Why another screenshot app?
macOS already ships decent screenshot shortcuts. What it doesn't ship is everything that happens after the capture: pointing at things, hiding what's private, and making the image presentable enough for a changelog, a tweet or a client.
The apps that solve this tend to be subscriptions, or Electron bundles that weigh hundreds of megabytes for what is, at heart, a menu-bar utility. Capturo is the opposite bet: a small native tool that does the capture-annotate-beautify loop extremely well and stays out of the way.
Capturo costs $29 once, for life. If it is not for you, you have 30 days to ask for the money back. If you find a bug or miss a feature, tell us.