Android App Version 3.7 Alpha 3 or later needed!
To get this version you need to join the test channel here:
After installing you should see a new menu entry called “Add Reminder from PC”:
Select it and you see a popup to enable the web feature.
Tap on the button at the bottom (don’t be afraid you won’t get charged):
Tap on the G Pay area with the arrow:
Next select “Redeem Code” and enter your code to get free access for 99 days:
Now you have enabled the web features.
Open the browser on your PC and enter this URL:
Sign in with the same Google Account as on your phone and you should see the input fields to add a new reminder.