Comparison

InterCalc vs Interp Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Interp Calculator

Features
Read full description

Interpolation Calculator is a fast and practical tool for performing linear and bilinear interpolation directly on your device. Designed for engineers, students, technicians, scientists, and anyone working with numerical data, tables, formulas, or technical calculations, the app helps you quickly calculate intermediate values between known data points. KEY FEATURES • Linear Interpolation Calculate an unknown value between two known data points quickly and accurately. • Bilinear Interpolation Determine an intermediate value inside a two-dimensional data grid using four surrounding values. • Fast and Simple Calculations Enter the required numerical values and get the result immediately. • Works Offline No internet connection is required. Use the calculator anywhere — at work, in class, in the laboratory, on site, or while travelling. • Clean and Practical Interface A simple interface keeps the focus on calculations without unnecessary menus or distractions. • Light and Dark Themes Choose the appearance that is most comfortable for your working environment. USEFUL FOR Interpolation Calculator can be used in many technical and educational fields, including: • Engineering • Mathematics • Physics • Technical calculations • Scientific calculations • Numerical analysis • Tabular data processing • Laboratory work • Education and study Whether you need to interpolate values from engineering tables, calculate an intermediate result for a technical task, or solve interpolation exercises, Interpolation Calculator provides a convenient way to perform calculations quickly and efficiently. No internet connection. No complicated setup. Just enter your values and calculate.

Screenshots

InterCalc4 screens
Interp Calculator4 screens

Verdict

The call

The clearest difference is price: InterCalc at Free against Interp Calculator's $0.99. Interp Calculator's advantage is iOS requirement (15.0 vs 18.6). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

InterCalc is free to download; Interp Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

InterCalc ships an update every 11 months, Interp Calculator every 15 months. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 7 level
InterCalc versus Interp Calculator: the parameters behind the verdict, then further details
ParameterInterCalcInterp Calculator
PriceFree — better$0.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 11 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.615.0 — better
Further details — not scored
Size1 MB22 MB
Age rating4+4+
DeveloperRiver Rock LogicStanislav Soroka

In-app purchases

None

InterCalc

No in-app purchases

None

Interp Calculator

No in-app purchases

Questions

Is InterCalc free?
InterCalc is free to download, with no in-app purchases.
Is Interp Calculator free?
Interp Calculator costs $0.99, with no in-app purchases.
Do InterCalc or Interp Calculator have ads?
Neither InterCalc nor Interp Calculator shows ads.
Which is updated more often, InterCalc or Interp Calculator?
InterCalc ships an update every 11 months, and Interp Calculator every 15 months. Most recently, InterCalc was updated on October 17, 2026 and Interp Calculator on October 6, 2026.

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