If you use a mobile phone below iPhone 5, running GPS in the background can record your walking more accurately. However, it may still reduce the battery life. You can go to "Settings"> "Walkr" on your phone to stop the "Location" function of Walkr. Any problems or suggestions? We would love to hear from you! Find us on Facebook: http://facebook.com/walkrgame Or visit us: https://sparkful.app/walkr -- Super Pilot is a monthly subscription service that allows you to get an extra co-pilot position with 80% conversion rate. US$1.99 will be charged on your iTunes Account after confirmation and when the subscription renews monthly. The subscription will renew automatically each month. Account will be charged US$1.99 for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of the free trial period will be forfeited when the user purchases a subscription. -- Privacy Policy and Term of Service: https://sparkful.app/legal/terms