Interpolator vs Interp Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interpolator
Easily find values within tables using interpolation for two or three rows. This utility app simplifies calculations without needing a separate calculator, making it ideal for various table-based environments.
- Two-row interpolation
- Three-row interpolation
- Table value lookup
- No calculator needed
- Cargo surveyor tool
- General table use
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This is a small app which makes it very easy to look up values in tables (math etc) when you have to interpolate both in two and in three rows. No more need for a calculator to interpolate manually. This app was designed primarily for cargo surveyors working with tank calibration tables, but the app does have its application in any environment where tables are used. As of 13th January 2015, this app has become FREE until further notice.
Interp Calculator
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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
Verdict
The clearest difference is price: Interpolator at Free against Interp Calculator's $0.99. Interpolator also leads on update cadence (every 4 months vs every 15 months) and iOS requirement (12.0 vs 15.0). On 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
Interpolator is free to download; Interp Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Interpolator ships an update every 4 months, Interp Calculator every 15 months. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.
| Parameter | Interpolator | Interp Calculator |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.9 (75 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 75 — better | — |
| Update frequency | Every 4 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 22 MB |
| Age rating | +4 | 4+ |
| Developer | ron mooring | Stanislav Soroka |
In-app purchases
Interpolator
No in-app purchases
Interp Calculator
No in-app purchases
Questions
Is Interpolator free?
Is Interp Calculator free?
Do Interpolator or Interp Calculator have ads?
Which is updated more often, Interpolator or Interp Calculator?
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