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
Holyrics
Consult Holyrics software data for PC and control the presentation of Bible lyrics and verses.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.7
7 ratings · Top 50%
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 Holyrics: map the core Utilities 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 a user-generated lyrics contribution feature.
Assumption to check: Limited song availability and lyrics accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Offer a more flexible subscription model.
Assumption to check: In-app purchase limitations after 10 uses
Validate with people who use this workflow before building.
Hypothesis 3
Enhance the UI with animations and better visual design.
Assumption to check: Basic UI and user experience
Validate with people who use this workflow before building.
Hypothesis 4
Add offline mode for saved lyrics.
Assumption to check: High dependency on internet connection
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
Consult Holyrics software data for PC and control the presentation of Bible lyrics and verses. Slide projection. Playlist ● List with all registered songs. - Search specific terms to find the song you want; - View the song lyrics, annotation and history; - Start a presentation on your computer via your smartphone. Playlist ● Playlist selected in the Holyrics program on the computer. Songs Played ● List of the most played songs in the informed period and their respective dates. - You can filter the list by selecting the specific days of the week you want. Schedule ● Schedule of members. Services and Events ● List of all services and events. - View the songs and scheduled members. Members ● List of all members registered in the program. Bible Remote Control ● Screen to start and control the presentation of Bible verses on the computer. - Access the last selected verses by the history button. Receive Transmission ● Screen to mirror the slide displayed on the computer or receive lyrics transmitted by another smartphone. Updates - Update smartphone data through the computer. - Or via the internet. (You need to create an account through the Holyrics program and upload the files) ------------------------------------------------- Holyrics - Software Slide show and Bible verses. Agility, practicality and organization in the presentation of lyrics and verses. Solution for projecting slides, lyrics and Bible verses.
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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expo-av
BUILD KIT DIFFICULTY
Advanced
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.
