Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Turn your city into a game.
Free
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Turn your city into a game. Questo is an outdoor escape game, scavenger hunt, and self-guided walking tour in one app. Over 1 million players. Rated 4.7 stars. Playable in 1,000+ cities worldwide. Need a date-night idea, a weekend activity with the kids, or a fresh way to see a city you love? Put the phone between you and the streets, and the real world becomes your playground. TWO WAYS TO PLAY 1. Outdoor escape games (for locals) Spontaneous adventures in your own city. Like an escape room, but outdoors. • For couples: "Murder Mystery: Crime on Date Night." Skip dinner and a movie and team up to catch a killer. • For families: "Kid Quest," made for ages 4 to 8. Walk the park, solve easy riddles, take photos together. • For friends: race to crack the case before time runs out. 2. Story-driven tours (for travelers) Don't just look at landmarks. Step into the story behind them. Local writers turn history and legend into walking games. • New York: "Hamilton." London: "Jack the Ripper." Zurich: "Einstein." Paris: "Lost Lovers in Montmartre." • And new adventures: "Murder Mystery Zodiac," "The 9 Lives Heist," and "The Lost Gold." MORE THAN READING, IT'S PLAYING Questo isn't a text walk. It's interactive. • Puzzles that use your phone and your senses, like blowing on the screen to clear the dust and reveal the next clue. • Video woven into the story, so you watch history come alive instead of just reading about it. • Time Rifts: see how the place you're standing looked centuries ago. • Every quest reshapes the app to match its world. PLAY TOGETHER • Co-op: share one phone and solve as a team. • Versus: split into teams and race. The leaderboard shows who's fastest. • Crews: join or start a group, play together, and compete for the top spot. KEEP THE MEMORIES • Memories: after you finish, re-read every story and relive the quest. • Explorer Photos: see real photos from other players, and share your own. PLAY IN YOUR LANGUAGE Quests in multiple languages, many with an audio version so you can listen as you walk. HOW IT WORKS Download and browse the map to find a game near you. Head to the starting point. No schedule, start whenever your group is ready. Use the statues, buildings, and street art around you to solve riddles and unlock the next part of the story. WHY QUESTO • Real connection: put the screens down and be with the people around you. • Budget friendly: far less than an escape room or a guided tour. • Flexible: pause for lunch or a coffee anytime. • Gift it: buy a quest for someone you love. Ready to play? Download Questo and turn your next walk into an adventure.
Written user reviews are not shown here. Check current App Store reviews >
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
Not assessed in a Build Kit yet.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.