# Linear Interpolation Master vs AeroRef

The clearest difference is in-app purchases: AeroRef at none against Linear Interpolation Master's 3. AeroRef also leads on ads (none vs shown) and update cadence (every 3 days vs every 5 months). Linear Interpolation Master's advantage is ratings volume (186 vs 1) and device support (3 vs 1). On price there is nothing between them.

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

AeroRef 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 186 ratings behind it against 1, so its average is the more settled of the two.

Linear Interpolation Master ships an update every 5 months, AeroRef every 3 days. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Linear Interpolation Master | AeroRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (186 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aeroref/id6794509367/reviews)** |
| Number of ratings | **186** | 1 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 12 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [Gateway Dynamic Software, LLC](https://appshunter.io/developer/6794509369) |

## 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 |


### AeroRef

[App page](https://appshunter.io/ios/app/aeroref/id6794509367)

This pilot companion app provides essential flight calculations and tools directly on your device, no internet needed. It features a UTC clock, dual-mode timer, and calculators for vertical speed, glide slope, and crosswind. Designed for clarity and speed in the cockpit, it offers large text, adjustable modes, and haptic feedback.

**Highlights:** UTC Clock, Dual-mode Timer, FPM Calculator, Glide Slope Calculator, Crosswind Calculator, Large, readable text, Dark/light display modes

**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 AeroRef free?

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

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

AeroRef is rated higher. Linear Interpolation Master averages 4.7 out of 5 from 186 ratings, while AeroRef averages 5.0 from 1 ratings.

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

Linear Interpolation Master shows ads; AeroRef does not.

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

Linear Interpolation Master ships an update every 5 months, and AeroRef every 3 days. Most recently, Linear Interpolation Master was updated on October 26, 2026 and AeroRef on October 29, 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.*