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.
365,000 headwords, phrases and translations
$29.99 · 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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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 Big German English Dictionary: map the core Reference 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 offline capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Slow search results
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of example usage
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent UI design
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.
365,000 headwords, phrases and translations. english - german. german - english. use offline – even abroad. the ideal dictionary app for work, study, travel and everyday situations. available with free vocabulary trainer. millions of users can't be wrong! from the no. 1 dictionary publisher.* langenscheidt standard-wörterbuch englisch offers: - approximately 365,000 headwords, phrases and translations with recordings by native speakers - up-to-date vocabulary taken from general usage and numerous specialist fields - practical guidance on grammar and spelling variants - for work, travel and everyday situations - size l: from our comprehensive standard dictionary series * according to the market research institute gfk entertainment gmbh, langenscheidt is germany's best-selling dictionary publisher. main features of the dictionary app - rapid search and display of dictionary entries - no internet connection necessary. the app functions offline and in flight mode. plus no roaming fees abroad. - recordings of important entries by native speakers (german and english) - numerous search preferences (full text search, search for similar words etc) - verb declension and conjugation tables - save your favourites – quicker access to words you look up most often - menus, fonts, colours – a whole variety of options for personalizing your app - free vocabulary cards quiz for learning vocabulary the langenscheidt dictionary series - expert: size xxl – our largest and most comprehensive series – it doesn't get better than this! - professional: size xl – our extra-large and extra-comprehensive dictionary series. - standard/big: size l – with comprehensive coverage – our all-rounder! - basic/medium: size m – with clear and simple layout – ideal for travel!
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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.