Choice is a retirement app that allows users to invest in bitcoin and other assets without paying capital gains taxes. Through a Choice Account, individuals can save for retirement in a tax-efficient manner, with the option to choose between different types of IRAs and asset storage methods. The app also offers features such as free daily bitcoin rewards and the ability to invest in a variety of assets, including crypto, stocks, ETFs, and gold, all within a single retirement account. Choice emphasizes security and provides institutional-level custodial services.