Before @Updatest, I was using TrashMe 3 (terrible name!), Latest, the Homebrew Raycast extension (which I contributed to!), and in-app Sparkle updates and the App Store to keep my apps up to date.
But Updatest handles all of those sources and helps me migrate random apps I've installed to be managed by Homebrew, which is much more reliable and convenient.
@hugeirl has been cranking on Updatest to get to this launch, and the quality of his work shows.
If you use Mac apps and want to keep them up-to-date, you owe it to yourself to give Updatest a try.
I bought a license within minutes of downloading the app — and it's improved by leaps and bounds since then!