Software is NOT a service. Almost any service that you're not paying for is using you to make money somehow. Almost always, this is through advertisements, that use a large amount of trackers to better target them to you. Having these trackers is a serious threat to your privacy. Also, since most software services are anything but free software, you have no real idea as to what they're doing with the data you give them, or what data they're taking on their own.

The biggest offenders in this regard are Google, Amazon, and Facebook. If you're using their services, you shouldn't be.

switching.social offers a simple guide on replacing Google and other offenders.

The general exception to this is free software, especially federated or decentralized free software. See: /f/freeAsInFreedom

Alternatives to Services

DuckDuckGo - Alternative to Google, Bing, Yahoo, etc: [s]

GNU/Linux (depends on the distro) - Alternative to Windows, OSX [s]

Mastodon - Alternative to Twitter [s]

Mozilla Firefox and GNU Icecat - Alternatives to Chrome, IE, Brave [s]

Firefox plugins to block trackers and ads: NoScript and uBlock Origin

NextCloud - Alternative to Dropbox, storage services [s]

Passman - Alternative for lastpass [s]

Raddle - Alternative for Reddit [s]

Diaspora - Alternative for Facebook

ProtonMail - Alternative for Gmail

write.as - Alternative for Medium

Pixelfed - Alternative to Instagram

See Internet Browsing.