Have you checked whether or not the iOS version on your iPad is compatible with the new release of TMMS? Could be that it's only available for iOS 10.
I found something similar with an iOS app update - I forget which one.
Annoying? Sure it is. It's becoming more and more common that development is applied only on the very latest platforms.
Are they trying to get you to spend more and more money keeping up to date with the latest technology? Sure they are. It's your choice.
Annoyed when I can't protect all my devices
Our sincere apologies for the inconvenience this has caused.
The online KB with related information on this issue has also been updated. Please refer to this KB for detailed information and let us know if you have concerns.
Frequently Asked Questions (FAQ) about Mobile Security for iOS version 3.2 and 5.0
Trend Micro Home Users Community