# InterCalc vs The Best Unit Converter

The clearest difference is rating: InterCalc at 5.0 against The Best Unit Converter's 4.2. InterCalc also leads on in-app purchases (none vs 3). The Best Unit Converter's advantage is update cadence (weekly vs every 11 months) and ratings volume (5 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. The Best Unit Converter sells 3 one-off in-app purchases. InterCalc asks for nothing beyond the download.

InterCalc holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: The Best Unit Converter has 5 ratings behind it against 1, so its average is the more settled of the two.

InterCalc ships an update every 11 months, The Best Unit Converter weekly. The most recent releases landed on October 17, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | InterCalc | The Best Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intercalc/id498391316/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/the-best-unit-converter/id1360876047/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 8 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [River Rock Logic](https://appshunter.io/developer/340225113) | [Michael Baron](https://appshunter.io/developer/1468892980) |

## 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


### The Best Unit Converter

[App page](https://appshunter.io/ios/app/the-best-unit-converter/id1360876047)

Easily convert between various units with a simple interface. This application supports numerous conversions, allowing you to switch between different units and back again with just a few taps.

**Highlights:** Multiple unit conversions, Simple and clean design, Easy to use interface, Converts units and back again, Supports various measurement types

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| More Units | $0.99 | one-time |
| Intrasystem Conversions | $1.99 | one-time |


## Frequently asked questions

### Is InterCalc free?

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

### Is The Best Unit Converter free?

The Best Unit Converter is free to download, with in-app purchases available.

### Which has better reviews, InterCalc or The Best Unit Converter?

InterCalc is rated higher. InterCalc averages 5.0 out of 5 from 1 ratings, while The Best Unit Converter averages 4.2 from 5 ratings.

### Do InterCalc or The Best Unit Converter have ads?

Neither InterCalc nor The Best Unit Converter shows ads.

### Which is updated more often, InterCalc or The Best Unit Converter?

InterCalc ships an update every 11 months, and The Best Unit Converter weekly. Most recently, InterCalc was updated on October 17, 2026 and The Best Unit Converter on October 22, 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.*