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App Running on Two Phones Simultaneously with Input From Both

M

mopeyropeadope

Lurker
I have a food cart and want to improve the customer payment interaction. I want the customers to be able to input into a credit card app on a phone in front of them (their card info, tip, etc.), while I also input into that app on my phone (the extras they requested, changing an order, etc.).

Is there a way to do this?

I know that I can lock the customer phone on the app and I know that I can have a display app running on both screens, controlled from my phone. But I can't find a method -- app, different device configuration, or anything -- whose specs guarantee the result I seek.
 
do it at the server end, instead of messing around trying to sync the clients... have the 'shopping basket' saved there in such a way that you can both edit it...
 
Ahh... sorry.. i was assuming you were writing your own app... May be difficult getting this enabled in an existing app, as it could potentially to put a massive security whole in the payment process.

As a customer, I really can't think of a situation where i would want you to do this After I have supplied my credit card details. From a customers point of view its your job to do this BEFORE i provide the payment details. Otherwise any interaction we end up having isn't going to be a positive one!

I'd suggest talking to the support/developer for the existing app to see if there is a secure way of doing this
 
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