EmailTracker.cc - Free Email Tracker for Gmail. Close More Deals with Comprehensive Email Tracking, Automated Follow-up Reminders, and Detailed Click Insights

Relief - The free app that gets rid of your credit card debt

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

Lannister - Encrypted personal wealth manager and financial planner 👑

MailTime - Go through your email as fast and easy as text-messaging

Inbox Creature - A super cute virtual pet, delivered right to your inbox.