PRONTO is a mobile app that makes buying fares for MTS and NCTD easier than ever. With PRONTO, you can pay-as-you-go by adding money to your PRONTO account with a credit or debit card. Every time you scan your app, the appropriate one-way fare is deducted from your balance. You will never be charged more than a Day Pass or a Month Pass, regardless of the number of trips you make. You can track your progress toward a Day or Month Pass in the PRONTO app. Pay-as-you-go features are not available for COASTER, and you must prepay for Day or Month Pass.

PRONTO also offers other features to help you plan your trip around San Diego without any problems. You can plan trips, see real-time arrivals, get service statuses, save favorite stations, and find stops for San Diego County area transit. The app also allows you to manage your PRONTO cards, register your PRONTO card for balance protection, load money onto your card using a debit/credit card, set up autoload to top off your card automatically when your balance gets low, and see your balance, current fare, and earned passes. You can also look up your recent scans, transfer times, and payment history, manage multiple PRONTO cards for your family or group, and block/unblock a lost or stolen card.

In addition, PRONTO offers Next Departures feature, which allows you to find next departures using stop number, address, or landmarks. You can see real-time bus and train service statuses and news, map and list view of nearby stops, list of recent stops and favorites. The app also offers Trip Planning feature, which allows you to plan a trip using popular landmarks or addresses, full trip itineraries with fare information, actual walking distance, and map view, set alerts to notify you when transit is arriving, see a list of recent trip plans, and save favorite stops for easy access. If you need more help, you can contact PRONTO Support at 619-595-5636.

Overall, PRONTO is a comprehensive mobile app that offers a wide range of features to make your transit experience in San Diego County area easier and more convenient. With PRONTO, you can pay-as-you-go, plan trips, manage your PRONTO cards, find next departures, and plan your trip with ease.