Expenses: Simple Tracker is a free finance app developed by Nominalista for Android users. It is an open-source app designed to help users track their expenses with a minimalistic interface. The app is free to use and is supported by donors, with no distracting ads.

The app provides only essential features, making it quick and easy to track your budget, even offline. Expenses gives you the power to manage your spendings by tags, allowing you to customize the app to your needs. You can filter your expenses by today, this week, this month, or all time, and choose from over 100 available currencies. Additionally, you can export your expenses to Excel (.xls) for easy management.

Overall, Expenses: Simple Tracker is a great option for those looking for a simple and powerful finance app. With its easy-to-use interface and customizable features, it's perfect for anyone looking to keep track of their expenses and manage their budget effectively.