Instagram Analytics by Socialinsider - Get better at Instagram marketing by studying competition
Knotable - Cut the noise out of busy email threads
Emphatic by Connect365 - Custom social media marketing on automation
Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.
Buffer for Instagram - Plan, track, and analyze your Instagram marketing
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.