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
Schumann Resonance
We are the OG Schumann Resonances App — since 2019
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
240 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.
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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 included17 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 Schumann Resonance: 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
Offer adjustable playback quality settings.
Assumption to check: Limited audio quality options
Validate with people who use this workflow before building.
Hypothesis 2
Integrate sharing experiences or challenges.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to save favorite frequencies.
Assumption to check: No user customization options
Validate with people who use this workflow before building.
Hypothesis 4
Enhance visual design and interactions.
Assumption to check: Basic UI/UX design
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
We are the OG Schumann Resonances App — since 2019 A quick snapshot of what is going on with the Earth's heartbeat — the Schumann Resonance! Highlighted Features in this version: • New dedicated Journal page with your reported Symptoms, and a Combo of Tomsk & Cumiana Charts, in one view!* • Share Symptoms with the Community! Automatically logged to the Journal • Tomsk 2, 3, 4, 7, and 14 day versions! • available Nowhere else • Tomsk Chart Overlays with timezone comparison • Calendar date picker for past Tomsk charts* • available Nowhere else • Forum discussion with fellow Schumann Resonance followers!* • Dedicated Learn screen • Dark/Light mode + customizable UI • Planetary K-index (Kp), and Solar coronagraph images & videos Screens • iOS widget with live spectrogram & key values • All major VLF stations: Cumiana, Nicolosi, Virgo, SOS Enattos, Landes • Binaural beats added to the Unique and innovative Live Audio Player! (Plays Schumann Harmonics, Solfeggio, Nogier Healing, Chakra, Angel, and Planetary Frequencies)* • Quick-glance row for all current Schumann data Listen to the Current Fundamental Frequency with or without Binaural beats — plus Nogier Healing, Chakra, Planetary, Angel, and Solfeggio frequencies* Interact with 32 days of live Tomsk Data — Spectrogram, Amplitude (Power), Frequency, and Q-Factor all on one dynamic chart* This is a simple but powerful App that we've worked hard to make great, for both the Beginner and the Practitioner: • Real-time view of the Schumann Resonance in one convenient place • Pinch to zoom, drag, save and share all charts (including the all-in-one view) • Historical images: Spectrogram, Amplitude, Frequencies, Q-factor, Electromagnetic, and all Cumiana charts* See the Spike percentage when the Resonance is spiking! *** FREE push notifications — get alerted for Spikes, Amplitude, or both *** • the latter available Nowhere else Some Additional Features: • Global Consciousness Project (GCP 2.0) dot, now with 48-hour History • Tomsk "Blackouts" are displayed at the top of the Tomsk screen. Additional Notifications are available as a Bonus to Subscribers* • Choose what the Amplitude number shows: Current, Today's Peak, or Yesterday's Peak • Helpful tooltips to learn how to read the charts Also check out our Community listings, and find Awesome Schumann Affiliates to follow and connect! This is an essential tool for following, practicing, learning about, and participating in the Collective Consciousness, Ascension, Meditation, and staying connected to Earth's energy Languages: Content, in: English, Czech, German, Spanish, French, Italian, Japanese, Korean, Dannish, Norwegian, Polish, Portuguese, Russian, Swedish, Chinese, Turkish, Dutch Permissions note: Limited photo access may be requested, exclusively for Forum subscriber profiles, and is not used in any other way. *Some features are Subscriber Bonuses. They are fully functional, but trials. Calendar and Journal are limited to 5 days, and the Player to 5 seconds. The Forum is a Subscribers only Bonus. A Subscription is otherwise Not required. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://schumann-resonance.org/privacy-policy/
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
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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.
