Can you recommend an email app for iphone with email tracking, reminders, and templates all in one?

I am using Polymail but I can only add templates on a MAC, which I don't have. Any app similar to this but affordable?
Your recommendation
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2 recommended
  1. 5
    Polymail iOS

    Simple, beautiful, powerful email for iOS

    John AlexanderGrowth @ shoflo · Written
    Pretty sure they just launched paid plans with templates, reminders, & tracking
    Comments (1)Share
  2. 1
    Newton by CloudMagic

    Supercharged emailing with space-age features

    Justin Mitchell9Founder & CEO @ Yac · Written
    No templates but hands down the best tracking and reminders I've ever seen in a mail app.
    Comments (1)Share