ZZZ MDEditor

ZZZ MDEditor is a local-first, all-in-one app that brings your notes, tasks, AI prompts, and custom databases together around Markdown. Everything is stored on your device and works offline — no account required.

Markdown notes
- Editor with live preview
- [[wikilinks]] and automatic backlinks
- Graph view to see how your notes connect

Tasks & schedule
- Checkboxes, priorities, due dates, custom statuses
- Task board (kanban) and agenda views
- Calendar with holidays (Japan, Asia, Europe and more)

AI prompt management
- Organize and reuse your favorite prompts in Markdown

Custom folders (use them like a database)
- Define your own fields: text, number, date, choices, checkbox, phone, photo, location, and more
- Sub-tables with subtotals, and computed fields
- Search, sort, and compact list views; export and share a folder as JSON

More
- English and Japanese (follows your device language)
- Fully local, offline-first

Build your own databases for budgets, inventory, reading logs, subscription tracking, and more.

Pricing & ads
- Free to use, supported by in-app ads.
- On the free plan, some actions (importing external data, exporting/sharing as JSON, sharing templates) run after you watch a rewarded ad.
- Pro (¥180/month, auto-renewing) removes ads and lifts the limits on files, records, and folders.
- Payment is charged to your Google account at confirmation of purchase and renews automatically unless canceled. Manage or cancel anytime in Google Play > Payments & subscriptions.