# InterCalc vs 2nd Calc

The clearest difference is iOS requirement: 2nd Calc at 12.0 against InterCalc's 18.6. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for InterCalc against 5.0 for 2nd Calc. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

InterCalc ships an update every 11 months, 2nd Calc every 6 months. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | InterCalc | 2nd Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/intercalc/id498391316/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/2nd-calc-tips-temps-times/id6460259004/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 months** |
| Monetization | Free | Free |
| Size | 1 MB | 41 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [River Rock Logic](https://appshunter.io/developer/340225113) | [Scott Kier](https://appshunter.io/developer/1590432802) |

## 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


### 2nd Calc

[App page](https://appshunter.io/ios/app/2nd-calc-tips-temps-times/id6460259004)

This utility app simplifies everyday calculations with a tip calculator, temperature and unit converters, a real-time currency converter, and a multi-city time zone display. It aims to be your go-to tool for common daily tasks, keeping complex calculators for specialized needs.

**Highlights:** Tip calculator, Temperature conversion (F/C), Unit converter (distance/weight), Real-time currency converter, Multi-city time zone display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is InterCalc free?

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

### Is 2nd Calc free?

2nd Calc is free to download, with no in-app purchases.

### Which has better reviews, InterCalc or 2nd Calc?

InterCalc and 2nd Calc are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do InterCalc or 2nd Calc have ads?

Neither InterCalc nor 2nd Calc shows ads.

### Which is updated more often, InterCalc or 2nd Calc?

InterCalc ships an update every 11 months, and 2nd Calc every 6 months. Most recently, InterCalc was updated on October 17, 2026 and 2nd Calc on October 21, 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.*