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.
IMAGINE YOUR CITY… AND BRING IT TO LIFE!
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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 Pango Build & Explore City: map the core Education 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 building options can make the app repetitive.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users report crashes during heavy usage.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of multiplayer features limits social interaction.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase system can be confusing.
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.
IMAGINE YOUR CITY… AND BRING IT TO LIFE! Draw your roads, lay your rails, place your buildings and create a city just the way you like it: small houses, tall buildings, parks, shops, monuments… Here, everything begins with a simple swipe of a finger. Place Pango and friends in their roles: firefighter, mail carrier, doctor, shopkeeper… They drive, work, visit, wander around, go home to sleep at night… and bring life to everything you create. Every street becomes a story, every district an adventure. Pango Build City is an open-ended construction game that develops creativity, organisation, exploration and fine motor skills. An intuitive, open experience perfectly suited for children aged 3 and up. A PANGO CREATION With over 15 years of experience and more than 15 million children worldwide, Pango is a trusted name for parents looking for calm, intelligent and gentle games. Pango Build City continues this philosophy: a lively building game designed to spark creativity, logic and the pride of creating. WHY PARENTS LOVE PANGO BUILD CITY - Boosts imagination and sense of organisation - Builds logic and understanding of how a city works - Strengthens fine motor skills through road and rail placement - 100% open construction: children create, modify and expand their city freely - A gentle, lively world with no stress or competition - Simple, smooth and perfectly adapted to small hands - 3 pre-built cities to support younger children A 100% CHILD-SAFE GAME • No in-app purchases • No advertising • No external links • Built-in parental controls • Complies with children’s data protection standards THE PANGO VALUES: CREATIVITY, AUTONOMY, KINDNESS At Pango, we design experiences from a child’s perspective: simple, open and enriching. Our games nurture curiosity, encourage independence and let every child imagine their own world. Need help? A question? [email protected] More information: www.studio-pango.com DOWNLOAD PANGO BUILD CITY and let your child imagine, build and bring their own city to life: A WORLD TO CREATE, ADVENTURES ON EVERY CORNER!
Written user reviews are not shown here. Check current App Store reviews >
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.