# Linear Interpolation Master vs I&C Tech Tools

The clearest difference is rating: Linear Interpolation Master at 4.7 against I&C Tech Tools's 1.0. Linear Interpolation Master also leads on ratings volume (176 vs 1) and iOS requirement (11.0 vs 15.1). I&C Tech Tools's advantage is ads (none vs shown) and update cadence (every 4 days vs every 5 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Linear Interpolation Master sells 3 one-off in-app purchases and I&C Tech Tools sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Linear Interpolation Master holds the better App Store score, 4.7 against 1.0. 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.

Linear Interpolation Master ships an update every 5 months, I&C Tech Tools every 4 days. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Linear Interpolation Master | I&C Tech Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/i-and-c-tech-tools/id6756155332/reviews) |
| Number of ratings | **176** | 1 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 43 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [LONNIE DALE RAWLS](https://appshunter.io/developer/1858762647) |

## 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&C Tech Tools

[App page](https://appshunter.io/ios/app/i-and-c-tech-tools/id6756155332)

This app offers essential calculation tools for instrumentation and control technicians and engineers. It provides free access to basic tools, with advanced calculators available through a one-time in-app purchase or subscription.

**Highlights:** Basic instrumentation calculations, Free access to selected tools, Advanced calculators via in-app purchase, Practical reference tools, Ongoing improvements and updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I&C Tech Tools - Monthly Access | $4.99 | per month |
| I&C Tech Tools - Yearly | $49.99 | per year |


## Frequently asked questions

### Is Linear Interpolation Master free?

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

### Is I&C Tech Tools free?

I&C Tech Tools is free to download, with in-app purchases available.

### Which has better reviews, Linear Interpolation Master or I&C Tech Tools?

Linear Interpolation Master is rated higher. Linear Interpolation Master averages 4.7 out of 5 from 176 ratings, while I&C Tech Tools averages 1.0 from 1 ratings.

### Do Linear Interpolation Master or I&C Tech Tools have ads?

Linear Interpolation Master shows ads; I&C Tech Tools does not.

### Which is updated more often, Linear Interpolation Master or I&C Tech Tools?

Linear Interpolation Master ships an update every 5 months, and I&C Tech Tools every 4 days. Most recently, Linear Interpolation Master was updated on September 27, 2026 and I&C Tech Tools on September 26, 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.*