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
Santa Biblia Reina: Devocional
The Biblia RV 1909 app allows users to listen to rare and original texts from the Reina-Valera 1909 Bible offline
$49.99 · In-app purchases
PRICE
$49.99
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 included15 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 Santa Biblia Reina: Devocional: map the core Books 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
Enhance filtering and sorting options for devotionals.
Assumption to check: Limited content discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline caching of devotionals and Bible content.
Assumption to check: No offline access
Validate with people who use this workflow before building.
Hypothesis 3
Clearly outline subscription tiers and benefits upfront.
Assumption to check: Subscription confusion
Validate with people who use this workflow before building.
Hypothesis 4
Add options to share devotionals and Bible verses on social media.
Assumption to check: Lack of social sharing features
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 Biblia RV 1909 app allows users to listen to rare and original texts from the Reina-Valera 1909 Bible offline. These recordings come directly from Vatican archives, providing access to authentic historical documents. The app does not require Internet access and does not collect personal data, ensuring complete privacy. Use it to listen to biblical texts anytime and anywhere, with no network connection. Key features • Verse of the Day and daily devotional (brief and clear). • Exact, full-text search across the Bible with match counts. • Instant comparison of a verse across all available translations. Demo mode • In the demo mode, only the first book of the Bible is available. For full access, we recommend a monthly subscription. Subscription information • Payment will be charged to your Apple ID account at confirmation of purchase. • The subscription renews automatically unless canceled at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage and cancel your subscription in your Account Settings on the App Store. Privacy Policy: https://sites.google.com/view/swifthelpapp/кодексы End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
React Navigation
Zustand
BUILD KIT DIFFICULTY
Intermediate
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.
