Great app. Just a couple of suggestions/questions.

1. Any chance of adding the Nigerian currency (Naira)? There are quite a few African countries on there but seems strange to be missing the currency for by far the most populous African country. I know you can add custom currencies and I have added it myself but each time I go back it has disappeared (maybe it only happens after a switch off or hard reset but still frustrating to have to keep readding).

2. On the former version when you add currency you could use any other currency to set the rate. However, on the latest version it has to be either Euro or dollars. Not ideal for me as I need to use Pound to determine Naira rate and this was what I did previously. Of course I can use the Pound to Euro rate to work out the Euro to Naira rate but seems alot of calculation to go into for each new currency and especially since the new currencies seem to disappear from the application.