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

Author
Kaspar Noor
Published
March 23, 2026
Mobile SaaS Starter Blueprint: Expo + Supabase + RevenueCat + PostHog
This is the most common indie app shape

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

1
Onboarding
Collect just enough information to personalize the first-run experience and get the user to their first meaningful action.
2
Authentication
Use Supabase for account creation, session restore, magic links, and social login entry points.
3
Premium boundary
Use RevenueCat entitlements to decide which screens, actions, or limits are free versus paid.
4
Product instrumentation
Track the funnel: onboarding completed, paywall viewed, checkout started, purchase completed, premium feature used.
5
Retention loops
Add push notifications, in-app prompts, and feature flags after the core product loop is already working.

Core screens

Welcome and onboarding flow
Authentication stack
Home or dashboard screen
Paywall and pricing explanation
Premium feature screen
Account and billing management screen
Settings and notification preferences
Support or feedback entry point

Data model to plan early

Even a lean SaaS app usually needs these concepts:

  • users
  • profiles
  • subscription_status
  • plans or entitlements
  • events or 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

  1. Get auth stable.
  2. Instrument the activation funnel.
  3. Add a paywall only after the product loop is understandable.
  4. 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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