What Is TurboStarter?
TurboStarter is a production-ready SaaS starter kit aimed at AI-native founders. It bundles a web app, a mobile app, and a browser extension into one unified codebase, so you skip the initial setup work and get to a launchable, monetizable product faster. It is built on Next.js for web, React Native (Expo) for mobile, and WXT (Vite) for the browser extension. If your goal is to ship a cross-platform SaaS without assembling auth, billing, and infrastructure from scratch, this is the problem it targets.
What problem it solves
The core pitch is "focus on your product, not setup." Instead of wiring together authentication, payments, database, email, and analytics before you can validate an idea, TurboStarter ships those as out-of-the-box modules. The site frames the value as time saved (it cites an example of 8 hours saved) and getting you to your first revenue faster.
What's included
The kit is organized as a monorepo with shared packages and three app targets:
| Area | What it covers |
|---|---|
| Apps | web, mobile, extension |
| Packages | ai, analytics, api, auth, billing, cms, db, email, i18n, monitoring, shared, storage, ui, tooling |
| Auth | Email/password, magic link, social login (Apple, Google, GitHub), two-factor, passkey, OTP |
| Billing | Subscriptions, one-time payments, metered usage, per-seat, credits, org billing |
| Payments | Stripe, Lemon Squeezy, Polar, Dodo Payments (web); RevenueCat, Superwall (mobile) |
The repo also ships agent-oriented files (AGENTS.md, CLAUDE.md, .agents with commands and skills), which is consistent with the "AI-first" positioning — the codebase is set up to be worked on with AI coding tools.
Cross-platform from one codebase
The differentiator the site emphasizes is building for web, mobile, and browser extension simultaneously from a unified codebase. That matters if your product needs more than a website — for example, a mobile companion app plus a browser extension that hooks into a third-party site. Rather than maintaining three separate projects, you share packages like ui, auth, db, and billing across targets.
Who it's for
- Founders who already know what they want to build and don't want to spend weeks on boilerplate.
- Teams that need web, mobile, and extension surfaces and want one codebase.
- Developers who want billing and auth integrations (Stripe, Lemon Squeezy, Polar, Dodo, RevenueCat, Superwall) pre-wired rather than researched and assembled.
It is less useful if you're building a single simple web page, or if you want to avoid a specific stack — the kit commits you to Next.js, Expo, and WXT.
Practical notes before you decide
- The site references licensing and a limited number of licenses before a price increase ("Only 5 licenses left before price increase"), and links to Lemon Squeezy checkout pages. Check the current price and license terms directly on those pages, since they can change.
- "Production-ready" here means the modules are wired and integrated; you still customize them for your product and deploy.
- The billing docs cover each provider separately (Stripe, Lemon Squeezy, Polar, Dodo Payments for web; RevenueCat, Superwall for mobile), so you can pick the one that fits your market rather than being locked to a single processor.
If your decision hinges on whether the included auth and billing flows match your requirements, the fastest check is to read the billing and auth docs and confirm the providers and flows you need are covered before buying a license.