The subscription automatically renews unless it is cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Notes * The compass accuracy depends on having an undistorted magnetic field around your device. If you use it close to metallic objects or electrical equipment, directional accuracy may be impaired. This can happen if you keep your device in a metallic casing. It can however be recalibrated quite easily.