// CASE-01 · Real case
Club Dossier Motor
Dossier Motor's subscription perks club, end to end: public website, Mercado Pago subscriptions, a virtual membership card with a QR code that changes every 30 seconds, and in-store validation from the browser.
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Illustration of the virtual membership card with a dynamic QR. Fictional data. -
// 01 · The challenge
A perks club, from scratch, for three sides at once.
Dossier Motor is a media brand from the car world in Argentina. It wanted its own subscription perks club: people pay a fee and get discounts at repair shops, tire shops, oil change centers, car washes and parking garages.
Nothing existed yet. The system had to work at the same time for the members who pay, the stores that give the discounts and the brand, which needed to see how each perk is used.
// 02 · What we built
A complete system, not a standalone app.
For members
- Public website with the perks and the plans.
- Monthly or yearly subscription with Mercado Pago: automatic billing, plan changes, one-step cancellation and a cancel-within-the-grace-period button.
- A virtual membership card with a member number each person picks.
- Installs on the phone like an app, no app store needed.
For partner stores
- Store sign-up and discounts by category.
- Stores validate the card by scanning the QR code from their phone's browser, no extra devices.
- Every use is recorded.
For the brand
- A panel showing how each perk is used, by location and by date.
- Everything in one system: members, payments, stores and metrics.
// 03 · How it works
Three steps for members.
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Subscribe
Pick a monthly or yearly plan, choose a member number and pay with Mercado Pago.
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Show the card
At the store, open the card on the phone and the store scans the QR code.
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Save at checkout
The store validates the QR code and applies the discount at the register. No coupons or codes.
// 04 · The tech, in plain words
What's under the hood, no jargon.
- Mercado Pago
- Charges the subscription every month or once a year, so members don't have to remember.
- Installable web app
- The card opens from the phone like an app, without downloading anything from a store.
- A QR code that changes every 30 seconds
- Each code only works for a short time, so nobody can use someone else's screenshot.
- Validation from the browser
- Stores use the phone they already have: no scanner or new system needed.
- Metrics panel
- The brand sees which perks are used, at which location and when.
// 05 · Result
Live, end to end.
The complete system is live: website, subscriptions, QR membership card, in-store validation and metrics panel.
“They understood exactly what we needed and turned our idea into a real product in record time. In just two weeks we had the first version up and running, live. We value their ability to interpret requirements, their speed of execution and the quality of their work. We highly recommend them!”
Got a similar project?
Memberships, QR perks, subscriptions or a custom system: let's look at it on a 30-minute call.