Outliner: Scroll

Scroll is a multi-functional modern outliner for your Notes, Lists, To-dos & more. Scroll allows you to add an incredible amount of detail to your notes which results in a precise record of your thoughts and ideas. It's dynamic design means you can keep all your notes in one place instead of using several apps. 

Quick search feature allows you to goto the exact note your looking for and start adding details to it instantly. Mark as complete or cross-off notes to helps you keep record of your progress.