# RoCa - roof calculator

> RoCa - roof calculator (iPhone/iPad app by Phillipp Rochel.)

- Source: https://appshunter.io/ios/app/roca-roof-calculator/id1627536142 (this page in markdown: same URL + `.md`)
- Developer: [Phillipp Rochel](https://appshunter.io/developer/1627536144)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 4 MB
- Languages: English, German
- Released: 2022-06-04
- Data updated: 2026-06-20
- User reviews in markdown: https://appshunter.io/ios/app/roca-roof-calculator/id1627536142/reviews.md

## What is RoCa?

Calculate roof area and tile requirements in seconds — right from your iPhone 
  or iPad.                                                  

  RoCa is the fast, no-nonsense roof calculator for anyone who needs to know how
   many square meters of roof they have and roughly how many tiles they'll need.
   Whether you're planning a new build, renovating a house, or just estimating  
  material — RoCa gives you sensible numbers instantly.     

  ▸ SIX ROOF SHAPES
  • Gable / saddle roof
  • Hip roof
  • Half-hip roof                                                               
  • Mono-pitch / shed roof
  • Tented / pyramid roof                                                       
  • Through-roof                                                                
  
  ▸ SIMPLE INPUT                                                                
  Length, width, eaves overhang, slope angle, and where needed, ridge length or
  hip height. Use sliders or the keyboard. Live preview shows which dimension   
  you're currently editing.
                                                                                
  ▸ PRECISE MATH                                            
  Clean geometry implementation — no rough rules of thumb, no lookup tables with
   rounding errors. Proven formulas per roof type, including overhangs.         
  
  ▸ TILE PICKER                                                                 
  Pick a tile type and RoCa estimates the count automatically:
  • Frankfurter pan tile (~10/m²)                                               
  • Double-pan interlocking tile (~12/m²)                                       
  • Plain tile, double-lap (~36/m²)                                             
  • Large-format tile (~8/m²)                                                   
  • Smooth flat tile (~10/m²)                                                   
  • Generic average (~15/m²)                                
                                                                                
  ▸ SHARE                                                   
  Send your result by message, email or AirDrop.
                                                                                
  ▸ OFFLINE-FIRST
  All calculations run locally. Your input never leaves the device. No sign-in, 
  no account, no cloud.                                                         
  
  ▸ MODERN                                                                      
  Built for iOS 16+. Dark mode, German, English, iPhone and iPad.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |



## Version history (last 5 releases)

### 2.1.1 — 2026-06-03

• Improved stability and performance
  • Bug fixes and minor optimizations

### 2 — 2026-05-28

Version 2.0 — Major update.
                                                                                
  • Rebuilt from scratch with modern SwiftUI                
  • Six roof shapes with precise, verified math
  • New tile picker with six common types                                       
  • Live preview while editing dimensions
  • Share your result via message, mail or AirDrop                              
  • Dark mode                                                                   
  • English localization
  • Optimized for iPhone 15/16 and iPadOS

### 1.3 — 2024-09-30

- Visuelle Verbesserungen.
- Formel Verbesserung

### 1.01 — 2022-06-05

- Diverse Bugfixes 
- Neue Inhalte

### 1.0 — 2022-06-04

No release notes.

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## More apps by Phillipp Rochel

- [Lira – Die Vorgeschichte](https://appshunter.io/ios/app/lira-die-vorgeschichte/id6773116411)
- [Dienstantritt!](https://appshunter.io/ios/app/dienstantritt/id6776377704)

All apps by Phillipp Rochel: https://appshunter.io/developer/1627536144

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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 2026-06-20.*