BrainBox Support
A timeline-based task management app for your day
About the App
BrainBox is a timeline-based task management app designed for people with ADHD tendencies or who struggle to keep up with to-do lists. By visualizing today's tasks along a time axis, it helps prevent procrastination.
Timeline view
See your day's tasks laid out along a time axis
Free time visualization
Clearly see the gaps between your plans
Later list
Manage tasks without a set time in one place
Shopping list
Keep track of what you need to buy
Recurring tasks
Set up daily, weekly, and other repeating tasks
Subtasks, notes & photos
Track task details in depth
Tags & file tabs
Organize tasks by category
Deadline managementPRO
Set due dates and reminder timing
Location alertsPRO
Get notified when you're near a place
Don't-forget alertsPRO
Check your belongings when you leave a place
Life patternsPRO
Switch wake/sleep times for shifts or days off
Home screen widget
Check what's next and your shopping list at a glance
Multiple languages
Japanese, English, Korean, and Traditional Chinese
FAQ
Q. Where is my data stored?
A. All data is stored in local storage on your device. Nothing is sent to external servers.
Q. What happens to my data if I delete the app?
A. All data is deleted when you uninstall the app. There is currently no cloud backup feature.
Q. I accidentally deleted a task. Can I restore it?
A. Sorry, there is currently no way to restore a deleted task. Please double-check before deleting important tasks.
Q. Can I delete just one occurrence of a recurring task?
A. Yes. When deleting a recurring task, you can choose "Delete this occurrence only" or "Delete all occurrences."
Q. Where do I subscribe to or cancel the PRO plan?
A. You can subscribe from PRO in the app's Settings. You can cancel any time from your Apple ID account settings (Subscriptions) in your device's Settings app.
Q. Where can I see tasks moved to "Later"?
A. Tap the "Later" button on the bottom bar to see the Later list.
How to Contact Us
If you have any questions or requests, please feel free to reach out using one of the methods below. We usually reply within 1–3 days.
Contact us on LINE Contact us by emailReporting a Bug
If you find a bug in the app, please include the following information when reaching out to us.
- Your device model and OS version
- The app version (available in Settings)
- What happened and how to reproduce it
- A screenshot, if possible
Privacy Policy & Terms of Service
For information on how we handle personal data, see our Privacy Policy. For the terms of the PRO plan, see our Terms of Service.