Koo App: The Indian alternative to Twitter Is Not Safe? Koo app is rising to fame as Twitter and the Indian government got off on a wrong foot on various issues. But as the Made-in-India app grew in popularity, it also drew a lot of criticism - mostly based on misinformation that is being passed along the internet. There was a serious allegation against Koo app for leaking personal data of its users. This surely didn't sit well with 3 million people who joined the platform so far and many more who were on the fence about jumping the ship. But as it turns out, Koo is safe and has no red flags, at least ones we know of yet.