Aviation Classics Magazine 对比 NewtonianMechanics 的使用情况和统计数据

Welcome to Aviation Classics, a series of high-quality glossy publications centred on the world’s greatest aircraft, the events in which they played crucial roles and those who flew, maintained and supported them. Every issue focuses on one aircraft, or significant event in history. Aircraft covered so far include the Avro Lancaster, the P-51 Mustang, Supermarine Spitfire, and the English Electric Lightning. Famous events covered include; World War 1, and the Battle of Britain. Each issue contains carefully researched data, unique photography - including some never before seem images, and in-depth features on the aircraft and those who flew them. ---------------------------------------------- This is a free app download. Within the app users can purchase the current issue and back issues. Subscriptions are also available within the application. A subscription will start from the latest regular issue at the time of purchase. -The subscription will renew automatically unless cancelled more than 24 hours before the end of the current period. You will be charged for renewal within 24 hours of the end of the current period, for the same duration and at the current subscription rate for the product. -You may turn off the auto-renewal of subscriptions through your Account Settings, however you are not able to cancel the current subscription during its active period. -Payment will be charged to your iTunes account at confirmation of purchase and any unused portion of a free trial period, if offered, will be forfeited when a subscription to that publication is purchased. -If a subscription offers a free trial, at the end of the trial period, you will be charged the full price of the subscription. You may cancel a subscription during its free trial period via the subscription settings on your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. Users can register for/ login to a pocketmags account in-app. This will protect their issues in the case of a lost device and allow browsing of purchases on multiple platforms. Existing pocketmags users can retrieve their purchases by logging into their account. We recommend loading the app for the first time in a wi-fi area so that all issue data is retrieved. If your app will not load past the splash page after a first install or an update, please delete and reinstall the app from the App Store Help and frequently asked questions can be accessed in-app and on pocketmags. If you have any problems at all please do not hesitate to contact us: help@pocketmags.com -------------------- You can find our privacy policy here: http://www.pocketmags.com/privacy.aspx You can find our terms and conditions here: http://www.pocketmags.com/terms.aspx