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
Muslim App: Azan, Qibla, Quran
Join millions who rely on Muslim App, formerly Muslim Assistant, for accurate prayer times, Qibla direction, the Quran, and daily azkar.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
88,234 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 included18 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 Muslim App: Azan, Qibla, Quran: 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
Provide extensive customization options for notifications, including time adjustments and specific prayer alerts.
Assumption to check: Limited customization for prayer times notification settings
Validate with people who use this workflow before building.
Hypothesis 2
Enable offline access to prayer times and Qibla direction features.
Assumption to check: Lack of offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the settings layout and allow users to hide/show options.
Assumption to check: Cluttered UI with too many settings
Validate with people who use this workflow before building.
Hypothesis 4
Improve location services for better accuracy in finding Qibla direction.
Assumption to check: Inconsistent location accuracy
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
Join millions who rely on Muslim App, formerly Muslim Assistant, for accurate prayer times, Qibla direction, the Quran, and daily azkar. Why Muslim App? 70M+ Users: Trusted by millions of brothers and sisters for daily ibadah. Loved for Clarity & Precision: Built to be simple, beautiful, and easy to use. Privacy as an Amanah: Your data is a trust. We treat it with care and prioritize your privacy and security. Key Features - Prayer Times (Verified + Precise): Truly location-based Adhan times from verified authorities, with madhhab and latitude adjustments when needed. Times update automatically when you travel across time zones. - Adhan Notifications: A maqam-based default Adhan, plus options like the one commonly heard in your country. Customize sounds by time of day, choose an alarm sound if you prefer, or vibration-only for work and meetings. - Prayer Tracker: Mark your daily salah, follow your progress, and stay consistent in your ibadah. - Apple Watch Support: Track prayer times, find the Qibla direction, and count your dhikr with the digital tasbih — all from your watch. - Namaz Times Widgets: Beautifully designed widgets that show your upcoming prayers at a glance on your home and lock screens. - Qibla Finder: Map + compass mode to find the Kaaba direction, even when offline — ideal for travel. - AI Imam: An Islamic companion for learning, everyday guidance, and support — always with respect, care, and verified sources. - Al Quran Kareem: Read in English and 40+ other languages with tafsir and transliteration. Listen to famous reciters with a background player (screen locked / app in background). Download recitations to read and listen offline. - Quran Widgets: A new verse each day on your home and lock screens, keeping the words of the Quran close to your heart. - Khatam Tracker: Plan your Quran completion and stay on track. - Azkar: Morning and evening azkar, and more — Arabic, translation, pronunciation, explanation, virtue, and audio. - Digital Tasbih: Track your dhikr counts and cycles easily. - Asma'ul Husna: Learn the 99 Names with a refreshed, educational design. - Jumu'ah (Friday): Starting Thursday evening — reminders for dhikr and salawat to welcome Friday with more remembrance. - Nearby Mosques: Find masjids near you on the map. - Hijri Calendar: Track Ramadan, Laylat al-Qadr, Eid al-Fitr, Eid al-Adha, and more. - Ramadan Calendar: Imsakiyah with suhoor and iftar times, Ramadan du'as, a Ramadan plan, plus widgets & Live Activities. May Allah SWT accept our namaz, our duas, and every sincere effort. Follow us: https://www.facebook.com/muslimappofficial https://www.instagram.com/muslimapp_official https://www.tiktok.com/@muslimapp_official https://www.youtube.com/@muslimapp_official Privacy & Terms: https://muslimapp.com/privacy
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
React Navigation
AsyncStorage
Expo Location
React Native Vector Icons
BUILD KIT DIFFICULTY
Intermediate
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.
