# Calculator vs Arithon Calculator

The clearest difference is ads: Arithon Calculator at none against Calculator's shown. Arithon Calculator also leads on iOS requirement (15.1 vs 17.5). On price, update cadence, 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.

Calculator ships an update every 2 weeks, Arithon Calculator weekly. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Calculator | Arithon Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 20 MB | 31 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vicki Partridge](https://appshunter.io/developer/1114861973) | [Mind Mirage Apps Ltd](https://appshunter.io/developer/1896465995) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-easy-maths/id6523667513)

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

**In-app purchases:** none


### Arithon Calculator

[App page](https://appshunter.io/ios/app/arithon-calculator/id6767340730)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is Arithon Calculator free?

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

### Do Calculator or Arithon Calculator have ads?

Calculator shows ads; Arithon Calculator does not.

### Which is updated more often, Calculator or Arithon Calculator?

Calculator ships an update every 2 weeks, and Arithon Calculator weekly. Most recently, Calculator was updated on October 13, 2026 and Arithon Calculator on October 9, 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.*