GeoFormulas – Interactive Geometry Calculator iOS App

SwiftUI • MVVM • Full Source Code • Easy Reskin • Monetization Ready

GeoFormulas is a professional iOS geometry calculator app template featuring 18+ shapes, interactive formula input, calculation history, favorites, and beautiful themes. Built with SwiftUI and a clean MVVM architecture, it’s fully documented and designed for fast customization—ideal for educational apps, math tools, and branded calculators.

️ Transform Geometry Learning with This Premium iOS App Template

GeoFormulas is a comprehensive, production-ready iOS application designed to help students, educators, and professionals master geometry through interactive calculations and visual learning. The codebase follows modern iOS best practices, works smoothly on iPhone and iPad, and is ready for publication or rebranding.

Why Choose GeoFormulas?

• ✅ Production-Ready Code — clean, tested, and well documented
• ✅ Easy Customization — centralized AppConfig.swift for fast reskinning
• ✅ Modern Architecture — SwiftUI + MVVM pattern
• ✅ No Dependencies — 100% native iOS, no third-party libraries
• ✅ Comprehensive Documentation — step-by-step guides included
• ✅ Monetization Ready — built-in in-app purchase system (StoreKit 2)

✨ Key Features

Comprehensive Formula Library

• 10+ 2D shapes (Triangle, Rectangle, Circle, Polygon, etc.)
• 8+ 3D shapes (Sphere, Cube, Cylinder, Pyramid, etc.)
• Area, perimeter, volume, and surface area calculations
• Real-time calculation with interactive controls
• Visual formula representations

Interactive Calculator

• Smooth parameter input controls (sliders and fields)
• Real-time calculation updates
• Unit conversion (metric ↔ imperial)
• Input validation and error handling
• Polished visual feedback and animations

Calculation History

• Automatic saving of calculations
• Search and filtering
• Favorite calculations
• Delete and manage history
• Persistent storage (Core Data)

⭐ Favorites System

• Bookmark frequently used formulas
• Quick access to saved calculations
• Sync across sessions

Beautiful Themes

• 5 built-in themes: Default, Ocean, Sunset, Forest, Lavender
• Smooth theme switching
• Dark mode support
• Customizable color schemes

⚙️ Settings & Preferences

• Unit system selection
• Theme management
• Auto-save preferences
• About & privacy policy screens

Monetization (Optional)

• In-app purchase system
• Pro/Premium unlock
• StoreKit 2 integration
• Restore purchases
• Configurable pricing and product IDs

️ Technical Specifications

Technology Stack

• Language: Swift 5.7+
• UI Framework: SwiftUI (100% SwiftUI, no UIKit)
• Architecture: MVVM (Model-View-ViewModel)
• Minimum iOS: 16.0+
• Xcode: 14.0+
• Devices: iPhone & iPad (Universal)
• Orientation: Portrait & Landscape

Features & Integrations

• Core Data: persistent history + favorites
• StoreKit 2: in-app purchases
• Combine: reactive data flow
• Accessibility: VoiceOver-ready
• Localization: ready for internationalization

Code Quality

• ✅ Clean, readable code with comprehensive comments
• ✅ Modular, reusable components
• ✅ Performance optimized and memory efficient
• ✅ No third-party dependencies

What’s Included

Source Code

• ✅ Complete Xcode project
• ✅ 18 Swift source files
• ✅ AppConfig.swift (central configuration)
• ✅ SwiftUI views, models, services, utilities
• ✅ Core Data model
• ✅ Assets + app icon template

Documentation

• ✅ README.md — project overview
• ✅ RESKIN_MANUAL.md — step-by-step customization guide
• ✅ INSTALLATION_GUIDE.md — setup instructions
• ✅ CODECANYON_LISTING.md — listing reference
• ✅ Inline code comments — every function documented

Assets

• ✅ App icon template
• ✅ Color theme definitions
• ✅ SF Symbols integration
• ✅ Splash screen animations

Customization Made Easy

Quick Reskin in ~5 Minutes

Customize your brand and features from one place: AppConfig.swift

// Change app branding
static let appName = "Your App Name" 
static let appTagline = "Your Tagline" 
static let developerName = "Your Company" 

// Customize colors
static let primaryColor = Color.blue
static let accentColor = Color.orange

// Toggle features
static let enableProFeatures = true
static let showSplashScreen = true

What You Can Customize

• ✅ App name and branding
• ✅ Color themes (5 included; add unlimited more)
• ✅ Splash screen text and visuals
• ✅ Developer info, support email, website
• ✅ In-app purchase product IDs and pricing
• ✅ Feature toggles (Pro unlock, history, favorites, etc.)
• ✅ UI animations and effects

Tip: See RESKIN_MANUAL.md for detailed instructions.

Use Cases

Educational Apps

• Geometry study aids
• Student calculators
• Teacher classroom tools
• Homework helper apps

Professional Tools

• Engineering calculators
• Architecture and design utilities
• Construction measurement tools
• Technical reference apps

Business Opportunities

• White-label builds for schools
• Custom-branded calculators
• Niche calculators (crafts, woodworking, construction)
• Institutional learning apps

Monetization Strategies

Built-in Options

• Freemium Model (Included) — basic shapes free, Pro unlock for advanced features
• One-time Purchase — suggested $4.99 (configurable)

Optional Business Models

• Completely Free — disable IAP and add ads (if desired)
• Subscription — adapt StoreKit logic for monthly/yearly billing
• White-label Licensing — sell customized versions to schools/businesses

Learning Resources

The project is designed to be easy to learn from. Each file includes clear documentation, function-level comments, and usage notes.

/// Calculates the area of a circle given its radius.
/// - Parameter radius: The radius of the circle in the current unit
/// - Returns: The calculated area in square units
func calculateCircleArea(radius: Double) -> Double {
    // Formula: A = πr²
    return Double.pi * radius * radius
}

Easy Setup & Installation

3 Simple Steps

1. Download and extract the project files
2. Open GeoFormulas.xcodeproj in Xcode
3. Run on simulator or device (⌘R)

System Requirements

• macOS Ventura (13.0) or later
• Xcode 14.0 or later
• iOS 16.0+ SDK

See INSTALLATION_GUIDE.md for detailed setup instructions.

Target Audience

• ‍ iOS Developers — complete template, modern SwiftUI patterns, excellent starter base
• ‍ Educators & Schools — branded learning tools, teaching aids, student resources
• Entrepreneurs — educational market entry, white-label opportunities
• Designers — functional app foundation to redesign and showcase

Why This App Stands Out

• ✅ Better Documentation — every function explained
• ✅ Easier Customization — centralized configuration with AppConfig.swift
• ✅ Modern SwiftUI — latest patterns and best practices
• ✅ No Dependencies — smaller, faster, more reliable
• ✅ Production Ready — complete app, not a demo
• ✅ Active Support — help available when needed

Professional Services Available

Need help customizing or launching your app? We offer professional services:

Graphic Design Services

• Custom app icon design
• Splash screen graphics
• UI/UX improvements
• Marketing materials

Custom Development

• Add new formulas or shapes
• Integrate additional features
• Custom calculations
• API integrations

App Store Submission

• Submission process handling
• App Store optimization (ASO)
• Screenshot creation
• Description writing

️ Technical Support

• Installation assistance
• Customization guidance
• Bug fixes
• Code explanations

Contact Us:
choochai.t@chatstickmarket.com
www.chatstickmarket.com
⏱️ Response Time: Within 24 hours
Languages: English, Thai

❓ Frequently Asked Questions

• Q: Do I need programming experience?
  A: Basic iOS development knowledge is recommended. However, the documentation and AppConfig.swift make reskinning straightforward for beginners.
• Q: Can I publish this to the App Store?
  A: Yes. This is a complete, production-ready app. Customize branding and submit following Apple guidelines.
• Q: Are there recurring fees?
  A: No. This is a one-time purchase with lifetime access to the source code (per marketplace terms).
• Q: Can I use this for multiple apps?
  A: Yes—create multiple niche versions. Please follow CodeCanyon license rules for your purchase type.
• Q: Do you provide updates?
  A: Yes. Buyers receive updates for bug fixes and iOS compatibility improvements.
• Q: Do you offer customization services?
  A: Yes. Email us for design, development, or App Store submission services.

Download Includes

GeoFormulas/
├── Source Code (18 Swift files)
├── README.md
├── RESKIN_MANUAL.md
├── INSTALLATION_GUIDE.md
├── Assets & Icons
└── Xcode Project File

Total File Size: ~2 MB (lightweight and efficient)

✅ Quality Guarantee

• ✅ Tested on iOS 16, 17, and 18
• ✅ Stable performance (no crashes)
• ✅ Clean Swift best practices
• ✅ Thorough documentation
• ✅ Support included

Get Started Today

Turn this professional geometry calculator into your own unique app. With comprehensive documentation, easy customization, and professional support, you can launch faster and focus on your brand.

Ready to Build Your App?

1. Purchase and download the files
2. Follow INSTALLATION_GUIDE.md
3. Customize using RESKIN_MANUAL.md
4. Publish to the App Store

Launch Your Geo App

Thank You

Thank you for considering GeoFormulas! We’re excited to see what you’ll create with this template. If you enjoy it, please leave a rating and review—it helps us continue building high-quality products.

Happy Coding! ✨