Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

Planny.co - Planny is lightweight Twitter scheduler. Grow faster with calendar planner, multi account management, advanced drafts and analytics.

GoodByEmail - Declutter your inbox without giving third-party access to your emails! Reclaim GBs of storage, unsubscribe from pesky emails—all while keeping your emails off our servers. Experience full privacy with GoodByEmail, even offline!

Gone - An ephemeral to-do list

The Email Game - Get to inbox zero with game mechanics

Day Night - A desktop app that kills the procrastination in you.