I have tried uninstalled dbs and reinstalled posb digibank the heating issue still persists. But will monitor if it will help to resolve the other issues ie app update/download not responsive, mail not responsive and outgoing call failures.

May you share what did you do?Just to feedback, finally able to use posb on my iPhone 12 Pro Max without the heat problem! Finally!
I never do anything, I just download the latest version from app store and pray, seems to have solved.May you share what did you do?
Mine is direct from Apple set. Don't think this is a problem la .... Since Telco or non Telco, the set also direct from Apple oneI never had any issue with DBS/{OSB app. Just wondering, are those affected using telco sets or direct from apple?
I can confirm posb no more heating up issue as severe as last time. I can finally use the banking app on my iPhone 12 Pro MaxIs it me or the bank apps haven sort it out yet
updated to latest iOS 14.5?UOB app still heats up and causes freezing on my 12 pro max. I don't like using the web version on my 12 pro max as their web app is not well optimised and the words/numbers are too small. I uninstalled it and currently use the UOB app on my Oneplus 8 pro. Android version don't seem to have this issue.
Updated to latest IOS 14.5 & latest app version from app store. Still the same issue.updated to latest iOS 14.5?