Some mobile app does that on purpose because people tend to make typo when the password is masked. I think it is not a very bad practice considering you entered

Some mobile app does that on purpose because people tend to make typo when the password is masked. I think it is not a very bad practice considering you entered it a few times already. People who want your password can look at your fingers to guess it anyway. It's worth noting that I'm not related in anyway to Instagram. I also haven't downloaded the app, yet. I was speaking in common sense.