Stop building auth,
database, and payments
from scratch.
Building the same integrations on every new app costs $16,800+ and 8-12 weeks. Beyondkitter gives you 5 production-ready mobile stacks with the hard parts already done.
import { useAuth } from '@clerk/clerk-expo';
import { usePurchases } from '@/hooks/use-purchases';
export default function HomeScreen() {
const { user } = useAuth();
const { isPro } = usePurchases();
// Auth, DB, IAP, all wired up
}Each stack uses its own native patterns. No copied wrappers.
Building this yourself
costs $16,800+
Auth, database, payments, notifications, offline sync, storage, analytics. Here's what each piece costs to build from scratch.
What you get
Each item works out of the box. No third party setup.
Authentication that works everywhere
Social logins, biometrics, passkeys, and MFA. Clerk handles the auth UI, token refresh, and session management so you build screens instead of login flows.
StoreKit 2 and Play Billing, not just Stripe
RevenueCat handles receipts, subscription states, and cross-platform sync. Each stack uses its native purchase API — StoreKit 2 on iOS, Play Billing on Android.
5 stacks, each using native patterns
Expo Router for React Native. Riverpod for Flutter. NavigationStack for SwiftUI. Hilt for Kotlin. WorkManager for Java. No copied wrappers.
One monorepo, not five repos
Shared types, shared utilities, shared business logic. Change the API contract once and it propagates across all stacks.
Database with real security policies
Supabase Postgres with Row Level Security. Your data queries run through server-enforced policies, not client-side checks that users can bypass.
AI Gateway for 4 providers
Grok, OpenAI, Anthropic, DeepSeek. One API key, automatic fallback when a provider is down. Runs through Supabase Edge Functions.
AI rules your editor actually reads
AGENTS.md and .cursorrules tell Cursor, Windsurf, and Claude Code your project structure, conventions, and constraints. No more guessing.
Ship to both stores on day one
App Store and Play Store build configs are pre-configured. EAS Build for Expo, Xcode for Swift, Gradle for Kotlin and Java.
Four steps to a working app
Buy it, clone it, configure it, ship it.
Clone
Buy it, download the ZIP, and extract it. Auth, database, and payments are in.
Configure
Rename a few values. Add your Clerk, Supabase, and RevenueCat keys.
Build
Use Cursor or Claude with AGENTS.md to add screens and business logic.
Ship
Run the build command. Submit to the App Store and Play Store.
Beyondkitter
Everything you need to ship
Questions and answers
Beyondkitter gives you 5 mobile stacks in one repo: React Native Expo, Flutter, SwiftUI, Kotlin, and Java. Each stack has Clerk Auth, Supabase with RLS, and RevenueCat wired up. Clone it, configure it, and ship.
Buy Beyondkitter, download the ZIP, and extract it. Each stack has auth, database, and payments wired up. Configure your keys and start building.
5 mobile starter architectures, Clerk Authentication, Supabase Postgres with Row Level Security, RevenueCat in app purchases, a Universal AI Gateway for Grok, OpenAI, Anthropic, and DeepSeek, plus AI context rules for Cursor, Windsurf, Claude Code, and OpenCode.
$54, one time. Lifetime access to all 5 stacks and every integration. No subscriptions, no seat limits.
Yes. Every stack targets the App Store and Play Store. Clerk Auth with biometrics, Supabase with Row Level Security, and RevenueCat for monetization.
Learn more
Deep dive into our stacks, comparisons, and guides.
Ready to ship?
Five stacks, one purchase, 15 minutes to get started.