Apple has again updated its list of Apple Pay partners by adding another 24 credit unions and banks, with a strong emphasis on credit unions in the latest additions. Personal and branded cards from the financial institutions can be added to Apple Pay in most cases, though small-business and sub-branded speciality cards may not always be compatible. Since its launch last fall, Apple Pay has nearly instantly become the most popular of the various mobile-payment services, despite only being available on the iPhone 6 (and now, Apple Watch).