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
iBaud
The Bio-Acoustical Utilization Device (BAUD) is a device that creates sonic waves that coincide with brain frequencies measured by an electroencephalogram (EEG)
$99.99 · In-app purchases
PRICE
$99.99
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 iBaud: 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
Focus on simplicity and only track hydration.
Assumption to check: Users often feel overwhelmed by tracking too many metrics.
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate customizable reminders for drink intake.
Assumption to check: Many apps lack reminders for hydration.
Validate with people who use this workflow before building.
Hypothesis 3
Provide a quick log feature with common drink types.
Assumption to check: Difficulty in logging drinks quickly.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their drink types and goals.
Assumption to check: Limited personalization options.
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 Bio-Acoustical Utilization Device (BAUD) is a device that creates sonic waves that coincide with brain frequencies measured by an electroencephalogram (EEG). By integrating the BAUD as a stimulant with other therapies, such as neurotherapy or music therapy, the individual can better grasp the significance of regulating their brain waves as well as other psychophysiological dimensions, such as relaxation and indices of mood. The Music frequencies can increase or decrease a person's mood levels; drum rhythms also have been documented as having an affect. All of the body can be influenced by external frequencies, such as the frequency waves measured by the electrocardiogram (EKG) or sonogram energy waves for the heart, electromyogram and the (EMG) energetic waves from the surface muscles. The iBAUD is the embodiment of the BAUD on iPhone/iPad. The iBAUD is a designated relaxation biofeedback modality which has been shown to significantly relieve individuals from the symptoms of stress and trauma by means of sound frequencies.
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
axios
victory-native
@react-navigation/native
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.
