# Arc Calculator Pro vs Arctan Calculator

The clearest difference is price: Arctan Calculator at Free against Arc Calculator Pro's $3.99. Arctan Calculator also leads on update cadence (every 12 months vs every 41 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 Calculator Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Arc Calculator Pro ships an update every 41 months, Arctan Calculator every 12 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Arc Calculator Pro | Arctan Calculator |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 12 months** |
| Monetization | Paid | — |
| Size | 2 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 Calculator Pro

[App page](https://appshunter.io/ios/app/arc-calculator-pro/id1491369908)

This utility app provides precise calculations for various arc measurements, including length, angle, radius, and area. It supports both millimeters and inches, making it ideal for fabrication and engineering tasks. The app is designed for high performance and offline use.

**Highlights:** Arc Length Calculation, Arc Angle Calculation, Arc Radius Calculation, Arc Segment Area Calculation, Arc Sector Area Calculation, Supports mm and inches, Offline functionality

**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 Calculator Pro free?

Arc Calculator Pro costs $3.99, with no in-app purchases.

### Is Arctan Calculator free?

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

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

Neither Arc Calculator Pro nor Arctan Calculator shows ads.

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

Arc Calculator Pro ships an update every 41 months, and Arctan Calculator every 12 months. Most recently, Arc Calculator Pro was updated on October 29, 2026 and Arctan Calculator on October 27, 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.*