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
Al Muslim (Sahih Muslim)
Sahih Muslim, one of the six most authentic hadith books (Kutub al-Sittah) now available
$0.99
PRICE
$0.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
24 ratings · Top 15%
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 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Al Muslim (Sahih Muslim): 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
Implement advanced filters and suggestions while typing.
Assumption to check: Limited search functionality
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to download favorite hadith for offline reading.
Assumption to check: Lack of offline access
Validate with people who use this workflow before building.
Hypothesis 3
Provide options to change font size and theme.
Assumption to check: No user customization options
Validate with people who use this workflow before building.
Hypothesis 4
Add clear labels and icons for better navigation.
Assumption to check: Navigation can be 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
Sahih Muslim, one of the six most authentic hadith books (Kutub al-Sittah) now available. Sahih Muslim was collected by Muslim ibn al-Hajjaj (204 AH to 261 AH). He traveled widely and gathered 300,000 hadith of which approximately 4,000 were extracted for inclusion into his collection based on stringent acceptance criteria. Sahih Muslim is divided into 43 books, containing a total of 7190 narrations. This app aims in providing you with the entire collection of Sahih Muslim in an easy to navigate, read and save the specific hadith pertaining to your interest. Bookmark the important and relevant Hadith you were looking for, so that you can easily come back to it later. Don't just keep this knowledge to your self but share it with your friends and family via Facebook or just send them an email. FEATURES ------------ * Easy Navigation through the topics * Very fast scrolling to the specific Hadeeth * Add Bookmarks * Post to Facebook * Email option * Elegant Themes
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
Expo
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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.
