FAQ - Premium version
I do not like ads and their user tracking in apps, so I do not use them in my app. As alternative power users need to pay a small amount to use the app with unlimited entries and all premium features. If you just want to keep track of a few debts you should be able to use the app completely free.
You can choose between a subscription (monthly or yearly) and a one time payment. The features you get are the same it is just a difference in the payment method.