Custom apps · Built in Puerto Rico
Software built around how your shop already runs. Booking that knows every board on the rack. A scanner that writes new stock up for you. It opens on any phone, in English and Spanish.
Why custom
| At the counter | Off the shelf | Built for you |
|---|---|---|
| Renting boards | Software made for tours. Customers can't see which board they get. | Each of the 117 boards on its own calendar. |
| Waves change | Swap one board, redo the whole rental. | Change one board. The booking stays whole. |
| New stock | About 30 new items a day, typed in by hand. | One beep. Name, photo and description fill in. |
| Your register | Type it all again for the register and the website. | One file, ready for 3 registers. |
That's why I build custom apps for small businesses. They still talk to the tools you already pay for: Scan Wizard's catalog imports straight into Clover, Square or Shopify.
Try them right here
A small taste of each one. Reserve a board, then beep a few items. The real apps do a lot more.
Pick the exact board, then a day. Booked days lock for everyone else.
New items write themselves up. Ones you stock just count up.
Sample boards and products, for play. Open the full demos from the case studies below.
The work · all three live
All three were built for Surf Zone, a surf shop in Aguadilla, Puerto Rico, then made ready for yours.
A full surfboard rental booking software for surf shops. Customers pick the exact board and their dates and pay a deposit. Your crew runs pickups, swaps and returns from one screen.
Scan Wizard, a barcode scanner app for retail stores. Beep a product: if you carry it, the count goes up. If it's new, its name, photo and description fill themselves in. You add the price.
Single Fin, a Shopify alternative for Clover shops. Surf Zone's own website and checkout, a back office laid out like Shopify's, and one stock count shared with the register. Built to replace six monthly bills, about $160 a month, with one store of their own.
| Build | Built for | Before | After |
|---|---|---|---|
| Surf rental booking | Surf Zone, 117 rental boards | Phone calls and tour software. No way to pick a board. | Each board on its own calendar, booked and paid 24/7 |
| Scan Wizard | Surf Zone's retail floor | About 30 new items a day typed by hand, twice | One beep writes an item up; 4 import formats |
| Single Fin | Surf Zone's online store | Shopify, 5 apps and Wix: about $160 a month. Restocks typed in twice | One store of their own, one stock count with the register |
Also live · built for my own webinars
Coquí, an AI notetaker that joins your webinars by itself. It sits in up to four rooms at once and puts the transcript, summary and audio on your phone.
Also live · runs my own projects
Focus Board, an AI project board. Every project on one board, each card opening on where you left off. The AI asks before it changes anything, and each client gets a private link to their own project.
How it works
You never get a manual and a YouTube link. You get a working demo, early, and someone who answers.
At your counter, with your staff. Where does time leak? What gets typed twice?
A working app on your phone, not a slide deck. Click it, break it, tell me.
Real bookings, real stock, in English and Spanish. Your changes go in.
Then I keep fixing whatever you want different. Quickly.
“One of the best and most coherent rental sites I have seen, both on the customer side and staff side.”
Questions owners ask
A custom app is software built for one business and the way it already works, instead of a general tool everyone shares. It runs in a phone or computer browser, so there is nothing to install. Examples here: a surfboard rental booking system and a barcode scanner app for a retail store.
Off-the-shelf tools are built for the average business, so you bend your shop to fit them. Surf Zone rented boards through software made for tours, and customers could not see which board they were getting. A custom app starts from how your counter actually works.
It can. Scan Wizard, the barcode scanner app, downloads your catalog ready to import into Clover, Square or Shopify, or as a plain spreadsheet for any other system.
No. Both apps on this page open in the browser on any phone or computer. Staff sign in and start working.
Yes. The surf rental booking system runs in English and Spanish, including the texts and emails it sends to customers.
Send a message or call (904) 614-7190. Miriam learns how your business runs, maps where time and money leak, and shows you a working demo before anything is final. You test it with your own staff and ask for changes.
Written by Miriam Chin, founder of Passionate Minds, Aguadilla, Puerto Rico.Published
Your shop next
Tell me the one job your crew does over and over. I'll come back with how an app could take it off the counter.