Prices should show both including and excluding UK VAT.
If only one price shows, it should be assumed this is exclusive of VAT.
VAT in the United Kingdom at present is set at 20% and final pricing including taxes, and discounts will be shown at checkout.
Customers within the EU will pay prices inclusive of UK VAT. For Those living outwith the EU, price will be charged excluding VAT.
On the Google Play App, prices shown if only showing one price - this is the cost exclusive of tax, and 20% VAT will be shown and added at checkout