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.
This app provides thesaurus, collocation and word usage dictionary for you to develop vocabulary skills.
$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 Vocabulary Builder: thesaurus,: 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 customization of search results
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of interactive learning features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Repetitive user experience
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.
This app provides thesaurus, collocation and word usage dictionary for you to develop vocabulary skills. ● Thesaurus Do you need to find a synonym for a word or to paraphrase a sentence ? Look up "because of" in this thesaurus and you will find "on account of", "as a result of", "as a consequence of", "owning to", "due to", "thanks to" etc. You want to replace "stem from" with other phrase. Look up "stem from" and you will find "have its origin in", "arise from", "originate from", "derive from", "come from", "emanate from", "be caused by", "be brought about by" You want to find synonymous phrases for the verb "consider". Search in the app and you will find "take into consideration", "take into account", "give thought to", etc. Containing over 14000 entries, the thesaurus will help you find synonyms and antonyms of a word or phrase that commonly used in English. ● Collocation - This collocation dictionary teaches you how to combine words with words to form phrases - It also teaches you how to combine words into structures to form clauses and sentences - It shows you important vocabulary and grammatical differences between American and British English. - It gives you plenty of examples that can serve as models for your own use of English. - Some of these examples are quotations from works of American and British literature. ● Word Usage Do you know what is the difference between "among" and "between", "award" and "reward", "gender" and "sex", "figure" and "number", "make of" and "make from", "excerpt" and "extract", "exotic" and "esoteric", "famed" and "famous", "final" and "finale" ? Do you often mistake "venal" with "venial", "effective" with "efficient", "eminent" with "imminent", "epidemic" with "endemic", "factitious" with "fictitious", "forbear" with "forebear", "forego" and "forgo", "required" and "prescribed", "comprehensible" and "comprehensive" ? The word usage dictionary contains over 3000 entries of commonly misused words, words that commonly mistaken with other words, words that can be used exchangeably, words that have contrast meaning, words that have similar meaning. ● User-defined list - Create your own list - Add a word into a list ● Basic features: - Bookmark an entry - Search for an entry - Learn vocabulary daily with Words of the day ● If you want to suggest a new feature or report a bug, please send feedback to us. We love getting feedback from users.
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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.