Chapterpillar is a cozy reading tracker for kids and families. Log a finished book, and your caterpillar gains a segment — the more you read, the longer Pip gets.
Any book counts — picture books, chapter books, bedtime stories read together.
Scan the barcode or type the title, give it stars, tell Pip how it went.
Every book adds a segment. Hit milestones and Pip somersaults, sprouts wings, and earns a crown.
Each reader grows their own Chapterpillar. Segments are color-coded to the books they came from.
Somersaults at 5 books, butterfly wings at 10, Library Monarch at 20. Always a next adventure.
Profiles for every kid — no emails, no passwords, just a name and an avatar.
Every logged book lives on a cozy shelf — ratings, reading journeys, and all — to look back on for years.
Point the camera at the barcode and Pip fills in the title, author, pages, and cover.
Editing, settings, and the book shop live behind a family PIN. Kids just read and grow.
This is what finishing a book feels like in Chapterpillar.
Yes. Chapterpillar is free for families. If a grown-up buys a book through our recommendation links, Amazon pays us a small commission — that's the whole business model.
Anyone who reads or is read to — picture-book listeners to chapter-book devourers. The worm doesn't care how long the books are.
Yes — one grown-up account, a profile for every reader (grown-ups can have worms too). Kids never need emails or passwords.
No ads, no trackers, no selling data, no kid accounts — and real export & delete buttons. The details are in how we keep Pip's secrets.
Free for families. Set up in two minutes — the first book is the best one.