Planniversary - Never forget a gift or a birthday / anniversary again ๐๐
My Daily Planner - Organize your day with pen & paper. Free printable template.
hbd - birthday reminders for the people you actually care about.
Amazing Marvin - Customizable personal productivity tool
Slack Birthday Bot - Slack bot for celebrating birthdays
FocusList - Daily planner & focus timer based on timeboxing and pomodoro