Topicbox - Put team emails into one centralized, searchable place
GitNews App - Trending repositories from GitHub, HackerNews & Reddit
Nova Inbox - Personalize emails in seconds, right from your inbox
Sip by Product Hunt - Daily tappable tech news and stories.
InboxSDK - First usable API to write Gmail Apps for 1B active users
GitHub Repository Size - Browser extension to show file and repo size in GitHub