# Linear Interpolation Master vs Nautical Calculator.

The clearest difference is ads: Nautical Calculator. at none against Linear Interpolation Master's shown. Linear Interpolation Master's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Linear Interpolation Master sells 3 one-off in-app purchases and Nautical Calculator. sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Linear Interpolation Master ships an update every 5 months, Nautical Calculator. every 6 months. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Linear Interpolation Master | Nautical Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (186 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews)** | — |
| Number of ratings | **186** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 42 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## 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 |


### Nautical Calculator.

[App page](https://appshunter.io/ios/app/nautical-calculator/id6755711720)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


## Frequently asked questions

### Is Linear Interpolation Master free?

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

### Is Nautical Calculator. free?

Nautical Calculator. is free to download, with in-app purchases available.

### Do Linear Interpolation Master or Nautical Calculator. have ads?

Linear Interpolation Master shows ads; Nautical Calculator. does not.

### Which is updated more often, Linear Interpolation Master or Nautical Calculator.?

Linear Interpolation Master ships an update every 5 months, and Nautical Calculator. every 6 months. Most recently, Linear Interpolation Master was updated on October 26, 2026 and Nautical Calculator. on October 13, 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.*