Neither Screendot nor og:screen offers a free trial.
Screendot is designed for Medium Business and Small Business.
og:screen is designed for Large Enterprises, Small Business and Medium Business.
Pricing for Screendot Starts at $20/Month whereas for og:screen Starts at $39.00per month when Billed Yearly.
Some top alternatives to Screendot includes Capture, ScreenshotsCloud, GetScreenshot, Screenshot Machine, Screenshotlayer, ScreenshotAPI, Snapup, Awesome Screenshot, Snippet Shot and ScreenshotOne.
Some top alternatives to og:screen includes and undefined.
