If you have upgraded the app to show valuation data, remember that the subscription expires after one year! After that one year period the valuations disappear and in their place you’ll see the prompt to upgrade.
Your upgrade status is connected to your Google Play account. If you re-set or change your device, re-install the app and it will automatically display the valuation data (assuming the upgrade was purchased and has not expired). Note that your user data, i.e. the quantities of coins marked as ‘Got’ and any saved notes are stored on the device you saved them on, and this information is not currently transferrable.
In order to work out your upgrade expiry date, check the date that you upgraded like this…
In Google Play, press the three lines. Go to ‘Account’, then ‘Order History’. On the Order History screen you’ll see the date that the upgrade was purchased.
The Check Your Change admin is Mr C H Perkins, publisher of numismatic publications in printed and eBook format. Author of "Collectors' Coins - Decimal Issues of the UK" and other books on British coins and related subjects.