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
9 Star Ki Astrology Lite
The 9 Star Ki lite version, leads you step by step through techniques and lessons to do professional predicts by yourself
$9.99 · In-app purchases
PRICE
$9.99
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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What's included15 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 9 Star Ki Astrology Lite: map the core Lifestyle 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
Provide clear explanations and tutorials within the app.
Assumption to check: Difficulty understanding astrology concepts
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their profiles and insights.
Assumption to check: Limited personalization options
Validate with people who use this workflow before building.
Hypothesis 3
Implement a clear, user-friendly paywall and subscription explanation.
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Regularly update insights and provide new features to keep users engaged.
Assumption to check: Lack of engaging content updates
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
The 9 Star Ki lite version, leads you step by step through techniques and lessons to do professional predicts by yourself. Easy and accurate calculation of your personal stars as well as the Annual, Monthly and Daily Flying Stars. To find your third Personal Number, you can use two methods: 1) your 3rd Star that results from the Year and Month of your Birth 2) the original calculation of the Flying Star of the Day. 9 Star Ki is a Traditional System that allows us to develop insight into the movement of Life Energy or Ki (Qi). All things exhibit a certain rhythm, and by understanding this rhythm, we can better see future tendencies in individual character and personality, relationships within the family and among partners, weather and climactic conditions, and cycles of history and social change. Originating from the low of eternal change it shines a clarifying light on past events and future probabilities and is surprisingly accurate in predicting individual and social destiny. Working with Nine Star Ki you will be surprised by the amazing accuracy of this system. You will begin to discover why you relate easily to some people and why you feel overruled by others. This Application Includes: - Exploring the 9 Magic Squares - Annual, Month and Day Squares - The Role of Houses and Stars - Basic Attributes and Properties for the 9 Stars and 9 Palaces - How to relate your Personal Stars to Luo Shu - How to derive your three Personal Stars from your Year, Month and Day of Birth - You Personal journey Stars through the Luo Shu Palaces - Significance of Opposite Stars - Positive – Negative Luo Shu Palaces - How to Relate your Personal Stars to Luo Shu - Changing your Personal Magnetism - The Five Dynamics Transformation - Nine Star Ki Divination - Directions and Location - How to Interpret Nine Star Ki Events - General Attributes for Palaces and Stars - 9 Stars and Buildings - Your Stars in the 9 Palaces - Forecasting of New Events - Personal example Fate Reading - Annual Forecasting - Nine Stars, Earthly Branches and Directionology - Tai Sui - Sui Po and San Sha.
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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
Zustand
Supabase
react-navigation
@supabase/supabase-js
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.
