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
Bowls - Tibetan Singing Bowls
Swirl your fingers slowly around the edges of the bowls to create beautiful meditative harmonic tones
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
1,159 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 Bowls - Tibetan Singing Bowls: map the core Music 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
Offer a wider range of sounds in the free version or as part of a subscription.
Assumption to check: Limited sound variety in free version
Validate with people who use this workflow before building.
Hypothesis 2
Implement social sharing options to let users share their favorite sounds.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Include onboarding tutorials or tips for first-time users.
Assumption to check: Lack of user guidance for new users
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to download sounds for offline listening.
Assumption to check: Absence of offline playback
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
Swirl your fingers slowly around the edges of the bowls to create beautiful meditative harmonic tones. Tap the bowls, gongs, bells, and tingsha cymbals to add depth and variety to your music. NEW Feature!: Record and save your masterpieces and play them back while relaxing or meditating to bring peace to your mind, body and soul. Use this app for meditation, music, relaxation and personal well-being. Use the healing sounds of Bowls to... - Relax - Make music - Reduce stress - Boost your creativity - Prepare for meditation - Escape from a noisy situation - Focus before, during or after yoga Tips - Swirl your finger SLOWLY on the rim of each bowl to get it to sing - Bowls is best experienced with earbuds or headphones - Use low volume for ambience or higher volume to focus your meditation - Connect to a stereo system to play your music in a group environment "Your body is a temple, but it occasionally needs a tune-up." ** "Top 5 iPhone apps for chilling out" - LA Times ** "A meditative masterpiece" - The Boston Globe ** Selected by Apple as "App Store Essential for Rest and Relaxation" Thank you for your purchase! All of us on the Oceanhouse Media team appreciate your support. Visit us at www.omapp.com ******** Bowl images provided by Silver Sky Imports (www.silverskyimports.com) Music and sounds provided by Deep Prakash Deoja (www.deepsoundmeditation.com) ********
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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
Zustand
react-navigation
expo-av
axios
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.
