# Linear Interpolation Master vs Piles Inspector Helper

The clearest difference is price: Linear Interpolation Master at Free against Piles Inspector Helper's $1.99. Linear Interpolation Master also leads on ratings volume (176 vs 1). Piles Inspector Helper's advantage is review sentiment (100% vs 63%) and in-app purchases (none vs 3). On device support and iOS requirement there is nothing between them.

Linear Interpolation Master is free to download; Piles Inspector Helper costs $1.99 up front. Linear Interpolation Master sells 3 one-off in-app purchases. Piles Inspector Helper asks for nothing beyond the download.

Piles Inspector Helper 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 1, so its average is the more settled of the two. Written reviews point the same way: 63% of Linear Interpolation Master's written reviews are positive against 100% of Piles Inspector Helper's.

## The numbers

| Metric | Linear Interpolation Master | Piles Inspector Helper |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/piles-inspector-helper/id6746695439/reviews)** |
| Number of ratings | **176** | 1 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 16 MB | 4 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [Jesus Tarre](https://appshunter.io/developer/1514674723) |

## 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 |


### Piles Inspector Helper

[App page](https://appshunter.io/ios/app/piles-inspector-helper/id6746695439)

This app assists roadway inspectors with quick and accurate calculations for essential measurements and data related to piles. It simplifies complex calculations for plumb or batter piles, tip elevations, penetration, and cut-off lengths, designed by an experienced inspector.

**Highlights:** Pile driving calculations, Plumb or batter pile support, Minimum tip target foot mark, Stop for set-check target foot mark, Final tip elevation calculation, Penetration below ground/scour, Cut-off length calculation

**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 Piles Inspector Helper free?

Piles Inspector Helper costs $1.99, with no in-app purchases.

### Which has better reviews, Linear Interpolation Master or Piles Inspector Helper?

Piles Inspector Helper is rated higher. Linear Interpolation Master averages 4.7 out of 5 from 176 ratings, while Piles Inspector Helper averages 5.0 from 1 ratings.

### Do Linear Interpolation Master or Piles Inspector Helper have ads?

Linear Interpolation Master shows ads; Piles Inspector Helper 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.*