Pigeon for Gmail VS Flow-e

• Track your leads, prospects, sales, etc inside Gmail!
• Sort, search, group, and filter all your data.
• Get advanced CRM and spreadsheet functionality - track names, documents, status, dates, all right inside Gmail!
• Lightning fast canned responses and email templates (with keyboard shortcuts)
• Send automated follow up sequences
• Follow up sequences can be sent for cold emails AND existing threads.
• Mail merge and send cold email
• Batch emails in mail merge to send throughout the day
• Personalize your follow ups or outbound email with customizable variables like {{ first_name }}
• Track who opens your emails.
• One click Google docs generation
• Email reminders
• Saved views
• Google Docs to Markdown export

Flow-e is a visualization layer on top of your Gmail or Outlook inbox. It provides an elegant Kanban-like workflow that's combined with the ideas behind Inbox Zero and GTD. Flow-e eliminates the need of external task management tools and transforms your inbox into a central To Do app.