Empathize - Manage your credit cards & loan in 1 place
Topicbox - Put team emails into one centralized, searchable place
Inbox Creature - A super cute virtual pet, delivered right to your inbox.
Nova Inbox - Personalize emails in seconds, right from your inbox
Relief - The free app that gets rid of your credit card debt
InboxSDK - First usable API to write Gmail Apps for 1B active users