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.
Get your own back on THE TWITS! In 3D for the first time ever! Poke Mrs Twit's glass eye, feed Mr Twit worms and play tricks to unlock mini games
$1.99 · In-app purchases
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 Roald Dahl's House of Twits: map the core Entertainment 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 variety may lead to user disengagement.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchases can be confusing or perceived as unfair.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can be cluttered or overwhelming.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Low ratings indicate performance issues.
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.
Get your own back on THE TWITS! In 3D for the first time ever! Poke Mrs Twit's glass eye, feed Mr Twit worms and play tricks to unlock mini games. Beware! Don't make the Twits too mad or things could get ugly – well, uglier . . . Explore the Twits’ house, including the filthy kitchen, Mr Twit’s shed and even the ghastly bathroom. YUCK! PLUS there are loads of secret ways to score Trick Points but you’ll have to find those for yourself . . . • Choose to play as Mr Twit or Mrs Twit • Discover multiple games in every room! • Listen out for Mystery Parcels with extra tricks! • Cook a disgusting dinner – spaghetti and worms, anyone? • Sprinkle itching powder on the toilet seat! • Hilarious fun for children aged 6–11 (and big twits too) • No in-app purchases so you can keep on tricking for as long as you want • No third-party advertising Artwork inspired by Quentin Blake rendered in 3D for the first time in the latest app inspired by Roald Dahl’s funniest characters, the Twits! Please note that Roald Dahl’s House of Twits requires iOS 7.1 and above! Looking for more fun inspired by Roald Dahl? Try the #1 app Roald Dahl’s Twit or Miss and get the Roald Dahl Audiobooks app to hear your favourite stories read by some very famous voices, including Kate Winslet, Stephen Fry and Chris O’Dowd. Who is Roald Dahl? Sitting in a hut at the bottom of his garden and surrounded by odd bits and pieces such as a suitcase (used as a footrest), his own hipbone (which he’d had replaced) and a heavy ball of metal foil (made from years’ worth of chocolate wrappers), Roald Dahl wrote some of the world’s best-loved stories, includingCharlie and the Chocolate Factory, The Twits, The Witches, The BFG, Fantastic Mr Fox, James and the Giant Peach and lots more. If you experience any technical issues please don’t hesitate to email us at [email protected]
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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.