Proton save up 60% (new users) https://protonvpn.com/blackfriday

If you already have Proton, go to your account and click the “special offer” tab.

Simplelogin Yearly plan is 33% off on the first year($20 instead of $30) with the discount code BF2023

Please note, if you have Proton ultimate this is included.

Skiff Get off 15% off all annual plans https://app.skiff.com/mail?settingTab=plans

Mountain Duck If you using cryptomator, you might check out this software. $7.50 instead of $39 is a steal. https://bundlehunt.com/bundle/2023-blackfriday-macos-bundle