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
WolframAlpha Classic
Use the power of Wolfram's computational intelligence to answer your questions
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.1
1,255 ratings · Top 30%
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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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 WolframAlpha Classic: 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
Enhance computation features with AI integrations.
Assumption to check: Limited computation capabilities compared to advanced tools
Validate with people who use this workflow before building.
Hypothesis 2
Improve data sources for more comprehensive answers.
Assumption to check: Some queries return incomplete results
Validate with people who use this workflow before building.
Hypothesis 3
Simplify layout and improve user experience.
Assumption to check: User interface can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Streamline the purchase flow and provide clear information on features.
Assumption to check: In-app purchase process is confusing
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
Use the power of Wolfram's computational intelligence to answer your questions. Building on 35+ years of development led by Stephen Wolfram, Wolfram|Alpha is the world's definitive source for instant expert knowledge and computation. Across thousands of domains—with more continually added—Wolfram|Alpha uses its vast collection of algorithms and data to compute answers and generate reports for you. Parts of Wolfram|Alpha are used in Apple's Siri assistant; this app gives you access to the full power of the Wolfram|Alpha computational knowledge engine. Use Wolfram|Alpha to compute the following and much more: • Identify a plane: "Flights overhead" • Find out weather: "Weather last New Year's" • Get information on movies: "Movies with Keanu Reeves and Sandra Bullock" • Get financial insight: "APPL vs. MSFT" • Calculate units and measurements: "Seconds in a nanocentury" • Get trivia answers: "Number of tennis balls that can fit in a Boeing 747" • Find nutritional information: "Whopper vs. Big Mac" • Get fitness information: "Running calculator" • Have fun: "Tell me a joke" Subscription Details: Become a Wolfram|Alpha Pro member to unlock additional features. Payment will be charged to your iTunes account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Subscription fees are $9.99 per month or up to $59.99 per year depending on your plan. You can manage your Wolfram|Alpha Pro subscription by visiting the iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a Wolfram|Alpha Pro subscription. Privacy policy: https://www.wolfram.com/legal/privacy/wolfram Terms of use: https://products.wolframalpha.com/iphone/app-internal/termsofuse.html
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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
React Native
Expo
Supabase
React Navigation
Zustand
React Native Elements
BUILD KIT DIFFICULTY
Expert
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.
