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
Tefilla Pack - אוצר תפילות
The Tefilla Pack is an essential Jewish anthology of all the most important and effective Tefillos and Segulos
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
25 ratings · Top 30%
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 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Tefilla Pack - אוצר תפילות: 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
Allow users to customize prayers with notes or tags.
Assumption to check: Limited prayer customization options
Validate with people who use this workflow before building.
Hypothesis 2
Implement better filtering and sorting options.
Assumption to check: Difficult navigation in large collections
Validate with people who use this workflow before building.
Hypothesis 3
Add sharing capabilities for users to share prayers.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Ensure audio support for all prayers in the app.
Assumption to check: Lack of audio support for some prayers
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 Tefilla Pack is an essential Jewish anthology of all the most important and effective Tefillos and Segulos. Whether you are saying Perek Shira or Shir HaShirim for 40 days, davening for success in your parnasa, or want to say Bircas Hamazon, this Rusty Brick app is for you. With adaptations for Nusach Ashkenaz, Sefard, or Edot HaMizrach, the Tefilla Pack will be there with you at all times. Tefilla Pack Includes: * Perek Shira * Shir HaShirim * Nishmas * Iggeres HaRamban * Tefillas HaShlah * Parshas HaMann * Parshas HaKetores * Tefilla for Parnasa * Segula for Finding Lost Object * Birkas HaMazon * Birkas Me'ayn Shalosh * Borei Nefashos * Tefillas Haderech * Tefilla against Ayin Hora * Tefillah for Motzei Shabbos * Tikkun HaKlali * Before/After Learning Prayer * Tu B'Shvat * Tikun Chatzos * Physician's Prayer * At Holy Sites: Kotel Maaravi, Kever Rachel, Me'aras HaMachpela, Kever Rashbi & Reb Meir Baal Haness All texts are in Hebrew. ************************************** קובץ התפילות הינו לקט יהודי הכרחי של התפילות החשובות והמועילות לכל יהודי. לא משנה אם אתה אומר את פרק שירה או שיר השירים ל40 יום, מתפלל להצלחה, פרנסה או מעוניין לומר ברכת המזון, אפלקציה זו היא בשבילכם. מותאם לנוסח אשכנז, ספרד ועדות מזרח, קובץ תפילות זה ילווה אתכם בכל עת. קובץ התפילות כולל: * פרק שירה * שיר השירים * נשמת * אגרת הרמב"ן * תפילת השל"ה * פרשת המן * פרשת הקטורת * תפילה לפרנסה * סגולה למציאת חפצים אבודים * ברכת המזון * ברכת מעין שלש * בורא נפשות * תפילת הדרך * תפילה נגד עין הרע * תפילה למוצאי שבת * תיקון הכללי * תפילת הבית מדרש * ט"ו בשבט * תיקון חצות * תפילת הרופא * תפילות במקומות הקדושים: כותל המערבי, קבר רחל אמינו, מערת המכפלה, קבר רבי שמעון בר יוחאי, קבר רבי מאיר בעל הנס
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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
Supabase
react-navigation
expo-av
react-native-paper
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.
