LoanShark is a free Android app developed by Timo Hildén that helps users keep track of their loans. Whether you lent or borrowed money or items, you can create an entry for each loan in the app. It provides a comprehensive overview of your loans and reminds you of their due dates. You can also keep track of payment history, set reminders (alarms), and add more debt to an outstanding loan.

LoanShark also comes with a helpful tutorial for first-time users, which gets them started in no time. You can open contact information by tapping the user's photo and define loan collateral. The app also comes with a backup feature that you can enable in system settings.

What's more, LoanShark is completely free and has no ads. You can report bugs or suggest new features to the developer, making it an excellent choice for anyone looking to keep track of their loans.