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Frequently asked questions

12 questions

What is supastack?

supastack is a modular foundation for building AI-powered SaaS products. It brings together common infrastructure so you can focus on product-specific features.

Does it support web and mobile?

Yes. supastack includes Next.js and Expo apps as starting points for web and mobile experiences.

What authentication is included?

Better Auth covers email/password, OTP, and social sign-in. Personal workspaces are provisioned with the account so product records stay scoped from day one.

How does it support AI?

supastack includes configurable multi-provider AI, usage tracking, budgets, and encrypted bring-your-own-key support.

How are subscriptions handled?

For products built on the kit, Stripe billing, subscriptions, and entitlements form the paid-access foundation. Provider secrets stay server-only.

Where does my product-specific code live?

Product-specific features remain in a separate codebase while the product configures and integrates supastack’s foundation modules.

How does supastack pricing work?

The kit is a one-time purchase with lifetime updates: One Framework at $249 or All Frameworks (Next.js, iOS, Android) at $499, plus $75 per extra developer seat. No kit subscription. Checkout on this site is not connected yet.

How do workspaces scope my data?

User-owned records are scoped by workspaceId. Identity, entitlements, AI usage, billing events, and audit entries stay inside the personal workspace boundary.

How do background jobs work?

Trigger.dev is the explicit job runtime. The JobRunner contract only promises enqueue, status, and cancel—workflow semantics stay Trigger.dev-specific and explicit.

How is email different from outreach?

Transactional email covers product workflows such as completion notices. Cold outreach and campaigns are product concerns outside this kit’s email module.

Can mobile expose Stripe Checkout?

Not yet. Mobile must not present Stripe Checkout until RevenueCat exists. Web can use Stripe for subscriptions and entitlements when billing is configured.

Where do AI provider keys live?

Bring-your-own-key credentials are encrypted and stay server-only. Keys are redacted from logs; usage and budgets remain visible at the workspace level.

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Build your product. Not the infrastructure.

Start with authentication, billing, AI, and background jobs already connected. Build the features your customers are here for.

Explore the modulesSee the architecture

Built with familiar tools

  • Next.js
  • Expo
  • Stripe
  • Trigger.dev

Everything that comes with supastack.

Explore the infrastructure, interfaces, and controls already included.

More

Ship web and mobile from one foundation.

Next.js and Expo share TypeScript modules so agents and humans extend one codebase instead of forking surfaces.

  • Next.js web application
  • Expo for iOS and Android
  • Shared TypeScript modules
  • Same auth and AI contracts
  • Works with Cursor and Claude Code
Learn more
  • Next.js
  • Expo
  • TypeScript

Explore every feature.

Web + mobile

  • Next.js web application
  • Expo for iOS and Android
  • Shared TypeScript modules
Learn more

Authentication

  • Email and password
  • One-time passwords
  • Google and Apple sign-in
Learn more

Billing

  • Stripe subscriptions
  • Checkout and customer portal
  • Entitlements for product access
Learn more

AI

  • Configurable model providers
  • Encrypted bring-your-own-key
  • Usage tracking and budgets
Learn more

Jobs + email

  • Trigger.dev background jobs
  • Enqueue, status, and cancel
  • Transactional product email
Learn more

Audit

  • Workspace-scoped audit records
  • Provider configuration history
  • Analytics and error monitoring
Learn more

Workspaces

  • Personal workspace provisioning
  • Workspace-scoped records
  • Membership and access boundaries
Learn more

Email

  • Transactional message delivery
  • Configurable email providers
  • Separate from outreach campaigns
Learn more

Key storage

  • Encrypted key vault
  • Server-side provider calls
  • Sensitive-value redaction
Learn more

Usage budgets

  • Input and output token tracking
  • Estimated request costs
  • Workspace budget checks
Learn more

Analytics

  • Structured product events
  • Workspace context
  • Redacted event properties
Learn more

Error monitoring

  • Exception capture
  • Workspace tags
  • Sanitized error context
Learn more

See how the code fits together.

Shared infrastructure below. Your product-specific features above. Web and mobile use the same foundation.

Inside supastack

IdentityBillingAIJobsEmailAudit

Six modules. One connected foundation.

Choose the model. Control the rest.

Provider choice, private keys, and usage limits are part of the same AI foundation.

OOpenAI✓
Requestmodel: fast
Response
Complete
AAnthropic✓
Requestmodel: smart
Response
Complete
{ }Compatible API✓
Requestmodel: cheap
Response
Complete
Request queue

One AI interface

Model aliases resolve through your routing policy.

Illustrative routing

One-time purchase. Lifetime updates.

No subscriptions. Choose one surface or all three. Extra developers are $75 each.

Choose your framework

Next.js for web · Expo / React Native for iOS and Android

One Framework

Launch on your chosen platform with the infrastructure already connected.

one-time$249

  • Next.js web app with Stripe billing
  • Authentication and personal workspaces
  • Configurable AI providers and model controls
  • Background jobs and transactional email
  • Audit logs and observability
  • Documentation and a working reference app
  • Lifetime updates
Developers
1

3 developers: $399

All Frameworks

Build for web and mobile on one shared foundation.

one-time$499

  • Next.js web + Expo / React Native for iOS and Android
  • Authentication and personal workspaces
  • Configurable AI providers and model controls
  • Background jobs and transactional email
  • Audit logs and observability
  • Documentation and a working reference app
  • Lifetime updates

Includes Stripe billing for web and shared backend modules across all three surfaces.

Developers
1

5 developers: $799

Checkout is not connected yet

Start with the foundation.Build what comes next.

Bring your product idea to a modular starting point for web, mobile, and AI-powered SaaS.

Explore the modulesSee the architecture