Collabshot

It's simple and to the point, but misses many features and development got stale:

• you can't delete a screenshot from your history;
• didn't see a "recover password" feature;
• there are a couple of bugs on the desktop app (Linux at least), as well as on the website;
• needed a small hack even to install the deb on a recent Ubuntu-like distro;
• UserEcho page seems stale as well;
• doesn't save the screenshot on your computer by default, and you can't verify it without accessing the website. To view it locally you must use a different shortcut... As if those were two completely different features...

Too dark, bulky, confusing, and takes more time than it creates.

I'm not using this app.

Good intentions but options like Good Annotations are way easier, faster, and more practical to use.

The fastest and smartest solution that I found. And ability to collaborate on images creates great communication experience. Already love it!