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
Biohack Harmonic
Unlock the Healing Power of Sound
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included16 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 Biohack Harmonic: map the core Health & Fitness 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 recommendation engine based on user preferences.
Assumption to check: Limited audio selection and no personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 2
Add social sharing and challenges to promote usage.
Assumption to check: Inadequate user engagement and retention features
Validate with people who use this workflow before building.
Hypothesis 3
Ensure high-quality audio streams and offline capabilities.
Assumption to check: Poor audio quality and lack of offline access
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create custom playlists and adjust track settings.
Assumption to check: Lack of customization options for audio tracks
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
Unlock the Healing Power of Sound. Discover Your Unique Harmonic Blueprint. Biohack Harmonic is a next-generation sound wellness app designed to map your personal frequency signature and guide you through immersive audio-visual journeys. Using your birth data and daily inputs, the app delivers custom-tailored protocols for deep rest, mental clarity, emotional balance, and spiritual connection. Sonic Healing Meets Smart Technology Explore a powerful library of over 140+ sound protocols including: Brainwave Entrainment (Delta, Theta, Alpha, Beta, Gamma) Solfeggio Frequencies (174 Hz – 963 Hz) Binaural & Isochronic Tones Elemental Frequencies mapped to the periodic table Planetary & Ascension Harmonics Harmonic Elements: 81 frequencies elements of the periodic table Kabbalistic Harmonics frequencies mapped to the Tree of Life and the 22 letters of the Hebrew alphabet Star-coded sessions from Orion, Sirius, Lemuria & more Acoustic Soundscapes like White, Pink, and Brown Noise, Gentle Rain and Ocean Waves. Rife Bio-Resonance inspired by bio-resonance principles, targeting general vitality, pain relief, inflammation etc. Your Personal Harmonic Map Generate a custom map based on your birthdate through the Codex Universalis, revealing: Core Frequency Blueprint Yearly, Monthly & Daily Harmonic Modulation Archetypal Soundboard & 24-point Harmonic Wheel Built-in Wellness Tools Visual breathing guides (Box Breathing, 4-7-8, Coherent) Activity tracking (sleep, meditation, mood, more) Custom protocols for focus, healing, energy, detox, and sleep 8D spatial audio (Pro) for immersive journeys Creator Studio Design your own frequency sessions with: -Multi-layer tones (up to 3 at once) -Custom step-by-step sequencing Sonic Alchemy Lab for blending elemental tones Track Your Rhythm Daily rings for Mind, Move, and Consistency Weekly heatmaps & habit trends Manual or Apple Health-integrated logging Biohack Harmonic = Sound + Intention + Insight Whether you’re a healer, meditator, or curious explorer, this app becomes your personal sound sanctuary — powered by both ancient codes and modern science. Built by consciousness explorers. Powered by coherence. Join the sound evolution. App will work in off-line mode also.
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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
expo-av
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.
