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.
App Overview
Phrasal Verb Dictionary Pro
This app provides the most comprehensive and advanced version of the dictionary of phrasal verbs.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Phrasal Verb Dictionary Pro: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Incorporate quizzes or games to reinforce learning.
Assumption to check: Limited interactivity and engagement features.
Validate with people who use this workflow before building.
Hypothesis 2
Implement an advanced search feature with filters.
Assumption to check: Users may struggle to find specific verbs.
Validate with people who use this workflow before building.
Hypothesis 3
Add a feature for users to submit and rate new phrasal verbs.
Assumption to check: No user-generated content or community features.
Validate with people who use this workflow before building.
Hypothesis 4
Include audio pronunciations and example videos.
Assumption to check: Lack of multimedia support.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
This app provides the most comprehensive and advanced version of the dictionary of phrasal verbs. This app covers around 6,000 phrasal verbs current in English. Clear explanations and guidance help learners master this difficult yet essential aspect of the English language Sample sentences - Each phrasal verb comes with a number of sample sentences so that you can easily learn how to use it in context. Search - You can find a phrasal verb not only by its verb or preposition, you can look up for it by its meaning. You can find all phrasal verbs with meaning "to prevent something" Verbs - Phrasal verbs are grouped by verbs Preposition - Phrasal verbs are grouped by prepositions. Unit - 82 units - Learn phrasal verbs in a unit Spaced repetition flashcard - Flip a card to see a phrasal verb's meaning - You can choose phrasal verbs from default units or from your own lists Built-in dictionary - Press any word and select "Look up" to open the built-in dictionary Translation - Translate a sentence into your own language - Select your translation language in settings Others features include: - Easy navigation - Bookmark an entry - Search an entry
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
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BUILD KIT DIFFICULTY
Intermediate
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.
