Grammar Master — Complete iOS Grammar Learning App

SwiftUI • White-Label Ready • StoreKit 2 In-App Purchases • iOS 17+ • Complete Source Code

Grammar Master is a complete, production-ready iOS app template that helps you launch a professional grammar learning app on the App Store quickly. Built with the latest iOS technologies and designed for fast, white-label customization, it’s ideal for developers, entrepreneurs, and agencies entering the education app market.

✨ Why Choose Grammar Master?

Launch Faster

• Ready-to-customize, no need to build from scratch
• Save 200+ hours of development time
• Professional quality code & UI design

Proven Monetization

• Built-in In-App Purchase system (StoreKit 2)
• Three-tier pricing model
• One-time purchase model (no subscriptions by default)
• Freemium setup with 40% content free (fully configurable)

Easy White-Label Customization

• Centralized AppConfig.swift for fast reskin
• Change colors using a single hex code
• Replace branding quickly (name, logo, company, support)
• No deep Swift knowledge required for basic reskin

Rich Content Included

• 74 comprehensive grammar rules
• 235+ interactive quiz questions
• 32 punctuation guides with examples
• Content for beginner → advanced learners

Professional Quality

• Modern SwiftUI architecture
• MVVM pattern (clean and maintainable)
• iOS 17.0+ support
• Heavily commented, production-ready code

What’s Included

Grammar Rules Module

• 74 detailed grammar rules with clear explanations
• Real-world examples for each rule
• Difficulty levels: Beginner, Intermediate, Advanced
• Category-based organization
• Bookmarks for favorite rules
• Search support for fast discovery

✍️ Interactive Quizzes

• 235+ multiple-choice questions
• Three difficulty levels
• Instant feedback with detailed explanations
• Progress tracking + score history
• Random quiz generator
• Topic-specific quizzes

Smart Search

• Instant search across grammar rules
• Filter by category, difficulty, tags
• Recent search history
• Voice-search ready structure (framework included)
• Advanced filtering options

✒️ Punctuation Guide

• Complete punctuation reference
• 32 punctuation rules
• Real-world usage examples
• Common mistakes guidance

⚙️ Settings & Customization

• 10 themes included (4 free, 6 Pro)
• Light & dark mode support
• Notification preferences
• About screen
• Terms of Service & Privacy Policy pages

In-App Purchase System

• StoreKit 2 integration
• Three product tiers
• One-time purchase model
• Restore purchases
• Purchase validation
• Sandbox testing ready

Bookmarks System

• Save favorite rules, punctuation, and quizzes
• Organized by type
• Swipe to delete
• Unlimited bookmarks for Pro users

️ Technical Specifications

Built with Modern iOS Technologies

• Language: Swift 5.9+
• UI: SwiftUI (100% native, no UIKit)
• Architecture: MVVM
• Storage: Core Data
• Minimum iOS: 17.0+
• Xcode: 15.0+
• IAP: StoreKit 2
• Notifications: UserNotifications

Key Engineering Highlights

• ✅ Clean architecture (MVVM + repository pattern + dependency injection)
• ✅ Modular, feature-based structure with reusable components
• ✅ Modern APIs (SwiftUI navigation, async/await, Combine where needed)
• ✅ Performance optimized (lazy loading, efficient Core Data queries)
• ✅ Well-documented (inline comments + function-level docs)

Included Files & Documentation

Source Code

• Complete Xcode project
• All Swift source files
• Core Data model
• JSON content files
• Asset catalog (colors, icons)

Documentation

• README.md — overview and features
• INSTALLATION_GUIDE.md — quick setup instructions
• RESKIN_GUIDE.md — complete customization walkthrough (40+ pages)
• CODECANYON_DESCRIPTION.md — marketing copy and overview
• AppConfig.swift — centralized config (heavily commented)

Content Files (JSON)

• seed_rules.json — 74 grammar rules
• seed_quizzes_beginner.json — beginner quizzes
• seed_quizzes_intermediate.json — intermediate quizzes
• seed_quizzes_advanced.json — advanced quizzes
• seed_punctuation.json — 32 punctuation guides

Customization Made Easy

AppConfig.swift — One-Stop Configuration

Change most of the app in one place:

// App Branding
static let appName = "Your App Name" 
static let primaryColorHex = "#2ECC71" 

// Company Information
static let companyName = "Your Company" 
static let supportEmail = "support@yourcompany.com" 

// Monetization
static let freeContentPercentage = 0.40

// Product IDs
static let basicPro = "com.yourcompany.yourapp.pro.basic"

What You Can Customize

• ✅ App name and tagline
• ✅ Color scheme (10+ presets)
• ✅ App icon and images
• ✅ Company & support information
• ✅ Terms & Privacy pages
• ✅ Content (rules, quizzes, punctuation)
• ✅ Freemium settings (free vs paid content)
• ✅ Product IDs and pricing strategy
• ✅ Feature flags (enable/disable modules)
• ✅ UI settings (animations, spacing, fonts)

Unique Selling Points

1. Production-Ready Code — complete app, tested and App Store-ready.
2. Comprehensive Documentation — 50+ pages covering setup, reskin, and deployment.
3. Real Content Included — 74 rules and 235+ quizzes (no filler text).
4. Modern SwiftUI Architecture — MVVM + best practices (no outdated UIKit).
5. Monetization Built-In — StoreKit 2 freemium model included and tested.
6. Beautiful UI — professional design with themes and dark mode.
7. Easy Customization — centralized config for fast white-label delivery.
8. Active Support — professional services available.

Perfect For

• Developers: launch fast, learn SwiftUI + StoreKit 2, build a strong portfolio.
• Entrepreneurs: enter education market quickly with proven freemium monetization.
• Agencies: white-label for clients, fast turnaround, easy upsell for custom features.
• Educators: customize content for curriculum, monetize educational materials.

Market Opportunity

• Education app market growth continues strongly worldwide
• Grammar learning: high demand, relatively low competition
• Global English learners: ~1.5B+ potential users
• Evergreen content: low maintenance over time

Getting Started

Step 1: Installation (5 minutes)

1. Download and extract files
2. Open the .xcodeproj in Xcode
3. Build and run

Step 2: Quick Customization (30 minutes)

1. Open AppConfig.swift
2. Change app name, colors, and company information
3. Build and see your branded app

Step 3: Advanced Customization (2–4 hours)

• Replace app icon
• Update legal documents
• Configure in-app purchases
• Customize content (JSON)

Step 4: App Store Submission (1–2 hours)

• Prepare screenshots and description
• Create app in App Store Connect
• Configure IAP products
• Submit for review

Total: launch in one weekend ⚡

Screenshots Suggestions

• Grammar Rules List
• Rule Detail View (readable typography)
• Quiz Interface
• Quiz Results + explanations
• Search with filters
• Punctuation Guide
• Theme selection (10 themes)
• Settings screen
• Purchase wall (IAP)
• Dark mode

Monetization Strategy

Freemium Model (Configurable)

• Free Tier (40% content):
  • 30 grammar rules
  • 13 punctuation guides
  • 98 quiz questions
  • Basic themes
  • Search
• Pro Tier (One-Time Purchase):
  • All 74 grammar rules
  • All 32 punctuation guides
  • All 235+ quiz questions
  • 6 premium themes
  • Unlimited bookmarks
  • Priority support

Three Pricing Tiers (Suggested)

• Basic Pro: $9.99
• Premium Pro: $19.99
• Ultimate Pro: $29.99

Example revenue scenario:
1,000 users × 20% conversion × $15 average = $3,000/month
(Results vary based on marketing and pricing.)

✅ Quality Assurance

• ✅ Builds cleanly in Xcode 15+
• ✅ Runs on iOS 17+ (iPhone and iPad)
• ✅ Tested workflows and core features
• ✅ No placeholder content
• ✅ Includes Terms & Privacy pages
• ✅ Accessibility considerations included

Support & Services

Included Support

• Documentation (50+ pages)
• Inline code comments
• Email support for setup questions

Professional Services (Optional)

Graphic Design Service (from $299)

• Custom app icon
• App Store screenshot designs
• Logo & branding pack
• Marketing materials

Complete Customization Service (from $499)

• Full white-label reskin
• Content modifications
• Feature adjustments
• Testing and QA

App Store Submission Service (from $199)

• App Store Connect setup
• IAP configuration
• Submission & review management

VIP Package (from $999)

• Custom design + full customization
• App Store submission
• Post-launch support (30 days)
• Marketing assets package

Contact
choochai.t@chatstickmarket.com
www.chatstickmarket.com
Response time: within 24 hours (business days)

Package Contents

Grammar Master/
├──  Source Code
│   ├── Complete Xcode project
│   ├── SwiftUI views and components
│   ├── View models and business logic
│   ├── Core Data models
│   ├── Repository implementations
│   └── Service layer code
│
├──  Content Files (JSON)
│   ├── 74 grammar rules
│   ├── 235+ quiz questions
│   ├── 32 punctuation guides
│   └── Complete educational content
│
├──  Assets
│   ├── App icons (all sizes)
│   ├── Color sets
│   ├── SF Symbols integration
│   └── Theme presets
│
├──  Documentation
│   ├── README.md
│   ├── INSTALLATION_GUIDE.md
│   ├── RESKIN_GUIDE.md
│   ├── CODECANYON_DESCRIPTION.md
│   └── FREEMIUM_IMPLEMENTATION.md
│
└── ⚙️ Configuration
    ├── AppConfig.swift
    ├── FreemiumConfiguration.swift
    ├── Info.plist
    └── .xcconfig files

⚡ Technical Requirements

• macOS: 13.0+ (Ventura or later)
• Xcode: 15.0+ (free from Mac App Store)
• Minimum iOS: 17.0+
• Apple Developer Account: required for App Store publishing ($99/year)
• Dependencies: none (100% native frameworks)

Compare to Building From Scratch

<thead> </thead> <tbody> </tbody>

Feature	From Scratch	Grammar Master Template
Development Time	3–6 months	1 weekend
Cost (Freelancer)	$15,000–$40,000	$49
In-App Purchases	40+ hours to implement	Included & tested
Content Creation	Weeks of work	74 rules + 235+ quizzes included
Documentation	Often minimal	50+ pages comprehensive
Design	Need a designer	Professional UI included
Testing	Extensive time needed	Pre-tested & verified
Updates	Your responsibility	Support provided

Total savings: significant time and cost, with a faster path to market.

❓ Frequently Asked Questions

General

• Can I publish to the App Store? Yes — designed for commercial App Store release.
• Do I get full source code? Yes — complete source, no obfuscation.
• Can I edit the content? Yes — content is in easy-to-edit JSON files.
• Do I need programming experience? Basic Swift helps, but the guides walk you through setup and reskin.

Technical

• Supported iOS? iOS 17.0+ (compatible with the latest iOS versions).
• iPad support? Yes — universal iPhone + iPad app.
• Third-party libraries? None — 100% native frameworks.
• Dark mode? Yes — included across the app.

Monetization

• Are IAPs working? Yes — StoreKit 2 implementation is included and sandbox-ready.
• Can I change pricing? Yes — set prices in App Store Connect.
• Can I adjust freemium rules? Yes — configure free vs paid content in AppConfig.swift.

License & Usage

• You CAN: publish to App Store, reskin, modify code, use for client projects, sell resulting apps.
• You CANNOT: resell/redistribute the template source code, or create competing templates.

One license = one end product. For multiple projects, please purchase additional licenses.

Bonus Materials Included

• 10 color themes (ready-made presets)
• App Store description template
• Screenshot template guidance
• ASO keywords starter list
• Privacy Policy & Terms templates
• Launch checklist (submission guide)
• Marketing tips

Ready to Launch?

Don’t spend months building from scratch. Launch your grammar learning app with production-ready code, real content, monetization, and documentation—all included.

✅ Add to Cart & Start Building

Pre-Sale Questions / Support

choochai.t@chatstickmarket.com
www.chatstickmarket.com
Response time: within 24 hours • Business hours: Mon–Fri, 9:00–18:00 (GMT+7)

Package Information

• Item Name: Grammar Master — Complete iOS App Template
• Compatible: Xcode 15.0+, iOS 17.0+, SwiftUI
• Files Included: Swift, JSON, Xcode Project, Documentation
• Documentation: Comprehensive (50+ pages)
• Support: Email support included
• Updates: Free updates for 1 year

Grammar Master — Built with ❤️ by professional iOS developers.