Use case

Build a SaaS app with AI — auth, billing, and admin included

Onboarding, subscriptions, team management, admin, and analytics — AI-generated and patch-safe.

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At a glance

Output
Web app + native iOS/Android + admin
Auth
Email, Google, and magic link
Billing
Stripe subscriptions with trial logic and webhooks
Multi-tenant
Workspace + roles (owner, admin, member)
Stack
Next.js web, Expo native, Postgres, Stripe
Time to first preview
Under five minutes

Example prompt

“Build a SaaS web and native app with email and Google auth, onboarding, Stripe subscriptions, team management, admin dashboard, and analytics.”

What AppGenie generates

AppGenie generates a full SaaS starter: auth, onboarding, subscription billing, team management, admin dashboards, and analytics, all in native with a matching web admin if you need it.

Auth and onboarding

Email, Google, and magic link sign-in.

Stripe subscriptions

Monthly and annual plans, trial logic, webhooks.

Team management

Invite, roles, and permissions.

Admin dashboard

Usage, billing, and tenant management.

Inside the saas app AppGenie ships

A breakdown of the concrete features wired into the first generated build, grouped by area.

Auth and onboarding

  • Email + password, magic link, and Google sign-in
  • Email verification and password reset flows
  • Workspace creation on first sign-in
  • Goal-based onboarding tour

Billing

  • Free tier and paid plans with feature gating
  • Stripe subscription checkout with monthly/annual toggle
  • Trial logic, proration, and plan upgrades/downgrades
  • Stripe webhook handler for invoice and subscription events
  • Self-serve billing portal link

Team and admin

  • Invite teammates by email with role selection
  • Roles: owner, admin, member with permission checks
  • Admin dashboard for tenants, users, and billing
  • Audit log of significant actions

Screens you get out of the box

  • Sign in
  • Onboarding
  • Dashboard
  • Billing
  • Team
  • Admin
  • Settings

Key screens, and what each one does

  1. Sign in / Sign up

    Email, magic link, and Google sign-in with verification.

  2. Onboarding

    Create or join a workspace and pick a plan or trial.

  3. Dashboard

    Workspace home with key metrics and recent activity.

  4. Billing

    Plan, payment method, invoices, and upgrade/downgrade.

  5. Team

    Members list, invites, role changes, and removal.

  6. Admin

    Cross-tenant view of workspaces, users, and billing health.

  7. Settings

    Profile, workspace preferences, and integrations.

Data model sketch

The default entities AppGenie scaffolds for a saas app. Edit the spec at sign-off to add fields, drop entities, or rename anything.

User

  • id
  • email
  • name
  • avatarUrl
  • createdAt
  • lastLoginAt

Workspace

  • id
  • name
  • slug
  • plan
  • stripeCustomerId
  • createdAt

Membership

  • id
  • userId
  • workspaceId
  • role
  • invitedAt
  • joinedAt

Invitation

  • id
  • workspaceId
  • email
  • role
  • token
  • expiresAt

Subscription

  • id
  • workspaceId
  • plan
  • status
  • currentPeriodEnd
  • stripeSubscriptionId

AuditLog

  • id
  • workspaceId
  • actorId
  • action
  • target
  • createdAt

Example prompts to start from

Paste any of these into the AppGenie builder to kick off a new saas app, then refine from chat.

“Build a SaaS web app with email + Google auth, workspaces, Stripe subscriptions (Free/Pro), team invites, and an admin dashboard.”

“Build a B2B SaaS for project management with workspaces, three roles, Stripe billing, and a Slack integration stub.”

“Add per-seat billing where each member added increments the Stripe quantity.”

“Add a "switch workspace" picker in the top nav and persist the selection per user.”

How to build a saas app with ai

  1. 1

    Describe the SaaS

    Outline plans, roles, and integrations.

  2. 2

    Approve the spec

    Data, auth, and billing laid out.

  3. 3

    Iterate

    Patch-based updates as you refine.

  4. 4

    Ship

    Deploy to production.

How AppGenie builds your saas app

A look at the multi-agent pipeline that turns your prompt into a generated codebase.

  1. 1

    A1 picks the SaaS preset

    IntentClassifier reads "SaaS" and routes to the multi-tenant + billing pipeline.

  2. 2

    A3 drafts auth, plans, and roles

    PRDWriter outlines the auth flow, subscription plans, role matrix, and admin scope for sign-off.

  3. 3

    A4 + A5 generate the codebase

    Architect plans workspaces, billing, and admin; CodeGenerator wires Stripe, magic links, and role guards.

  4. 4

    A6 validates and snapshots

    Validator runs a build check; the version snapshot lets you experiment with auth changes safely.

The bottom line

Most SaaS MVPs spend the first month re-implementing the same auth, billing, and admin scaffolding. AppGenie collapses that month into a single pipeline run — leaving you to start on the actual product on day one.

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SaaS app — FAQ

Can AppGenie handle Stripe subscriptions?

Yes. The SaaS prompt scaffolds the Stripe subscription flow, including trial logic and webhook handlers.

Ready to build a saas app with ai?

Describe it once. AppGenie generates a full production codebase you own, with live preview and diff-aware updates.

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