I sometimes use it in a text message, because it is shorter than "probably," but only with people I know pretty well. It is very nonstandard and really should not be used at all, especially not in writing.

Hello , I'm an Indian native English speaker. i would love to help you improve your fluency and develop your communication skills in English so that you can reach your goal. i am willing to meet your needs and help you in every possible way. Feel free to message me back and check out my profile. Cheers:)