Right Inbox - Schedule Emails in Gmail To Be Sent Later
TouchPortal - Touch Portal is a companion app to control a PC or a Mac by using a deck of buttons to improve the workflow & productivity of game streamers, content creators and professionals.
Recurrr - Send recurring emails
Macro Deck - Use smartphone as macropad for pc
FollowUpThen - The simplest way to schedule an email reminder
Deckboard - Deckboard helps you create macros for Windows PC and launch them on your phone.