One API. Endless apps.

Order waffles from a menu or design your own: pick a batter, shape, toppings and drizzle, save it as a custom waffle and follow the order from griddle to pickup.

A video app with a topic feed, a player you can scrub and a mini-player that follows you between screens. Like, comment and subscribe, and every video resumes where you left off.

Find a garage on the city map, pick a free bay on its floor plan, choose your hours and slide to reserve. The QR ticket counts down live, and you can extend or end the session any time.

Shop frames by face shape, try them on a virtual face, build your lenses step by step and track the order to your door.

A professional network with a feed, reactions and comments, connection requests, a jobs board with one-tap apply and a profile strength meter.

Send disappearing photo snaps to friends, keep streaks alive and post 24-hour stories. A snap is deleted from the API the moment it has been viewed.

Send and request money between accounts with a keypad and slide-to-pay. One payment writes three records and rolls back if any of them fails.

Swipe through recipe cards to decide what's for dinner. Every swipe is a POST, undo is a DELETE, and liking the same dish as your partner makes a match.

A complete online shop: browse and filter products, a cart saved through the API, coupons, checkout that updates stock, order tracking, reviews and a store-admin view.

Companies, contacts, deals and an activity timeline. Drag deals through stages, watch the weighted forecast update and log calls, emails and notes on each deal.

A mini social network with profiles, posts, threaded comments and emoji reactions. Follow people, switch between For you and Following, and browse by #tag.

Track time with a live timer, watch project budgets and turn unbilled hours into invoices with one click. Invoices go from draft to sent to paid.

A learning platform with courses, lessons that unlock in order, quizzes with instant feedback, progress rings, certificates and a learner leaderboard.

Drag tickets across To Do, In Progress and Done. Each card is a record, and each drop saves with a PATCH.

Play a 5-second click challenge and post your score to a global top 10, read with sort_field=score.

A Slack-style chat with channels. Each channel is its own module, and new messages arrive by polling.

Track daily habits on a GitHub-style heatmap with streaks. Check-ins are stored as arrays on each habit record.

Customers order on one side and the kitchen moves tickets from New to Cooking to Ready, with live timers.

A small headless CMS. Write drafts, publish them with one PATCH and search every post using the built-in search param.

A storefront grid with category filters, price sorting and stock levels you can edit inline.

An event page with a live guest list. RSVP with a POST, cancel with a DELETE and watch the remaining seats count down.

Ask a question and vote on it. Each vote PATCHes a counter, and the results bars animate as the numbers change.

Log expenses, see spending broken down by category and fix mistakes. Every chart is built from one GET.

A clean to-do list: add, tick off and clear tasks. The same three calls work from React Native or Flutter.

A wall of colourful notes you can edit in place, pin and recolour. Changes autosave with a PATCH when you click away.

Visitors leave a message and an emoji on a shared wall. It works for portfolios, weddings and launch pages.

Collect star ratings and comments. The average score and rating breakdown are worked out from a single GET.

Save links with tags and favicons, then filter by tag. It's a small read-it-later app built on one module.