Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
Pushbullet - Pushbullet - Your devices working better together
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
AirMore - AirMore is a cross-platform toolset that can help you manage any Android device wirelessly.
Standard Notes - A safe place for your notes, thoughts, and life's work
MyPhoneExplorer - WHAT IS MY PHONE EXPLORER? Imagine if your PC could be used to keep track of your mobile phone? How would you utilize a PC client that connects to your phone? Read more about MyPhoneExplorer.