Spell Catcher is described as 'powerful, all-in-one spell checking and writing software solution—a program that’s so much more than a spelling checker, its name only hints at its capabilities. With Spell Catcher, you’ll write better and faster—in virtually any application' and is an app in the News & Books category. There are five alternatives to Spell Catcher for a variety of platforms, including Mac, Online / Web-based, Android, iPhone and iPad. The best alternative is Typinator. It's not free, so if you're looking for a free alternative, you could try SSuite Spell Checker or Proofread Bot. Other great apps like Spell Catcher are Grammarian PRO3 (Paid) and TypeIt4Me (Paid).
Proofread Bot checks your writing for grammar, style, spelling, statistic and plagiarism issues and gives recommendations to improve your writing. The tool gives you a visual text editing interface and an auto generated textual report for your convenience.