Back in March, Netflix revealed that it was working on a "data saver" feature for its mobile apps. Keeping its word, the streaming service announced today that the cellular data tool that allows users to adjust video quality to save data is available in its iOS and Android apps. In fact, we're seeing the new feature in both Netflix apps here at Engadget HQ. By default, the software adjusts video quality to allow for about 3 hours of streaming per gigabyte of data. The company says that tests showed this to be the best balance of data use and quality when streaming over a cellular connection.In addition to the default setting, there are options for low, medium and high quality streaming that allow for four hours, two hours and one hour of watching with 1GB of data. There's also a setting for those with unlimited data plans, and if you don't want to use any of that monthly allotment, you can opt to only stream movies and TV shows on WiFi. Netflix also offered the reminder that even if you choose higher quality in the app, your mobile service provider may place its own limits on bandwidth. Regardless of networks fiddling with quality, these new quality settings should help folks who enjoy an episode of House of Cards on the go, but regularly exceed their data caps.