Your Pencil's new AI Assistant

It's Penbook's perfect partner.

We've been asked to add AI features to Penbook, but we didn't want to mess with the workflow you love. Instead, we acquired Petey, an AI app made by a fellow indie developer and friend of ours.

We set to work making Petey the perfect AI app for Pencil users, and we remade Petey’s iPad experience with Pencil-centric AI features that Penbook users will love.

Say hello to Petey 3.0

Share your Penbook notes directly to Petey from the Share sheet, and start asking questions about it:

• Take a photo of a whiteboard, annotate it with your Pencil, and ask Petey about it

• Send notes from Penbook to Petey to understand concepts better

• Scan figures from textbooks, and highlight parts you don't understand - Petey will explain them to you

• Or just open Petey and draw, with a selection of page stationery to help you get your point across.

We've found Petey with Pencil support to be an amazing tutor, research assistant, and teacher. It's also great for general AI queries when you're away from your iPad - Petey’s iPhone experience is top-notch and its Apple Watch app is legendary.

Petey 3 is built for you and your Pencil, and we really want you to try it. Penbook users get a 50% discount on their first year with the coupon code PENCILAI (or just tap that link). It works out to US$30 for the year, with full access to Petey AI on all platforms, backed by the best-in-class OpenAI ChatGPT. This coupon is valid only for a few days.

Give Petey a try today,