Kalendapp is a free Android application developed by SmartCode that helps you store and manage your deadlines efficiently. With this app, you can easily create handwritten notes, sketches, and reminders, and link them to specific dates. The app syncs and stores the latest updates of your notes, ensuring that you have access to the most recent information at all times.

You can use Kalendapp as a standalone app, but to store your paper-based notes and reminders on your mobile device, you'll need the Kalendapp deadline planner. You can purchase the planner from Kalendart resellers or order it from the official website.

Kalendapp's easy-to-use interface lets you create electronic notes, add color coding, and group them for easy access. With this app, you can have your deadline planner with you wherever you go. Just scan the latest page of your planner, adjust the markers on the screen, and save your notes to the app. Remember to refresh the app to ensure that your planner is up-to-date.