TAP is a convenient and efficient way to travel on transit systems in greater Los Angeles. Accepted on 26 transit systems, including LA Metro, TAP provides a vast network of buses and trains. With contactless payment and card management, TAP makes travel safe and easy. Users can use their Android phone to tap and pay when boarding, without even waking up their phone. TAP offers flexible payment options, including credit/debit cards, account cash, and Google Pay. It also supports reduced fares for seniors, students, persons with disabilities, and low-income riders.

TAP offers a range of features to make travel more convenient. Users can purchase a transit pass or Stored Value for any agency in Los Angeles County. They can also manage multiple cards in their TAP account. TAP provides access to multimodal programs such as Metro Bike Share. Trip Tools allow users to plan trips, find nearby transit options, view real-time arrivals, and save favorite destinations and stops. TAP account holders can enjoy benefits such as Balance Protection, card management, discounts, promotions, transaction history, and friendly customer service.

TAP is accepted on 26 transit systems in LA County, including Angels Flight Railway, Antelope Valley Transit Authority, Baldwin Park Transit, Beach Cities Transit, Burbank Bus, Carson Circuit, Compton Renaissance Transit System, Culver CityBus, Foothill Transit, Gardena GTRANS, Glendale Beeline, Glendora Transportation Division, Huntington Park Transit Unlimited, LA County Department of Public Works, LADOT Transit, Los Angeles World Airports, Long Beach Transit, Metro, Montebello Bus Lines, Monterey Park Spirit Bus, Norwalk Transit, Palos Verdes Peninsula Transit Authority, Pasadena Transit, Santa Clarita Transit, and Torrance Transit.

As of November 2021, GooglePlay only permits app distribution to OS versions 11 and higher. Users on Android 10 and below should update their OS to get the latest TAPLA release.