Interpolation 1.4 vs Linear Interpolation Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interpolation 1.4
This utility calculates linear or quadratic interpolations. It provides a straightforward tool for mathematical estimations based on given data points.
- Linear interpolation calculation
- Quadratic interpolation calculation
- Mathematical estimation tool
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** INTERPOLATION ** Interpolation is used to calculate a linear or a quadratic interpolation.
Linear Interpolation Master
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.
- Large number display for field visibility
- Quickly swap X and Y coordinates
- 4-20mA to 0-100% conversion
- 0-100% to 4-20mA conversion
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A linear interpolation calculator designed for industrial commissioning engineers. It has the following features: - Displays large numbers for when you are out in the field commissioning. - Allows quickly swapping x and y coordinates; for example from 4-20mA -> 0-100% to 0-100% -> 4-20mA.
Screenshots
Verdict
The clearest difference is rating: Linear Interpolation Master at 4.7 against Interpolation 1.4's 3.5. Linear Interpolation Master also leads on review sentiment (63% vs 33%) and ratings volume (176 vs 6). Interpolation 1.4's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Linear Interpolation Master sells 3 one-off in-app purchases. Interpolation 1.4 asks for nothing beyond the download.
Linear Interpolation Master holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Linear Interpolation Master has 176 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 33% of Interpolation 1.4's written reviews are positive against 63% of Linear Interpolation Master's.
Interpolation 1.4 ships an update every 3 weeks, Linear Interpolation Master every 5 months. The most recent releases landed on September 17, 2026 and October 10, 2026 respectively.
| Parameter | Interpolation 1.4 | Linear Interpolation Master |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (6 ratings) | 4.7 (176 ratings) — better |
| Positive reviews | 33.3% of reviews | 62.5% of reviews — better |
| Number of ratings | 6 | 176 — better |
| Update frequency | Every 3 weeks — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 1 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | ZOFTERM | VERVE TECHNOLOGIES PTY. LTD. |
Customer experience
Interpolation 1.4
Linear Interpolation Master
In-app purchases
Interpolation 1.4
No in-app purchases
Linear Interpolation Master
- Generous Tip$2.99
- Massive Tip$3.99
- Amazing Tip$4.99
Questions
Is Interpolation 1.4 free?
Is Linear Interpolation Master free?
Which has better reviews, Interpolation 1.4 or Linear Interpolation Master?
Do Interpolation 1.4 or Linear Interpolation Master have ads?
Which is updated more often, Interpolation 1.4 or Linear Interpolation Master?
Other comparisons
