# IsI Calculator vs CalcN

The clearest difference is update cadence: IsI Calculator at fortnightly against CalcN's every 5 months. IsI Calculator also leads on iOS requirement (9.0 vs 15.6). On price, ads, 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.

IsI Calculator ships an update fortnightly, CalcN every 5 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | IsI Calculator | CalcN |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | — | Free |
| Size | 15 MB | 1 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dominic Barra](https://appshunter.io/developer/891093115) | [RG-EDV](https://appshunter.io/developer/908638834) |

## What reviewers say

### IsI Calculator

[App page](https://appshunter.io/ios/app/isi-calculator/id891516315)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalcN

[App page](https://appshunter.io/ios/app/calcn/id951442036)

A straightforward calculator app designed for ease of use with large buttons. It simplifies basic calculations, including percentage functions, making it ideal for quick arithmetic tasks.

**Highlights:** Large buttons, Easy to use, Percentage calculation, Basic arithmetic

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IsI Calculator free?

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

### Is CalcN free?

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

### Do IsI Calculator or CalcN have ads?

Neither IsI Calculator nor CalcN shows ads.

### Which is updated more often, IsI Calculator or CalcN?

IsI Calculator ships an update fortnightly, and CalcN every 5 months. Most recently, IsI Calculator was updated on November 6, 2026 and CalcN on November 6, 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.*