Build a SaaS with AI: accounts, plans and payments included.
A software product needs more than its main feature: sign-up, plans, a way to pay and cancel, and checks that only paying customers reach paid features. Crisp builds those parts with your idea, so you can show it to real customers early.
No credit card required.
One prompt: a subscription tool for tutors.
A tool for private tutors to track students, lessons and payments. Free for up to 3 students; Pro for 9 dollars a month with unlimited students and monthly reports. Tutors sign up, pick a plan, and manage billing themselves. Each tutor only sees their own students.Build this example
What Crisp builds from it
- Sign-up and sign-in, with each tutor's data kept separate
- Students, lessons and payments, with pages to add and edit them
- A plans page and a monthly subscription through Stripe
- A billing page run by Stripe to change plan, update a card or cancel
- A limit of 3 students on the free plan, checked on the server
Then it opens the app in a real browser, tests it, and fixes what fails before it says it is done. How a build works.
The boring parts, done and tested.
Subscriptions fail in quiet ways: a customer who cancelled keeps access, or a payment arrives and nothing changes. Crisp marks a subscription as paid only when Stripe confirms the payment, and the security check stops a publish when a payment can be faked.
How it works.
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Step 1
Describe it
Write what you want in plain words: who uses it, what they do, and what matters most.
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Step 2
Watch it being built
A first look appears within about half a minute. Then the data, the forms and the other pages, each one tested.
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Step 3
Publish it
Give it its own address when you are happy with it. Keep improving it; people see changes when you publish again.
What you get.
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Subscriptions with Stripe
Plans, a Stripe billing page, discount codes and tax worked out by Stripe if you ask.
Read the docs: Take payments in your app -
Accounts and private data
Each customer sees only their own records.
Read the docs: Add sign-in for your users -
Emails to customers
Welcome emails, receipts and reminders through Resend.
Read the docs: Send email from your app -
Your own domain
Connect your domain on Pro (1) or Max (up to 10), with https set up for you.
Read the docs: Use your own domain -
Ship changes safely
Customers see a change only when you publish again, and Roll back brings the previous version back.
Read the docs: Publish your app -
Code you own
Keep the code in your GitHub repository and hire a developer later if you want.
Read the docs: GitHub: import, export and sync
Good to know before you start.
- Crisp does not run your company: terms, privacy policy, taxes and support are yours to decide. Stripe can work out sales tax if you ask for it.
- The security check finds common problems, not every possible one. Before customers pay, try the whole flow with the test card, and get a security review if you hold sensitive data.
- Crisp does not own the payment service. You need a Stripe account in a country Stripe supports, or ask for Razorpay or Polar.
Questions.
Can I charge a monthly subscription?
Yes. Ask for plans and Crisp builds the plans page, the Stripe checkout and a billing page where customers change plan or cancel.
Can I test payments before I go live?
Yes. Your preview always takes test payments with Stripe's test card. Real payments start only when you add your live key and publish.
Will it handle many customers?
A published Crisp app runs on its own and keeps running when you are not building. Start small, watch how it is used, and grow it by asking.
Do I own the product?
Yes. You own the code, the data and the app, and you can export the code to GitHub at any time.
Related pages
- AI app builder: how Crisp works, start to finish
- Startups: Sign-up, data and payments in a working first version you own.
- AI dashboard builder: Forms, tables, charts and roles on one shared app, from a description.
- AI CRM builder: Contacts, a pipeline, tasks and roles, built from your own process.
- AI mobile app builder: A native phone app with its own backend. Try it on your phone, then send it to the stores.
- Marketplace: apps people made with Crisp
- Compare AI app builders: Crisp next to Lovable, Bolt, Replit and others, with sources
Describe it. Crisp builds it.
Free plan with $3 of AI usage a month, no credit card. Pro is $20 a month. See pricing.