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.
Every party hides a secret.
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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.
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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.
Rork plan preview for Gatsby: The Green Light: map the core Books workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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.
Hypothesis 1
Assumption to check: Limited content options for reading
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No offline reading mode
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent user interface
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Every party hides a secret. F. Scott Fitzgerald's masterpiece, reimagined as a game you can play, explore, and conquer. 8 games. 18 scenarios. 9 chapters. All in your pocket. 8 GAMES. 9 CHAPTERS. 18 SCENARIOS. THE GREEN LIGHT AWAITS. 8 GAMES. ENDLESS REPLAY. Sliding Puzzle. Reassemble Art Deco cover art, tile by tile. Memory Match. Flip cards and find matching pairs from all 9 chapters. Guess the Chapter. See a cover, name the chapter. Two Truths & a Lie. Spot the false statement hidden among truths. Who Said It? Match passages to the right chapter. Name That Chapter. Identify chapters from character clues. Chapter Compass. Connect chapter themes to their stories. Character Match. Link characters to their chapters. Chapter Spinner. Spin and land on a random chapter. Every game pulls from all 9 chapters. Every round is different. WHY PLAYERS LOVE IT New rounds every time you play. No two games are the same. Puzzles challenge your eye for detail. Memory match sharpens your brain. Trivia tests what you really remember. Art Deco cover art on every card. Instant feedback after every answer. No loading screens. No waiting. Just tap and play. PLAY ANYTIME, ANYWHERE No internet needed. No login required. Open the app and start playing in seconds. On the bus, in bed, waiting in line. Your games, your pace, your journey across the bay. Read a chapter. Absorb the story. Then face scenarios that put you inside the narrative. One correct answer. Get it right and earn XP. Get it wrong and discover exactly what the American Dream costs. Some choices seem obvious. Some will surprise you. All of them pull you deeper into Gatsby's world. LISTEN AFTER DARK Put on your headphones and let the story read itself to you. Every chapter plays as continuous narration, one after another, on your commute, in bed, or before you sleep. Background playback, lock screen controls, with adjustable narration voice and speed. 21 CHARACTERS. NONE OF THEM ARE INNOCENT. Jay Gatsby. Nick Carraway. Daisy Buchanan. Tom Buchanan. Jordan Baker. Each one plays a part in the unraveling. Browse detailed profiles, track who appears in which chapter, and discover connections you missed. The more you know, the more you see the web tightening. LEVEL UP FROM STRANGER TO GATSBY Every correct answer earns XP. Climb through 5 ranks: Stranger, Guest, Confidant, Old Sport, Gatsby. Unlock achievements. Build a daily streak. Watch your progress grow across all 9 chapters. This is not reading. This is obsession. DAILY CHALLENGE One new scenario every day from across all 9 chapters. Quick. Sharp. Addictive. How well do you really know the novel? EXPLORE THE JAZZ AGE 164 glossary terms covering 1920s slang, Prohibition, Jazz Age culture, and literary history. 145 timeline events that track the story chapter by chapter. 47 locations across 1920s New York and Long Island. 12 curated reading paths for thematic journeys through the novel. The deeper you go, the more you see. BEAUTIFUL. OFFLINE. YOURS. Pure black OLED dark mode with Champagne Gold accents. Art Deco elegance on every screen. No internet required. No account needed. No ads. No distractions. Just you and the green light. ONE PRICE. EVERYTHING UNLOCKED. All 9 chapters. All 18 scenarios. All 8 games. Audiobook narration for every chapter. Every character, glossary term, timeline event, location, reading path, daily challenge, and achievement. No subscriptions. No in-app purchases. No ads. Ever. The green light is waiting. SUPPORT Questions or feedback? [email protected] Privacy: https://pages.stackbase.space/legal/privacy-policy Terms: https://pages.stackbase.space/legal/terms-of-service
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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.
From the Build Kit assessment.
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.