I can no longer log in to the Tapingo RX app. Gerardo July 21, 2017 22:20 Follow Make sure you are using the same e-mail and password that you were using before. If that does not work, please e-mail email@example.com. Related articles It says “Untrusted Developer” when I try to open the Tapingo RX app on my iPhone. I downloaded the Tapingo RX app but can’t log in. I need the link to download the Tapingo RX app again. Where can I find it? Comments 0 comments Please sign in to leave a comment.