InterCalc vs Interpolation 1.4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InterCalc
This app performs linear interpolation using a set of X-Y values to define a relationship. It can calculate values based on defined points, useful for tasks like converting pressure readings to fluid volumes in containers or performing simple unit conversions.
- Linear interpolation of X-Y values
- Defines arbitrary functions from data points
- Calculates fluid volume from pressure readings
- Performs unit conversions (e.g., temperature, speed)
- Supports custom data sets
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This application is designed to linearly interpolate a value given a set of X-Y values that define a relationship. The X-Y values can be as simple as two points that specify a simple line, or they can be a set of points that specifies an arbitrary function. One use of this program is to calculate the amount of fluid in a container given a pressure reading at the bottom of the tank. Typically this situation results in several pressure readings and corresponding volume ( gallons, liters ) readings as the tank is being filled. Once the pressure measuring device is so calibrated, pressure readings can then be converted to gallon or liter values. Other uses include simple conversions between Fahrenheit and Celsius, or between kph and mph.
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.
Screenshots
Verdict
The clearest difference is rating: InterCalc at 5.0 against Interpolation 1.4's 3.5. Interpolation 1.4's advantage is update cadence (every 3 weeks vs every 11 months) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
InterCalc holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Interpolation 1.4 has 6 ratings behind it against 1, so its average is the more settled of the two.
InterCalc ships an update every 11 months, Interpolation 1.4 every 3 weeks. The most recent releases landed on October 1, 2026 and September 17, 2026 respectively.
| Parameter | InterCalc | Interpolation 1.4 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.5 (6 ratings) |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 11 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | River Rock Logic | ZOFTERM |
Customer experience
InterCalc
Interpolation 1.4
In-app purchases
InterCalc
No in-app purchases
Interpolation 1.4
No in-app purchases
Questions
Is InterCalc free?
Is Interpolation 1.4 free?
Which has better reviews, InterCalc or Interpolation 1.4?
Do InterCalc or Interpolation 1.4 have ads?
Which is updated more often, InterCalc or Interpolation 1.4?
Other comparisons
