スピード割り勘 is a finance app developed by nekobukiya for Android devices. It is designed to simplify the complex and tedious task of splitting bills. Whether you're organizing a year-end party, a night out with friends, or a company gathering, this app is here to help you calculate everyone's contributions.

With スピード割り勘, you can divide your group into up to four categories, such as "men," "women," "boss," "subordinates," "non-drinkers," or "latecomers," each with their own contribution amounts. The app operates in just three simple steps: input the total bill amount, adjust the number of participants, and fine-tune the individual contributions using the "+" and "-" buttons. It automatically calculates the total contributions to ensure they match the bill amount.

The app also allows you to perform basic arithmetic operations, making it easy to add or subtract amounts from multiple receipts, deduct the leftover amount from the first event to the second, or factor in discounts. This eliminates the need for manual calculations using a separate calculator.

In addition to its functionality, スピード割り勘 offers customizable group icons and retains previous calculations for future reference. You can also share the calculation results with other members through LINE, email, and other platforms.

[Source: Various online sources]