There are several options to subscribe. Choose the one that suits you best!
Google Play Store:
You have to use a device with Android and open your Vortex app. Go to your profile and click on the ‘subscribe’ button. You will be redirected to Google Play Store where you are able to pay for the subscription.
By credit card:
When you go to your profile you and click “subscribe” button, you see an option to pay for the subscription using your credit card. Please choose your type of card (Visa, Mastercard, Maestro, Visa Electron, Cirrus, American Express, JCB, Discover, Diners Club International) and follow the instructions.
When you go to your profile you and click “subscribe” button, you see an option to pay for the subscription using your Paypal. Please choose this payment method and follow the instructions.