# Arc Calculations vs Arctan Calculator

The clearest difference is price: Arctan Calculator at Free against Arc Calculations's $2.99. Arctan Calculator also leads on update cadence (every 12 months vs every 56 months) and iOS requirement (13.0 vs 16.1). On ads, in-app purchases and device support there is nothing between them.

Arctan Calculator is free to download; Arc Calculations costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Arc Calculations ships an update every 56 months, Arctan Calculator every 12 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Arc Calculations | Arctan Calculator |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 12 months** |
| Size | 1 MB | 43 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Stage Coding](https://appshunter.io/developer/1637068135) |

## What reviewers say

### Arc Calculations

[App page](https://appshunter.io/ios/app/arc-calculations/id1491438925)

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

**In-app purchases:** none


### Arctan Calculator

[App page](https://appshunter.io/ios/app/arctan-calculator/id1618657861)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arc Calculations free?

Arc Calculations costs $2.99, with no in-app purchases.

### Is Arctan Calculator free?

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

### Do Arc Calculations or Arctan Calculator have ads?

Neither Arc Calculations nor Arctan Calculator shows ads.

### Which is updated more often, Arc Calculations or Arctan Calculator?

Arc Calculations ships an update every 56 months, and Arctan Calculator every 12 months. Most recently, Arc Calculations was updated on November 3, 2026 and Arctan Calculator on November 3, 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.*