Wasted Potential

UPDATED REVIEW: I have to edit my review and add a star. Ive found out, by accident, that to go into the boards and pieces options you have to turn the iPad into landscape position. Indeed the collection of high resolution authentic chessmen and boards from history is amazing.
There are still serious issues that seem to be easy to fix but which are ignored.
Someone sent me an invite to play correspondence chess. There is a small mini board inside the message overlay of the app, but the board doesnt respond to any interactions. It is very strange how that feature isnt working.

Another issue is how there is no visible option how to purchase the membership. It says my trial period expired. What trial period? And for what features? How can such a beautiful app not have easy no navigate menus and explanations. Come on guys!

Drawgood about Instant Chess, v5.8.1