# Interpolator vs Linear Interpolation Master

The clearest difference is in-app purchases: Interpolator at none against Linear Interpolation Master's 3. Interpolator also leads on ads (none vs shown) and rating (4.9 vs 4.7). On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

Interpolator holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 74 and 176 respectively. Written reviews point the same way: 67% of Interpolator's written reviews are positive against 63% of Linear Interpolation Master's.

Interpolator ships an update every 4 months, Linear Interpolation Master every 5 months. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Interpolator | Linear Interpolation Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (74 ratings)](https://appshunter.io/ios/app/interpolator/id635235982/reviews)** | [4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews) |
| Number of ratings | 74 | **176** |
| Positive reviews | **66.7% of reviews** | 62.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 16 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [ron mooring](https://appshunter.io/developer/612283157) | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) |

## What reviewers say

### Interpolator

[App page](https://appshunter.io/ios/app/interpolator/id635235982)

Easily find values within tables using interpolation for two or three rows. This utility app simplifies calculations without needing a separate calculator, making it ideal for various table-based environments.

**Highlights:** Two-row interpolation, Three-row interpolation, Table value lookup, No calculator needed, Cargo surveyor tool, General table use

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Interpolator free?

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

### Is Linear Interpolation Master free?

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

### Which has better reviews, Interpolator or Linear Interpolation Master?

Interpolator is rated higher. Interpolator averages 4.9 out of 5 from 74 ratings, while Linear Interpolation Master averages 4.7 from 176 ratings.

### Do Interpolator or Linear Interpolation Master have ads?

Linear Interpolation Master shows ads; Interpolator does not.

### Which is updated more often, Interpolator or Linear Interpolation Master?

Interpolator ships an update every 4 months, and Linear Interpolation Master every 5 months. Most recently, Interpolator was updated on September 9, 2026 and Linear Interpolation Master on September 22, 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.*