The subscriptions have a period of one month and charge your iTunes account after confirmation of purchase.
Users can support the developer via InApp purchase / subscription (see general settings / Support further development).
Note that the subscription is automatically renewed if automatic renewal is not deactivated at least 24 hours before expiration.
If renewed, your iTunes account will be charged within 24 hours before the end of the current period.
Avec EnergyTracker, vous pouvez facilement ajouter, gérer et évaluer vos relevés de compteurs.