Math4Fun gets child profiles and progress tracking

Hey IndieHackers! 👋

Quick update on Math4Fun - my app that generates personalized math worksheets for kids based on their interests.

What's new:

🔐 Google Sign-In
Parents can now jump straight in with Google OAuth instead of filling out registration forms.

👶 Child Profiles
Create multiple profiles for different kids with saved grade levels and interests. No more re-entering info every time!

📊 Progress Tracking
Full dashboard showing correct/incorrect answers, difficulty progression, and adaptive difficulty based on performance.

Next up: figuring out monetization
Try it here: math4fun.io - would love any feedback! 🙏