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.
Discover VariFlute — The Gateway to Audio Modeling
$9.99 · 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 SWAM VariFlute: map the core Music 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 sound variety compared to other music apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Complex setup process for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent sound quality across devices
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community engagement features
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.
Discover VariFlute — The Gateway to Audio Modeling VariFlute is the first instrument of the new Discovery Line by Audio Modeling, designed to open the doors of Physical Modeling to everyone. For the first time, you can explore the depth and beauty of this cutting-edge technology on your iPad or iPhone, with an app that is affordable, intuitive, and inclusive. With VariFlute, the world of flutes expands beyond imagination. From recorders to pan flutes, shakuhachis, bansuris, and even entirely new, never-before-heard instruments — all become possible. By adjusting parameters such as pipe length, diameter, and material, you can sculpt your own unique sound in real time. Why VariFlute? A Gateway to Physical Modeling Experience the same advanced technology behind Audio Modeling’s award-winning SWAM instruments, now made accessible for every musician. Versatility Beyond Samples Unlike static sample libraries, VariFlute responds to your playing in real time. Shape expression, vibrato, dynamics, and articulation with unprecedented realism. Create Your Own Instruments Explore parameters like pipe length, aperture, resonance, and more. Morph one instrument into another and invent entirely new sonic identities. Powered by SWAM Technology Based on decades of research in Physical Modeling and the legacy of Stanford University, VariFlute delivers unmatched playability and realism. Accessibility at 360° Price: VariFlute is reduced only in cost, never in quality. It delivers the same uncompromised sound and playability as Audio Modeling’s flagship instruments. For SWAM Flutes owners, VariFlute is the perfect complementary tool to expand their sonic palette. Ease of Use: A clean, intuitive GUI designed to make Physical Modeling approachable, even for beginners. Inclusion: Fully compatible with screen readers, ensuring that visually impaired musicians can explore, play, and create without barriers. Features at a Glance Standalone app for iPad and iPhone. AUv3 plugin for integration with DAWs and hosts. Perfect for live performance with Camelot Pro, Audio Modeling’s own AUv3 host for stage and studio. Morph between multiple flute families and aerophones. Real-time control of expression, dynamics, and timbre. Adjustable physical parameters: pipe length, diameter, material, aperture, and more. Built-in Ambiente room simulator for 3D spatial realism. Full MIDI support, including keyboards, breath/wind controllers, and MPE devices. Preset management with easy saving, editing, and exporting. Optimized for both beginners and advanced users. The Discovery Line VariFlute is just the beginning. The Discovery Line is Audio Modeling’s new family of instruments designed to democratize Physical Modeling. These are not simplified toys, but true instruments powered by the same SWAM engine used by professionals worldwide — now made accessible to all. VariFlute is not just an app. It is an invitation to discover, experiment, and create. Step into the future of sound with Audio Modeling — and let music truly become limitless.
Written user reviews are not shown here. Check current App Store reviews >
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.