Quality is the biggest lever
Video quality decides your data bill more than anything else. Dropping from HD to SD cuts usage by two thirds or more, and on a phone screen the difference is modest. Set the player quality manually instead of leaving it on auto, which loves to creep upward. Since the Cinemana APK itself is only 15.5 MB, the app will never be the thing filling your storage. The quality guide maps each level to its data cost.
Wi-Fi first habits
Simple rule: stream on Wi-Fi, browse on mobile data. The Shabakaty Cinemana catalog is light enough to browse on a data plan, so save the heavy video bytes for Wi-Fi. If you must watch on mobile data, pick shorter episodes over two-hour films, and pause rather than re-buffering the same section repeatedly, which is also the core of the buffering fixes.
Background data
Open Settings, then Apps, then Shabakaty Cinemana, then Mobile data, and switch off background data. The app has no reason to use data when you are not watching. This one toggle stops the quiet drain that surprises people at the end of the month.

