Last updated: March 2026
SwiftUI Boilerplate Features — Everything Indie iOS Developers Need in 2026
The Swift Kit is the best SwiftUI boilerplate for 2026. Explore every module included in this production-ready iOS app starter kit — from the centralized design system to feature flags to AI integrations.
Centralized 5-Layer Design System
- Edit one file — DesignSystem.swift — and the entire app rethemes automatically
- Five surface styles: Flat, Bordered, Elevated, Glass, and Liquid Glass (iOS 26+)
- Brand colors, spacing density, corner radius, shadows, and motion tokens
- New screens automatically inherit the design system using DS building blocks
Feature Flags
- Toggle entire modules on/off with a single boolean
- Modules: onboarding, authentication, paywall, notifications, AI features, Apple Sign-In
- Disabled features disappear completely — no broken navigation, no leftover screens
- The setup CLI configures flags during project creation
Interactive Setup CLI
- Run ./setup.sh — guided walkthrough for the entire project configuration
- Choose app name, brand colors, surface style, features, backend, and API keys
- Automatically regenerates the Xcode project — no manual file editing
- Most developers have a running app in under 5 minutes
SwiftUI Onboarding Screen Templates
- Three beautiful onboarding templates: Carousel, Highlights, and Minimal
- Animated previews with smooth SwiftUI transitions
- Full light/dark mode support with customizable design tokens
- Switch styles with a single config change
Authentication — Sign in with Apple & Supabase SwiftUI
- Sign in with Apple integration — pre-wired and ready to enable
- Email/password authentication via Supabase
- Automatic session management and token refresh
- Complete Supabase SwiftUI integration with RLS policies
- Profile setup flow after first sign-in
SwiftUI Paywall Templates — RevenueCat & StoreKit 2
- Production-ready SwiftUI paywall templates
- RevenueCat integration with StoreKit 2 — no StoreKit 2 vs RevenueCat headaches
- Subscription offerings, free trials, and restore purchases
- Entitlement management and server-side validation
- Graceful fallback to demo offerings if API key is missing
SwiftUI ChatGPT & AI Integration
- SwiftUI ChatGPT integration with streaming responses
- DALL·E image generation (gpt-image-1.5) — build an AI app in Swift
- Vision API for image analysis and understanding
- Secure Flask proxy backend for API key protection
- Completely optional — gated behind a feature flag
Supabase Backend & Database
- Full Supabase SwiftUI integration — Auth, Postgres, Storage
- Row Level Security policies pre-configured
- Edge Functions and webhooks ready
- Storage buckets for user content
Analytics, Notifications & Indie Developer Tools
- TelemetryDeck analytics — privacy-first event tracking
- Push notifications (local + APNs) with debugging inspector
- MVVM architecture with dependency injection
- Built by and for indie iOS developers who ship fast
Get The Swift Kit — $99
One-time purchase. Full source code ownership.