There's an app for that
San Antonio drives forward with new pay-by-phone parking app

Parking in the Alamo City just got as easy as opening an app. On June 5, the City of San Antonio drove forward with a new parking system that allows drivers to pay for parking directly from their phone — requiring no cash and no sticker.
SAPark is now available to use at 2,500 parking spaces around downtown, according to a release. The app is for both on-street spots and parking lots; a map of spaces inside the app's jurisdiction can be found here.
“SAPark will provide residents and visitors an easy and innovative way to pay for downtown parking ... drivers can easily start a parking session on their phones and get to their destinations quicker," says John Jacks, center city development & operations director, in a release.
To use the new cash-less system, download the SAPark app for iPhone or Android, and create a profile with payment options. Once your account has been made, add the vehicle's license plate and four-digit zone number, which is found on nearby signs labeled "SAPark." Add the zone number, length of stay, and boom — you're parked.
App users can also get alerts when time is almost up and extend their parking time directly from their phone.
“Parking is often the first experience people have when they come downtown, and we recognize our role in ensuring it is a positive experience,” continues Jacks.
Pay-by-phone apps have been slowly rolling out in Texas over the past few years. In addition to the June 5 debut in San Antonio, similar apps are available in Austin and Corpus Christi, and on the campuses of Baylor University, University of Texas at Arlington, and Sam Houston State University.