# InterCalc vs Interpolation 1.4

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.

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.

## The numbers

| Metric | InterCalc | Interpolation 1.4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intercalc/id498391316/reviews)** | [3.5 (6 ratings)](https://appshunter.io/ios/app/interpolation-14/id557950545/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 1 MB |
| Requires iOS | 18.6 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [River Rock Logic](https://appshunter.io/developer/340225113) | [ZOFTERM](https://appshunter.io/developer/557950548) |

## What reviewers say

### InterCalc

[App page](https://appshunter.io/ios/app/intercalc/id498391316)

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:** macOS Compatibility

**In-app purchases:** none


### Interpolation 1.4

[App page](https://appshunter.io/ios/app/interpolation-14/id557950545)

This utility calculates linear or quadratic interpolations. It provides a straightforward tool for mathematical estimations based on given data points.

**Highlights:** Linear interpolation calculation, Quadratic interpolation calculation, Mathematical estimation tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is InterCalc free?

InterCalc is free to download, with no in-app purchases.

### Is Interpolation 1.4 free?

Interpolation 1.4 is free to download, with no in-app purchases.

### Which has better reviews, InterCalc or Interpolation 1.4?

InterCalc is rated higher. InterCalc averages 5.0 out of 5 from 1 ratings, while Interpolation 1.4 averages 3.5 from 6 ratings.

### Do InterCalc or Interpolation 1.4 have ads?

Neither InterCalc nor Interpolation 1.4 shows ads.

### Which is updated more often, InterCalc or Interpolation 1.4?

InterCalc ships an update every 11 months, and Interpolation 1.4 every 3 weeks. Most recently, InterCalc was updated on October 1, 2026 and Interpolation 1.4 on September 17, 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.*