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
Ananda - Binaural Beats
Ananda mixes ambient soundscapes with gradually changing binaural beats
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
649 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Ananda - Binaural Beats: map the core Lifestyle 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 selection of meditation sessions across different themes.
Assumption to check: Limited meditation variety
Validate with people who use this workflow before building.
Hypothesis 2
Provide more free content or a freemium model to attract users.
Assumption to check: Subscription-only premium content
Validate with people who use this workflow before building.
Hypothesis 3
Implement a feedback system to gather user suggestions for improvement.
Assumption to check: Inadequate user feedback options
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing capabilities and community challenges to enhance user engagement.
Assumption to check: No social 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
Ananda mixes ambient soundscapes with gradually changing binaural beats. It started as an independent passion project, built around the sounds and listening sessions I personally enjoy. Explore binaural beat programs Choose from 13 binaural beat programs for different listening moments throughout the day. Each program uses gradually changing binaural beats as part of the audio mix. Short descriptions explain how the beats change over time. Discover a varied sound mix Each session combines nature sounds, chants, and sound effects with binaural beats. Sounds are selected automatically so the mix can vary from one session to another. Start a sound session Use Ananda in a safe setting and choose a sound program that fits your listening preferences. Main Features • 14 sound programs, including 13 binaural beat programs and one ambient-only program: • Reflective Listening • Focus • Attention • Study • Creativity • Momentum • Extended Meditation • Dreamscape • Slow Drift • Relaxation • Quiet Rest • Short Rest • Morning • Short descriptions for each program • Nature and ambient sounds • Choose and customize the sounds you prefer • A varied sound mix across sessions • Simple, minimalist design • General-interest information on frequency ranges and binaural beats Disclaimer: Ananda is not a medical app. It is a recreational listening app with ambient sounds and binaural beats, for entertainment and relaxation only. It does not provide medical advice, diagnosis, or treatment, and it is not intended to diagnose, treat, cure, or prevent any condition. It is not a substitute for therapy, treatment, medication, or professional care. Effects are not guaranteed and individual experiences may vary. Do not use this app while driving, operating machinery, or in any situation where reduced attention could create a safety risk. Stop using the app if you experience discomfort. If you have medical concerns, consult a qualified healthcare professional. Download Ananda and explore varied ambient soundscapes and binaural beat programs.
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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
Supabase
Zustand
react-native-reanimated
@supabase/supabase-js
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.
