# Circle Calculator - Geometry — Radius, Area, Arc & DXF

> Radius, Area, Arc & DXF (iPhone/iPad app by AHMET DEMIR.)

- Source: https://appshunter.io/ios/app/circle-calculator-geometry/id6760240001 (this page in markdown: same URL + `.md`)
- Developer: [AHMET DEMIR](https://appshunter.io/developer/1849165331)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 64 MB
- Languages: American English
- Released: 2026-03-13
- Data updated: 2026-07-22
- User reviews in markdown: https://appshunter.io/ios/app/circle-calculator-geometry/id6760240001/reviews.md

## What is Circle Calculator?

Enter one value and instantly calculate radius, diameter, circumference and area. The live measured diagram updates with your inputs, while formula explanations help you understand the result.

CIRCLE AND GEOMETRY TOOLS
• Circle, arc, sector, segment, chord and annulus
• Polygon, triangle, sphere and cylinder measurements
• Unit, angle and precision controls

WORKSHOP PROBLEM SOLVING
• Bolt Circle (PCD) with X/Y drill coordinates
• Offline DN/NPS pipe schedule dimensions and weights
• Metal stock weight before cutting
• Cone flat patterns and pipe templates

SAVE AND EXPORT
Keep calculation history and favourites on your device. Eligible Pro workflows create PDF, CSV and DXF outputs for professional work.

OFFLINE-READY CORE
Core calculations and bundled pipe charts work without an internet connection. Purchases, advertising, support links and sharing can require a connection.

FREE AND PRO
Existing free calculators remain available. Pro adds selected workshop exports, advanced workflows, expanded history and an ad-free experience. The App Store shows current plans, trials and local prices before purchase.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Circle Pro Weekly | $1.99 | per 7 days |
| Circle Pro Monthly | $3.99 | per month |



## Version history (last 5 releases)

### 1.8.0 — 2026-07-20

A cleaner, more reliable Circle Calculator:
• Live results for core circle measurements
• Bolt-circle X/Y drill coordinates
• Offline pipe schedule and metal-weight tools
• Cone patterns and professional PDF/CSV/DXF exports
• Privacy, localization, accessibility and stability improvements

### 1.7.0 — 2026-06-13

Workshop Pack for fabricators:
• Pipe size chart (DN/NPS) — fully offline
• Metal weight calculator (7 materials)
• Bolt circle (PCD) drill coordinates + DXF
• Cone flat patterns with DXF export
• Pipe cut templates — print 1:1
Plus: annual plan, what's-new screen, full translations in 10 languages.

### 1.6.0 — 2026-03-21

- Smart daily notifications with geometry tips
  - iOS App Tracking Transparency for better ad experience
  - Improved ad delivery with rewarded interstitial fallback
  - Optimized ad frequencies for better engagement
  - 10-language notification support
  - Performance and stability improvements

### 1.5.6 — 2026-03-18

What's New in v1.5.6:

- New interactive onboarding experience
- Improved diagram sizing for better screen usage
- Keyboard auto-dismiss when tapping diagrams or scrolling
- Enhanced dark mode colors for measurements
- Performance improvements for calculation history
- 155 new unit tests for improved reliability
- Subscription pricing updated: Weekly $1.99, Monthly $3.99
- Bug fixes and stability improvements

### 1.5.5 — 2026-03-13

No release notes.

## More apps by AHMET DEMIR

- [GeoCalculate](https://appshunter.io/ios/app/geocalculate/id6754605203)

All apps by AHMET DEMIR: https://appshunter.io/developer/1849165331

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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 2026-07-22.*