Bitwarden is one I use several times a day. They do have a support plan for like $10 a year that gives a couple extra features like TOTP support, but the base level is incredibly robust. It’s open source, too. I know a lot of folks also host their own servers with Vaultwarden, but that’s a little beyond my skill level.
7-zip
LibreOffice for word processing and spreadsheets.
Bitwarden and firefox
I don’t use it but blender is another one
Genuinely free? VSCode
Freemium: Discord
You pay with your data: Google Maps
If there’s one service that I’m okay giving my data over for, it’s Google maps.
Without that, we wouldn’t have traffic data or how busy a business is. Crowd sourcing information is the only way to get a service as good as google maps. It’s actually amazing to me that it’s free given all of the satellite and street imaging done.
Firefox, ppsspp, termux, VLC, Tachiyomi(SY), and KeypassXC/DX are coming to my mind. Probably there are a lot more. These are for android. Although they do apply to desktop except termux and Tachiyomi.
Edit: I haven’t added the various FOSS tools as they don’t really come in “App” Category. Some of them:
- Linux kernel
- git
- gcc
+1 for Firefox and VLC. Always amazes me that such good programs are available for free. Remember to donate to FOSS projects, people!