Yes, both CloudApp and ScreenshotsCloud offer a Free Trial.
CloudApp is designed for Individuals, Large Enterprises, Medium Business and Small Business.
ScreenshotsCloud is designed for Large Enterprises, Medium Business and Small Business.
Pricing for CloudApp Starts at $8/User/Month whereas for ScreenshotsCloud Starts at $29/Month.
Some top alternatives to CloudApp includes Scribe, FireShot, Snapup, RecordScreen.io, Snagit, Droplr, Jumpshare, Screenrec and Snippyly.
Some top alternatives to ScreenshotsCloud includes CloudApp, Capture, Screenshot Machine, Screenshotlayer, ScreenshotAPI, Snapup, Screendot, Awesome Screenshot, Snippet Shot and ScreenshotOne.