# interCalculator vs Dual Calculator

The clearest difference is ads: interCalculator at none against Dual Calculator's shown. Dual Calculator's advantage is update cadence (every 4 months vs every 9 months) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

interCalculator ships an update every 9 months, Dual Calculator every 4 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | interCalculator | Dual Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intercalculator/id1550864236/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 32 MB | 41 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [interfinity Limited](https://appshunter.io/developer/1774724445) | [Huzaib Sayyed](https://appshunter.io/developer/1778310247) |

## What reviewers say

### interCalculator

[App page](https://appshunter.io/ios/app/intercalculator/id1550864236)

A versatile calculator app offering everyday arithmetic, advanced scientific functions, number base conversions, and graphing capabilities. It provides a clean interface designed for various screen sizes and includes features like prime number marking and divisor finding.

**Highlights:** Full expression calculation, Scientific functions (sin, cos, log), Number base conversion (binary, hex), Function graphing (f(x)), Divisor and prime divisor finder, iCloud history sync, Customizable accent colors

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


### Dual Calculator

[App page](https://appshunter.io/ios/app/dual-calculator-easy-calc/id6738931674)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is interCalculator free?

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

### Is Dual Calculator free?

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

### Do interCalculator or Dual Calculator have ads?

Dual Calculator shows ads; interCalculator does not.

### Which is updated more often, interCalculator or Dual Calculator?

interCalculator ships an update every 9 months, and Dual Calculator every 4 months. Most recently, interCalculator was updated on November 3, 2026 and Dual Calculator on November 8, 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.*