GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
Upscribe - Embeddable lead generation forms for Medium
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Marvel Embeds - Embed interactive prototypes on any site (including Medium!)
Quokka (formerly Kryptowire) - The gold standard in SAST, MAST, IAST, and more!
Refined Medium - Chrome & Firefox extension that removes clutter on Medium