The planner your BOOX deserved all along.

BooxDay is a daily planner for Onyx BOOX e-ink tablets: a calendar, handwritten memos and handwritten task lists on one screen, made for the stylus and the e-ink display.

It is free and open source under the GNU General Public License v3.0. No subscriptions, no ads, no upsells. Why is it free?

Download the app View the source on GitHub

The Memos page with handwritten notes next to the month calendar — Memos

The Tasks page with a handwritten task list and checkboxes — Tasks

A task card showing priority, due date and notes — Task card

Features

Month calendar with the selected day's events and due tasks
Handwritten memo pages for each day, with text boxes, images and linked files
Handwritten task pages: checkboxes, priorities, due dates, reminders, repeating tasks and subtasks
Google Calendar and Outlook Calendar sync, or a calendar kept only on the tablet
BOOX Notes integration: see your notes on the days they were written and link them to events
Search across memos, tasks and notes
Optional AI features (voice to event, handwriting to text, summaries, translation) using your own OpenRouter account
Designed for e-ink: no animations, high contrast, large touch targets

How BooxDay uses your Google account

Connecting a Google account is optional. If you do, BooxDay asks for two permissions:

Google Calendar, to show your events in the planner and keep changes you make on the tablet in sync with your calendar.
Google Drive (only files BooxDay creates), to save backups of your planner to your own Drive and restore them. BooxDay cannot see any other files in your Drive.

Your data stays on your tablet and in your own Google account. BooxDay has no server and sends nothing to its developer. Read the full privacy policy.

Install

BooxDay is installed from an APK file on its GitHub releases page. You need an Onyx BOOX tablet running Android 10 or later. Step-by-step instructions are in the install guide. Once installed, the app updates itself when a new version is released.

Tested devices

BooxDay has been tested on the Note Air3 C, Note Air5 C, Go 10.3, Go 10.3 Gen II, Go 7 Gen II and Go 6 Gen II. The developer doesn't have every BOOX model, so other models haven't been tested yet.

Have a different BOOX? Testers are welcome. Try BooxDay and share how it works on your device on the GitHub issues page.

Support and contributions

BooxDay is shared as is, without technical or product support. Bug reports and code contributions are welcome on the GitHub issues page, but there is no promise of a reply or a fix.