What you just wrote makes no sense, and here is why:
First, its a mobile platform, its never been a web application platform, other than it uses HTML5. Look at the front of Appery, the clues are there.
Second, I have already explained, follow that tutorial and it will not work. The developer email, for example, does not help and that alone will not give you the token. Rather than ask me to do all the work, when i have spent 2 days working from one of your webinars, to show you step by step instructions, when I have already said, do the tutorial, again while I pay for this apparent service, takes the piss that little bit further. I am a customer, and you are failing me!
Third: If the plugin is only to get the token, then when i put a payment through, which is another call and the idea, the redirect would still go to the wrong place, as it does now, because the payment call also requires redirects (return and cancel) within the JSON data, along with transaction and payer.
So you can see, the webinar is useless for mobile apps, the fact you fail to see this really does, surprisingly, amaze me. Considering its a really good How-To also, makes it worse that you suggest its an example for a web application.
Follow your own tutorial, step by step, to the letter, and it will not work. I tried to make it work before I looked on youTube and found the webinar!