Estimates for a senior developer using a coding agent, including review and fixes of AI output. Tokens include agent context and cache reads at a blended rate.
I'm a marketer, not a full-time developer. Supastack brings auth, workspaces, billing, BYOK AI, email and themes together in one codebase. The AGENTS.md and prompts help me start building with Claude Code without learning every corner of the repo. Solid base for AI SaaS.
I'm building Lixing, a local-first reflection app. I ran the monorepo on Windows and pulled four patterns into my app: config, secure license storage, entitlements and a paywall. The port passed 26 tests behind a feature flag before touching production. I don't need auth or billing today, but I know where to look when Lixing needs a backend.
I went through the repo in depth and ran the Rust tests. Few boilerplates ship a desktop option, so Supastack feels like a dream come true. The boundaries are written down and the code honors them, the desktop app never forks the web app's UI or auth.
Raven S.
It's truly beginner-friendly.
I'm not a coder, but Supastack's extensive documentation has taught me so much. I'm already building a landing page for my site, cutviee.com, even though I started with zero coding knowledge. It's truly beginner-friendly.
Cut Viee
From idea to the Microsoft Store. In 48 hours.
I built and shipped SpinShare, a Windows app for offline file conversion, with Supastack in 48 hours.
A working lead-gen demo, built in two hours on supastack.
Why start with Supastack when AI can write the code?
AI can build your screens. Supastack gives it sign-in, payments, a database and more already connected, so you can focus on what makes your product useful.
What you want
Starting from scratch
With Supastack
Let people sign in and save their work
Build sign-in and connect it to your database.
Sign-in and your database are already set up.
Start charging customers
Build checkout, subscriptions and paid access.
Payments, subscriptions and paid access are already connected.
Add AI to your product
Build AI chat, save conversations and manage spending.
AI chat, conversation history and spending limits are built in.
Build with your AI coding tool
Explain your project and its rules each time.
Ready-made project instructions help your AI tool work with the code.
Launch on web, mobile or desktop
Set up a different app and release process for each platform.
Web, mobile and desktop apps come with build and release setup.
Connect your service accounts, add your product features and test before launch.
In 2024, I thought I could build something big. I launched a teacher-rating platform, and ended up getting a call from my director. That project is now closed, but I haven’t stopped shipping.
Over the past two years, I’ve tried dozens of projects: an AI image tool, an AI gateway, an AI learning app. Today, I’m still building LearnX, and I have plenty more ideas I want to try.
But every new idea came with the same first week: wiring up login, payments, emails, a database, and deployment. Before I could build the part I was excited about, I was rebuilding the same foundation.
So I built Supastack for myself: a boilerplate I could reuse whenever I wanted to start something new. Set up the foundation once, then spend my time on the idea.
Then I realized I couldn’t be the only one stuck doing this. If it helped me spend more time building, maybe it could help you too. That’s why I’m sharing it.
I’m still shipping. I just want the next idea to start with the idea, directly.
A few questions before you build. Answered.
What do I get with Supastack?
You get the source code for an app with sign-in, payments, a database, AI chat and more already connected. Make it your own and build the features your customers need.
Can I build a website, a mobile app or a desktop app?
Yes. Choose Next.js or TanStack Start for web, Expo for iOS and Android, or Tauri for desktop. Buy the platforms you need, or get all four together in the Full Bundle.
How can my customers sign in?
Sign-in is already built. Customers can receive a code or sign-in link by email, or use accounts such as Google and GitHub. Connect the sign-in services you want to offer.
Can I add AI chat to my product?
Yes. AI chat, saved conversations, usage tracking and spending limits are included. Connect your chosen AI service; you can also let customers use their own AI accounts.
Can I charge my customers?
Yes. Take payments and offer subscriptions, with paid features connected to each customer’s plan. Connect your own payment account, such as Stripe, and choose your prices.
What do I still need to do before launch?
Add your branding and product features, connect your service accounts, and test your app. You get editable source code, so you or a developer will need to work with code. AI coding tools can help.
Do I pay once or every month?
Supastack is a one-time purchase with lifetime updates: Starter is $199 for one standalone platform and 1 GitHub seat; Full Bundle is $299 for the unified four-platform codebase, all four standalone repos, the MV3 extension and up to 3 seats; Agency is $799 with all bundle code and up to 10 seats. Every plan allows unlimited commercial projects, including selling your own products, delivering client projects, and privately handing over the finished product’s source code. Agency adds white-label use and priority asynchronous text support in a private Discord channel. Hosting, AI and other services you connect have their own costs. Your license arrives by email, with code access through a GitHub invite.
Can customers see each other’s data?
Each customer’s work is kept in their own workspace. The included features check which workspace a person can access. Keep those checks in place when you add your own features.
Can my app keep working after someone leaves the page?
Yes. Long-running and scheduled tasks are included, so work can continue without keeping a page open. Connect your task service and add the work your product needs to do.
Can my app send emails?
Yes. Send sign-in messages and product updates such as a completed-task notice through your chosen email service. Cold outreach and marketing campaigns are separate.
Can customers pay inside my mobile app?
Yes. Mobile purchases and restoring previous purchases are included through RevenueCat. Connect your app-store accounts and test on devices before release. Website payments are set up separately.
Are my AI account details kept private?
AI access keys are encrypted and kept on your server. They are hidden from logs, and you can track usage and spending for each workspace.
How can I pay for Supastack?
You can pay by card through Stripe checkout. Alipay and WeChat Pay may also appear when enabled. Some payments take time to confirm; your access page updates after confirmation.
Can I get a refund?
Once you have repository access, your purchase cannot be refunded. Every plan allows unlimited commercial projects, including selling your own products, delivering client projects, and privately handing over the finished product’s source code. You cannot resell or publicly share the starter kit itself. With launch cashback, ship a live product, share it and reach 5,000 organic views or 50 organic likes within 60 days to receive 50% of what you paid back. Submit your claim within 60 days; one claim per license, subject to review under the terms.