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.
"...very well done." (bestappsite.com)
$4.99 · 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 Dr. Reichel's IQ Test: map the core Medical 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 test variety and depth
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent feedback on test results
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic user interface
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited social sharing options
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.
"...very well done." (bestappsite.com) The test consists of 70 questions, organized into thirteen thematic sections. The questions must be solved in a predetermined sequence. The IQ test was developed for single use only. While designed to be enjoyable, its primary purpose is to determine your IQ with the highest possible accuracy. According to current definitions, intelligence is composed of a variety of different mental abilities. Dr. Reichel's IQ test includes different parts, allowing the following characteristics to be examined: • Comprehension • Linguistic ability • Analytical thinking • Logic and reasoning • Abstract thinking • Working memory • Quantitative reasoning • Spatial judgement • Processing speed and accuracy The psychologist Dr. Wolfgang Reichel is a renowned IQ expert and the author of numerous books on the topic of aptitude and IQ tests. He has developed IQ tests for leading newspapers and television programs. Working with the team at the binary family, he conceived this test specifically for use on the iPhone. Features: • Evaluation of your abilities in 13 sections with a total of 70 questions • Explanatory example preceding each section • Meticulously developed interface, designed especially for iPhone • Concentration-enhancing music (optional) • Option to continue an interrupted test upon returning to program • 5 language options (English, French, German, Spanish, Italian) set automatically according to iPhone's country setting • Results for each user saved Please read before purchasing this app: • The test can only be used once per person • Allow 45 minutes for the test and avoid distractions • The results of the IQ test can be affected by various factors, including momentary physical and emotional condition, as well as outside disturbances • This test cannot take the place of a professional IQ test. Professional tests are administered by psychologists and are significantly more complex. • This test is designed for adults and young people age 15 or older • In the interest of accuracy, IQ results will only be calculated up to 145
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.