# Linear Interpolation Master vs Sweep & Zone

The clearest difference is review sentiment: Sweep & Zone at 100% against Linear Interpolation Master's 63%. Sweep & Zone also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 5 months). Linear Interpolation Master's advantage is ratings volume (176 vs 22) and iOS requirement (11.0 vs 17.0). 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 Sweep & Zone sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Sweep & Zone holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Linear Interpolation Master has 176 ratings behind it against 22, 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 Sweep & Zone's.

Linear Interpolation Master ships an update every 5 months, Sweep & Zone every 5 weeks. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Linear Interpolation Master | Sweep & Zone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews) | **[4.9 (22 ratings)](https://appshunter.io/ios/app/sweep-and-zone/id1590930048/reviews)** |
| Number of ratings | **176** | 22 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 16 MB | 4 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [Utility Forces LLC](https://appshunter.io/developer/1590930050) |

## 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 |


### Sweep & Zone

[App page](https://appshunter.io/ios/app/sweep-and-zone/id1590930048)

This utility app helps field artillery personnel calculate firing data quickly and accurately. It reduces human error by computing changes in mils, deflections, and quadrants, allowing users to focus on critical tasks during high-stress situations.

**Highlights:** Fast and accurate firing data computation, Reduces human error under stress, Input changes in mils, deflections, and quadrants, Calculates base deflection and quadrant, Unlimited access with subscription

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited operations | $0.99 | per month |
| Unlimited operations | $9.99 | per year |


## Frequently asked questions

### Is Linear Interpolation Master free?

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

### Is Sweep & Zone free?

Sweep & Zone is free to download, with in-app purchases available.

### Which has better reviews, Linear Interpolation Master or Sweep & Zone?

Sweep & Zone is rated higher. Linear Interpolation Master averages 4.7 out of 5 from 176 ratings, while Sweep & Zone averages 4.9 from 22 ratings.

### Do Linear Interpolation Master or Sweep & Zone have ads?

Linear Interpolation Master shows ads; Sweep & Zone does not.

### Which is updated more often, Linear Interpolation Master or Sweep & Zone?

Linear Interpolation Master ships an update every 5 months, and Sweep & Zone every 5 weeks. Most recently, Linear Interpolation Master was updated on October 14, 2026 and Sweep & Zone on October 1, 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.*