This app provides a second completely independent layer of proven military/intelligence/security grade encryption for messages sent on the Instagram app. If a spy or a hacker is successful in gaining access to the user's account, the spy/hacker will not to be to read the message because it is completely encrypted by independent key.
King Tut is the developer of the app which can be found in the Communication category. UltraInstaMessages has been downloaded and set up by over 100 users and its most recent update is dated Jul 15, 2018. On Google Play, this application was rated 3.9 by its users.
It's free of charge to download the installation package of UltraInstaMessages, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 3.0 and higher. This download is completely safe.