AC Turnip Stalk Broker is a free Android app developed by RFSP. It falls under the Utilities & Tools category and is specifically designed for fans of Animal Crossing: New Horizons. The app is a simple tool that helps players keep track of their turnip prices and determine the best day to sell their turnips for maximum profit.

The interface of the app is user-friendly and straightforward. Upon opening the app, users are prompted to enter their turnip prices for the morning and afternoon of each day. The app then calculates the trends and patterns of the turnip prices and predicts the best day to sell the turnips. The predictions are based on the patterns from the previous weeks of the user's game. The app also offers a graph to show the trends of the turnip prices throughout the week.

Overall, AC Turnip Stalk Broker is an excellent tool for Animal Crossing players who want to maximize their turnip profits. The app is easy to use and provides accurate predictions based on the user's game data. It is a must-have tool for any serious Animal Crossing player.