# archBuddypro

> Calculates arch radius, generates coordinates, and supports metric/imperial units. (iPhone/iPad app by Toshinori Shirakawa.)

- Source: https://appshunter.io/ios/app/archbuddypro/id6759478782 (this page in markdown: same URL + `.md`)
- Developer: [Toshinori Shirakawa](https://appshunter.io/developer/1878102734)
- Category: Utilities, Productivity
- Price: $2.99
- Age rating: 4+
- Requires: iOS 26.2 · 1 MB
- Languages: English
- Released: 2026-05-15
- Data updated: 2026-06-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/archbuddypro/id6759478782/reviews.md

## What is archBuddypro?

Calculate arch radius accurately from span and rise.
ArchBuddy is a practical tool that instantly calculates the required radius (R) by simply entering the span (width) and rise (height).
Supports both metric and imperial units for seamless use on job sites and in workshops.
Coordinates along an arch can be generated at any specified pitch, making this useful for constructing large arches that cannot be drawn with a compass or for working in confined spaces.
■ Key Features
・Radius calculation from span and rise
・Metric & imperial unit support
・Visual diagram display
・Clean, job-focused interface
・Save and Load each arch 
・Rename and Delate each arch
・Japanese / English language support
・Coordinate display
・PDF export
・Printing support
Ideal for construction, carpentry, metal fabrication, and professional fabrication work where precision matters.
Just fast and accurate calculations.

## Key features

- Radius calculation from span and rise
- Metric & imperial unit support
- Visual diagram display
- Save and load arch designs
- Coordinate generation
- PDF export and printing

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/archbuddypro/id6759478782/reviews.md

### 5/5 — ナイスバディ！！

*2026-05-20*

これは迷わず買いたい！

### 5/5 — So cool. とても使いやすい！

*2026-05-19*

Using this app when everyone is in trouble looks so cool. And this app is easy to use. 仲間が困っている時にこれを使ってすぐ答えを出せればとてもカッコいいと思いませんか？😎

## Frequently asked questions about archBuddypro

### What is archBuddypro used for?

archBuddypro is a utility app designed to accurately calculate the radius of an arch by inputting its span and rise. It also generates coordinates along the arch and supports both metric and imperial units for versatile use in construction and fabrication.

### How much does archBuddypro cost?

archBuddypro is a paid application, available for purchase at $2.99. This one-time purchase grants access to all its features without any recurring fees or in-app purchases.

### What devices does archBuddypro support?

archBuddypro is currently supported on iPhones. The app is designed to leverage the capabilities of iOS devices for its calculations and display features.

### How often is archBuddypro updated?

The latest version of archBuddypro is 8, and it was last updated on June 21, 2026. This indicates a recent update, suggesting ongoing development and support for the application.

### Can archBuddypro export designs?

Yes, archBuddypro supports PDF export and printing of arch designs. This feature allows users to easily share or document their calculated arch parameters and visual diagrams.

### Does archBuddypro have ads?

No, archBuddypro does not contain advertisements. As a paid application, it offers an ad-free experience, allowing users to focus on their calculations without interruption.

### What age rating does archBuddypro have?

archBuddypro has an age rating of 4+. This indicates that the app is suitable for users of all ages, with no content restrictions or mature themes.

### Can archBuddypro save arch designs?

Yes, archBuddypro allows users to save and load each arch design. You can also rename and delete saved arches, providing a convenient way to manage multiple projects.

## Version history (last 2 releases)

### 8 — 2026-06-21

you can now enter fractional values by typing a space followed by numbers and "/". (Example:5 1/2)

### 1.2 — 2026-05-15

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-28.*