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.
The Isochronic Tone Generator does just what it says: You can create any Isochronic Tone (between 0.01 and 50Hz) with a carrier between 50 and 999Hz
$5.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Isochronic: 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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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
Assumption to check: Limited session variety and genres
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent audio playback quality
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features for sharing sessions
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline access for downloaded sessions
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The Isochronic Tone Generator does just what it says: You can create any Isochronic Tone (between 0.01 and 50Hz) with a carrier between 50 and 999Hz. You can also mix the tone with your own music, set the wave volume in the mix, set a timer (up to 59 mins), program target isochronic frequencies for your brain entrainment sessions, use presets to start easy entrainment sessions and memory slots to put your favorite tones. As simple as it gets... Enjoy! FEATURES: ======= * Variable carrier tone * Variable isochronic tone * Fine tune for carrier, isochronic and target frequencies * Mix the tone with your own music * Wave volume for better mixing * Timer (up to 59 minutes) * Entrainment sessions: Just set the target frequency using the black indicator below the isochronic tone. * Presets (sleep, relax, awake and meditate) * Memory slots: for having your favorite tones one tap away ------------------------ Isochronic tones are regular beats of a single tone used for brainwave entrainment. Similar to monaural beats, the interference pattern that produces the beat is outside the brain so headphones are not required for entrainment to be effective. They differ from monaural beats, which are constant sine wave pulses rather than entirely separate pulses of a single tone. As the contrast between noise and silence is more pronounced than the constant pulses of monaural beats, the stimulus is stronger and has a greater effect on brain entrainment (taken from: http://www.mindalive.com/articleeleven.htm) ------------------------- Isochronic beats are not intended to treat or cure any disease, nor should any of the subject matter presented on this app or website be taken as medical advice. Please consult your doctor if you have a medical condition. The products on this website have not been evaluated by the Food and Drug Administration (FDA). People with epilepsy should not use mind entrainment products without the approval of an appropriate medical physician. However rare, there is a risk of seizure associated with individuals who are predisposed to seizures. Consult your doctor directly if you have any questions or concerns regarding Isochronic beat technology's effect on epilepsy. Do not drive a car or operate dangerous machinery while listening to this product. This technology can produce hyper-relaxed states that can interfere with your ability to react as needed while driving or operating machinery. There are no known contraindications to medication or chemical therapies, but if in doubt, consult your doctor. If you have any questions consult the doctor who provides your treatment.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.