Ninja Notebook app for iPhone and iPad

Search and Filter your notes easily, no more endless searching. Filter techniques and kamae by lineage, or level. Write notes using your iPad, and carry them with you on your phone. All your notes are safe in iCloud, and Synced across all your devices. No more carrying around your irreplaceable hard copy notes. Its all backed up for you, instantly.
If you have an Apple Pencil, you can write notes the same as you scribble on a paper notepad!
Carry your notes with you always, and its like you never leave the dojo. You can hold that dojo mind set with you everywhere.