Math Learner funktioniert nicht

Subscription automatically renews for the same price and duration period as the original ""one week""/""one month""/""one year"" package unless auto-renew is turned off at least 24-hours before the end of the current period.  Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package (weekly, monthly or yearly package).  You may cancel a subscription during its free trial period via the subscription setting though your iTunes account.  However, you are not able to cancel the current subscription during its active period.  Absolviere die Level und du bekommst ein solides Verständnis mathematischer Grundlagen! - Die beste App zum Mathe-Lernen mit einer bewährten japanischen Methode. - Lerne Mathematik und verbessere deine Fähigkeiten! - Absolviere die Level und du meisterst die wichtigsten mathematischen Operationen!  Any unused portion of free-trial period, will be forfeited when the user purchases an app subscription.  No cancellation of the current subscription is allowed during active subscription period.  This must be done 24 hours before the end of the subscription period to avoid being charged.  You may turn off the auto-renewal of your subscription via your iTunes Account Settings.  Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase.  Payment will be charged to iTunes Account at confirmation of purchase.  You will be able to do all exercises for the duration of the subscription.  Viel Spaß beim Mathe-Lernen mit dieser tollen App und einer bewährten Methode.  You can subscribe for access to the full list of Math lessons.  In Zukunft kommen weitere Inhalte dazu!  Please visit: for more information.