I would use a spreadsheet for that. It will add the numbers for you. I use LibreOffice on the computer, but OnlyOffice and Collabora Office are good mobile apps. They are all open source and store data locally on the device, so they are good from a privacy perspective as well.
Basic email is free, but you need iCloud+ to get support for custom domains and more than 5GB of storage.
Yes, that’s still true. If you want to be able to use a third-party mail app, I would look at Fastmail or Mailbox.org. They don’t have free plans though.
Proton Mail and Tutanota are great free options.
if I thought some government or company was going to use stuff I develop to launch the nukes or control a robot fist to punch cute little puppies right in the snout then I’d start using a more restrictive license
A more restrictive license wouldn’t help in that case. They would just have to publish any changes they made to your code. The primary benefit of restrictive licenses like the GPL is to prevent someone from using your code in a proprietary project without contributing anything back.
Leslie Valerie Sally