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
Saint of the Day Stories
All ages can learn about 365 lives of the Saints, one for everyday! Mark your favourites, and email to friends.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
58 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 included17 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 Saint of the Day Stories: 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
Incorporate quizzes or reflections related to each saint's story.
Assumption to check: Limited user engagement due to lack of interactivity
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced search and filtering options.
Assumption to check: Difficulty finding specific saints
Validate with people who use this workflow before building.
Hypothesis 3
Add sharing options for stories to social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Add daily notifications for new stories or features.
Assumption to check: Static content with no 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
All ages can learn about 365 lives of the Saints, one for everyday! Mark your favourites, and email to friends. Enjoy sharing the lives of the 365 Saints knowing that it was written with little ears in mind! Increase your own faith and knowledge of the 'pillars of the church'. Saints can inspire all ages, young and old, and you to live more enriched lives. You can be reminded daily, weekly, or bi-weekly, for the lives of the saints. • In a language that any age can understand, and appropriate for any age, we have compiled a Saint for everyday of the year. Descriptions can be shared and posted to Facebook. You can print a full page with any airprint enabled printer, or email it to yourself or family. For Parents: • Best of all it is designed with littles in mind. All of the images can be printed, colored with real crayons or markers and shared! • Email any any contact on your device. Post a reminder to your family and friends of the Saint of the Day, and colour and print so that you can remember today’s Saint of the Day. • Brush up on your own knowledge, and learn about hundreds of amazing faith filled people who: loved theatre (Saint John Paul II), gave up crazy wealth and jewels and was married to a King (St. Matilda), the real story of St. John of God. Enjoy daily Saints designed for all ages. Living a Catholic, Christian life and following Jesus is a challenge. This app will help you, or your family every day, every month of the year, helping you and especially your family growing in your prayer and meditation. Many patron saints, and many more are included. Each and every Saint has history, a coloring page and a short prayer or meditation. Kids love it, parents love it, and everyone learns more about the Saints! • Worried about kids using your iPad or iPhone or iPod, print some Saints for them to enjoy the good old fashioned way. Worry free!
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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
axios
react-native-share
expo-router
Zustand
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.
