ShopBot

What it does

Compares products, finds the discount codes, and checks out through Link or Shop Pay on the card that maximises your perks rather than whichever one is saved by default. It runs when you ask it to, rather than on a timer.

Before you install

Open the share link and read the instructions it carries before you add it. @shubgaur shared this one publicly, and adding it copies the setup into your own account rather than giving you access to theirs.