Squiggle Brains
Live, launched 2026.
Our own shop for printable mystery activity PDFs for children aged 7–10. This is a real project, not a client logo wall.
The problem
The shop needed to sell digital PDFs in India and elsewhere, deliver files safely, and keep payments and admin locked down.
What it is
Squiggle Brains is an online shop for printable mystery activity PDFs for children aged 7–10. It is our own product, at squigglebrains.com. It is not a client we are allowed to invent numbers for.
What was built
A mobile-first catalogue, market-based pricing (rupees in India, dollars elsewhere), Cashfree and PayPal checkout, and automatic order emails that deliver the PDF through a secure link.
The admin side uses two-factor authentication. The public site does not hold secret keys. Database rules deny access unless a rule explicitly allows it.
How it was built
The build was AI-assisted, with a person reviewing and testing before anything shipped. It is hosted on Firebase.
We are not publishing sales, revenue, traffic or conversion numbers here. If those are added later, they will be figures we measured, not estimates.
Features
- Mobile-first product site
- Prices in rupees for India and dollars elsewhere
- Cashfree for rupee checkout and PayPal for dollar checkout
- Order emails with secure PDF delivery
- An admin panel with two-factor authentication
- Structured data and an llms.txt file for search and AI search
- Deny-by-default database rules, App Check and security headers
Tech used
Firebase hosting, Cloud Functions, Firestore, Resend, Cashfree and PayPal. AI-assisted development with human review and testing.