Rollups by Leave Me Alone - Combine newsletters into weekly digest emails 💌
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
Pigeon Inbox - The future of reading
TL;DR Email - Send short emails & read emails as fast as you read Facebook
Mailbrew - Automated email digests from Twitter, Reddit, YouTube & more
mlist - Email newsletters, outside of the inbox