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
Tinsimu Ta Mhalamhala Hymns
This essential app puts the complete collection of beloved hymns and spiritual songs right at your fingertips
$1.79 · In-app purchases
PRICE
$1.79
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 ratings · Top 5%
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 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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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 Tinsimu Ta Mhalamhala Hymns: 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 advanced filtering and sorting options.
Assumption to check: Limited search functionality
Validate with people who use this workflow before building.
Hypothesis 2
Add local storage for offline hymn access.
Assumption to check: No offline access
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize text size and themes.
Assumption to check: Lack of user customization
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social media sharing features.
Assumption to check: No social sharing options
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
This essential app puts the complete collection of beloved hymns and spiritual songs right at your fingertips. Whether you're at home, in church, or on the go, you'll have instant, offline access to the songs that uplift your spirit and deepen your faith. Key Features You'll Love: Complete Collection: Access all the cherished hymns from the Tinsimu Ta Mhalamhala Ta Evangeli songbook. Lightning-Fast Search: Easily find any song by title, number, or keywords in the lyrics. Never fumble through pages again! Offline Access: Read all lyrics and song numbers without needing an internet connection. Perfect for areas with poor reception. User-Friendly Interface: A clean, intuitive design makes it simple to navigate and read the lyrics comfortably. Favorites & Sharing: Bookmark your most-loved songs and easily share them with friends and family. Deepen your connection to God through music. Download Tinsimu Ta Mhalamhala Ta Evangeli today and carry the songs of faith with you everywhere!
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
Axios
React Navigation
AsyncStorage
shadcn/ui
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.
