bible

[App page](https://appshunter.io/ios/app/ie-bible/id6761774585)

This app provides a centralized hub for instrument calibration resources. It offers instant answers to process instrumentation questions through an integrated AI agent, streamlining calibration workflows.

**Highlights:** Instrument calibration resources, AI agent for process instrumentation, Instant answers to technical questions, Streamlined calibration workflows, Centralized resource hub

**Features:** macOS Compatibility

**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 I/E Bible free?

I/E Bible is free to download, with no in-app purchases.

### Which has better reviews, Linear Interpolation Master or I/E Bible?

I/E Bible is rated higher. Linear Interpolation Master averages 4.7 out of 5 from 176 ratings, while I/E Bible averages 5.0 from 4 ratings.

### Do Linear Interpolation Master or I/E Bible have ads?

Linear Interpolation Master shows ads; I/E Bible does not.

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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.*