Mobile SaaS Starter Blueprint: Expo + Supabase + RevenueCat + PostHog

If your app needs sign-in, onboarding, subscriptions, a premium boundary, and analytics, this blueprint gets you from blank repo to a product-shaped architecture fast.
What this starter blueprint includes
- Expo for the cross-platform app shell
- Supabase for identity and backend data
- RevenueCat for subscriptions and premium access
- PostHog for product analytics and feature flags
- Sentry for crash and error visibility
That stack is not trendy for the sake of being trendy. It is practical. Each tool solves a product problem you would otherwise rebuild.
Recommended feature map
Onboarding
Authentication
Premium boundary
Product instrumentation
Retention loops
Core screens
Data model to plan early
Even a lean SaaS app usually needs these concepts:
usersprofilessubscription_statusplansorentitlementseventsor tracked behavior- one or two domain-specific entities that represent the actual product
The mistake is treating subscription state like a UI concern. It should be a first-class product concept from the start.
What makes this blueprint useful for AI too
AI tools are much more reliable when the architecture is obvious:
- auth has one home
- billing has one home
- analytics events are named intentionally
- premium access is derived, not scattered
That keeps prompts shorter and changes safer.
The launch sequence
- Get auth stable.
- Instrument the activation funnel.
- Add a paywall only after the product loop is understandable.
- Add notifications and flags once you can measure behavior.
If you reverse that order, the app usually feels busy before it feels useful.
Shipnative is built for exactly this blueprint: product-first mobile SaaS apps that need infrastructure done early so feature work can start immediately.
Start from a product-shaped foundation
Shipnative gives you the auth, billing, analytics, and launch plumbing for the most common mobile SaaS stack so you can focus on what makes the app worth paying for.
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