One app I built and still run on the App Store and Google Play, an example admin console that takes a wholesaler from customer orders to month-end billing, and nine example sites for companies and local shops, each laid out around what that trade's customers look for first.
2024 to now
A family food inventory app: scan a label or receipt, and expiry dates, ingredients and allergens land in a shared list. On both stores since 2024, with a release most weeks.
Read the case
The back office of a made-up commercial kitchen wholesaler: customer orders, shipping, month-end billing and support in one place. Admin, operator and read-only roles each see different menus and buttons, and on a phone it runs from a bottom tab bar. Customers, staff and amounts are invented, and any status you change resets when you reload.
Example build · fictional business
Commercial kitchen wholesale · orders, billing, support
Menus and buttons change with each role. Pick orders to change their status in one go or export them to Excel, and close the month on the billing screen.
Nine made-up businesses in Korea, nine different layouts. Names, addresses, phone numbers and prices are invented, and the photos are free Unsplash images. Each card opens a working site. Nothing typed into the quote or consultation forms is sent anywhere.
Example build · fictional business
Precision machining · Siheung
A control-panel readout shows the process you are looking at, and sending a drawing tells you when the quote comes back.
Example build · fictional business
Tax & bookkeeping · Mangwon-dong
One ledger line that dips at every filing deadline, with a fee table and a month-by-month to-do list.
Example build · fictional business
Bakery · Anyang
Bread-out times on the first screen, with a live open or closed sign.
Example build · fictional business
Interior remodeling · Suwon
Drag the handle to compare before and after, then read the build schedule.
Example build · fictional business
Nail salon · Mangwon-dong
Tap a design photo, pick a time, and both land in the booking form.
Example build · fictional business
Neighborhood grocery · Sillim
This week's flyer deals, shown as price tags on the shelf photo.
Example build · fictional business
Pilates · Jeongja-dong
Tap a weekday for that day's classes and the earliest open spot.
Example build · fictional business
Math academy · Junggye-dong
A graph-paper notebook with the exam countdown, timetable and refund rules.
Example build · fictional business
Auto repair · Bucheon
Tap a dashboard warning light to see when to come in and a rough cost.
Send me two paragraphs about it. I reply within 24 hours, Seoul time, with a price and a date.
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