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
Super Magic Crystal Ball
Unlock the power of the universe and receive insightful answers to all your YES/NO questions with Super Magic Crystal Ball
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
1 ratings · Below Average
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 included14 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 Super Magic Crystal Ball: map the core Entertainment 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
Offer unique interaction methods or additional features like personalized readings.
Assumption to check: Limited features compared to similar apps
Validate with people who use this workflow before building.
Hypothesis 2
Implement a variety of responses or allow for user-generated answers.
Assumption to check: Low user engagement due to repetitive answers
Validate with people who use this workflow before building.
Hypothesis 3
Clearly outline benefits of in-app purchases to increase conversion.
Assumption to check: In-app purchase clarity
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize crystal ball appearance or save favorite answers.
Assumption to check: Lack of user personalization
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
Unlock the power of the universe and receive insightful answers to all your YES/NO questions with Super Magic Crystal Ball. Experience the thrill of shaking the all-knowing crystal ball and watch as it provides you with an answer that may surprise you. Whether you're at a gathering with friends or seeking answers on your own, Super Magic Crystal Ball is the perfect solution for finding the answers you seek. This app takes your fun to the next level, with features that set it apart from traditional "magic 8 ball" toys. Enjoy the enhanced HD graphics, which bring the crystal ball to life in a way you've never seen before. Say goodbye to distracting ads and hello to endless entertainment with the wide range of answer options available. The convenient mute/activate sound button allows you to control the volume, and the reset button means you can keep asking questions without interruption. Get ready to discover the answers you've been seeking with Super Magic Crystal Ball.
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
React Native
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Axios
Async Storage
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BUILD KIT DIFFICULTY
Starter
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.
