競馬メモ is a simple horse racing notepad app designed for easy operation. By inputting purchase amounts and payout amounts, it automatically calculates and displays your return rate and hit rate. Users can register various information such as purchase amount, payout amount, race details, bet type, racecourse, self-evaluation, notes, and images. The app also provides automatic calculations for return rate and hit rate based on the input of purchase amounts and payout amounts.

Users have the option to choose from two types of list views, and the app supports monthly and yearly aggregation as well as bet type-specific aggregation. Additionally, detailed search functionality is available for thorough analysis.