Comparison
Beyondkitter vs alternatives
Beyondkitter gives you 5 mobile stacks (React Native, Flutter, SwiftUI, Kotlin, Java) for $54 one-time. Buying the same stacks individually costs $300+. Building from scratch costs $16,800+ and 8-12 weeks of development time.
Price comparison
Beyondkitter
5 mobile stacks in one repo
Auth: Clerk (social, biometrics, passkeys)
DB: Supabase (Postgres + RLS)
Payments: RevenueCat (StoreKit 2 + Play Billing)
Platforms: iOS + Android
Single-Stack Boilerplate
1 stack (buy separately)
Auth: Varies (often Firebase)
DB: Varies (often Firebase)
Payments: Varies (often Stripe only)
Platforms: iOS OR Android
Firebase Starter
1 stack
Auth: Firebase Auth
DB: Firestore (no RLS)
Payments: No IAP support
Platforms: iOS OR Android
Build from Scratch
1 stack (your choice)
Auth: Custom setup
DB: Custom setup
Payments: Custom integration
Platforms: Your choice
Feature-by-feature
| Feature | Beyondkitter | Single-Stack | Firebase | Scratch |
|---|---|---|---|---|
| Stacks Included | ||||
| React Native Expo | ||||
| Flutter | ||||
| SwiftUI (iOS) | ||||
| Kotlin Compose (Android) | ||||
| Java Android | ||||
| Integrations | ||||
| Clerk Auth (social + biometrics) | ||||
| Supabase DB with Row Level Security | ||||
| RevenueCat IAP + Paywalls | ||||
| Universal AI Gateway (4 providers) | ||||
| AI Context Rules (AGENTS.md) | ||||
| Value | ||||
| Commercial license included | ||||
| Lifetime updates | ||||
| iOS + Android in one repo | ||||
| No vendor lock-in (Supabase over Firebase) | ||||
Cost to buy stacks separately
Total buying separately
$300-725+
Beyondkitter (all 5)
$54
Why not Firebase?
No Row Level Security
Firestore relies on client-side security rules. Supabase uses Postgres RLS policies that run on the server, giving you real data isolation per user.
No native IAP support
Firebase has no built-in in-app purchase integration. RevenueCat handles StoreKit 2, Play Billing, receipts, and subscription management across platforms.
Vendor lock-in
Firebase ties you to Google's ecosystem. Supabase is open-source Postgres you can self-host or migrate away from at any time.
No Clerk-level auth
Firebase Auth lacks passkeys and biometrics. Clerk provides social logins, biometrics, passkeys, MFA, and a managed user dashboard.
Cost to build from scratch
Total from scratch
$16,800+
Plus 8-12 weeks of dev time
See the difference
5 stacks, 1 purchase, 15 minutes to start.
Get Beyondkitter, $54