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
Tehilim תהלים Tehillim Psalms
Take your Tehilim/Psalms with you at all times
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
103 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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What's included16 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 Tehilim תהלים Tehillim Psalms: 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 full offline support for reading without internet.
Assumption to check: Limited offline access to Psalms
Validate with people who use this workflow before building.
Hypothesis 2
Add filtering options by keywords, themes, or categories.
Assumption to check: Search functionality lacks advanced filters
Validate with people who use this workflow before building.
Hypothesis 3
Include audio for each Psalm to enhance user experience.
Assumption to check: No audio support for all Psalms
Validate with people who use this workflow before building.
Hypothesis 4
Implement sharing features for individual verses or Psalms.
Assumption to check: No sharing options for specific verses
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
Take your Tehilim/Psalms with you at all times. You have options for reading by chapter, day of month or day of week. The text is presented in both English and Hebrew and provides settings for showing one or the other or BOTH! People put Tehilim in their cars, why not put it in your iPhone/iPod Touch for good luck? Features: - By Chapter/Perek, By Day of Month, By Day of Week - English and Hebrew Texts - Easy to make up for previous days portion - Follows both Jewish and Christian schedules - Build by name for cemetery - No need to flip through pages, you get what you need - No Internet Access needed ******************************************************* קחו את ספר התהילים עמכם בכל עת ולכל מקום. ישנם אפרויות לקריאה לפי פרק, יום בחודש או יום בשבוע. אנשים נוהגים לשים את ספר התהילים אצלם ברכב, אז מדוע לא לשים אותו על ה- iphone/ipod Touch להצלחה ומזל! מאפיינים: * לפי פרק, לפי יום בחודש, לפי יום בשבוע * טקסט עברי/אנגלי * השלמת יום קודם בקלות * סמן בסימנייה את מקומכם * כולל את כל התפילות המיוחסות/קשורות * אין צורך לדפדף בין הדפים, אתם מגיעים לאן שצריך * אין צורך בחיבור לאינטרנט בקרוב: * תהילים לאירועים וזמנים מיוחדים * קובץ תפילות נוספות
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
Supabase
Zustand
expo-av
react-navigation
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.
