Hi Paul,
The short answer is no, but there are a couple of resources which you might find helpful. The news page on the AngelNav website contains a full list of every app update, including details of the changes. It also includes a list of which charts have been updated for every three monthly UKHO update since the launch of AngelNav last year.
In addition the information button at the top of the screen when you have a chart displayed will display the update date of the chart
Bill