It is a basic error! When you get in your "Your Application" area, in the Power Bi service, the date that is showing is the CREATED date of the APP. Even if you have republished/updated your APP....
v-haibl-msft
Microsoft Employee
9 years ago
In latest Power BI App in iOS, the label displayed before date is "Last published" as below. So this date should be the published date instead of update date. I suggest to create an idea in https://ideas.powerbi.com for it.
Best Regards,
Herbert