Hi, I was wondering if there is an app that enables loyalty cards sharing. When you open it, you can enter your card code of the Store. Now you can use a card of any other participant who entered his own card for the Store (the backend will send a random one) and your code can be used by anyone else using the service. Usually the cards are just permanent ID (shown as a bar code), so it shouldn’t be that hard to implement.

While using this, the shop would have no chance of creating a profile on you and tracking you (as the purchases would be “random”), they have these data anyway. You would only give up the data you fill in when you ask for the card.

Do you know something like this? Or am I missing something important, or do you see some major flaws in this design (I don’t use loyalty cards, but sometimes they could be quite useful)? Thanks

  • Since the company that manufactures usually is different from the loyalty card provider, it’s probably safe to just take a screenshot of the loyalty app with the card being visible, and then just using that screenshot during checkout.

    Even if you do not plan on actually cashing in on the benefits (which, if you shared the card, might be considered fraud), just presenting the card and creating random and unusable profiles could be a fun thing.

    Personally, I would only consider using these screenshot for cash transactions, as credit card payments might be traced back to you.

  • @reibekuchen@lemmy.world
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    22 years ago

    That’s a great idea! I have thrown together a small web app to “emulate” the loyalty card for Payback, one of Germany’s biggest loyalty card providers. Take a look here: https://apfelkompott.codeberg.page/loyalty-card-hosting/

    To get started with some of the codes, I have scoured the web for images of cards, and added those to a list. (I’ve also provided the sources as part of the app.) You can also modify the code in the URL. As long as it’s a valid EAN13 value, the bar code should render just fine.

    Adding new providers/codes should be easily doable, if we had screenshot of the apps that show the design and the number format used for the code.

    Let me know what you think.

    PS: For the record, I am not affiliated with Payback, nor do I endorse using other people’s card or code. This emulator is meant to be used with your number and your number alone.

    • @to_urcite_ty_kokos@lemmy.worldOP
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      22 years ago

      That’s looking quite promising. The main thing missing before being ready for me is filter/add by region and of course shop name. Then it can go out i think (+ give me a random code feature as the next step).

      And make a new post with this, no one will notice otherwise (if you haven’t already)

      • @reibekuchen@lemmy.world
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        12 years ago

        Thanks for your suggestion! I’ve created a dedicated post for the app.

        Regarding your suggestions, it’s already possible to use a random code: When clicking the “Enter code” button at the top, a random code is suggested to you. With a click on “Let’s go”, you get to the card with that random number.

        If you have some experience with TypeScript and/or React, feel free to fork and contribute! I’m always happy for pull requests.

  • auth
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    12 years ago

    That would be nice… Because they are super annoying from a privacy standpoint but usually let you save a bundle

  • @WhoRoger@lemmy.world
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    12 years ago

    It would be nice, but the important part is to apply for a loyalty card with fake credentials. If you apply for a card with your real name and then let somebody else use it, that just makes stuff weird.

  • @themasteryang@lemmy.world
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    02 years ago

    I’ve been using the stocard app on android. You can just add the card to your phone and then someone else’s phone and now you both have it.