A new taxi cab app makes it easier for D.C. residents to hail taxi cabs without standing on street corners.

Hailo, a global startup company that’s spread to 11 cities, charges passengers a flat rate of $1.50 to hail cabs any time of the day.

Unlike its popular competitor Uber, which changes its rates based on speed and hires its own fleet of drivers, the app allows drivers from anywhere in the city to use the service.

Hailo is one of the first apps to comply with the city’s patchwork of taxi regulations, such as streamlined payment systems, the Washington Post reported. Other taxi apps exist in the District, such as Taxi Magic, though they are notoriously unreliable.

The company, headquartered on Florida Avenue NW, launched in 2011 and has since served over five million customers.

D.C. has long sought to standardize its taxi services, and is requiring all cabs to accept credit cards by August.