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.
EōN is a new relationship to "recorded" music as we have always known it by immersing the listener in an endless sound (and visual) experience, like an album whose duration would have no fixed limit.
$8.99 · 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 EōN by Jean-Michel Jarre: 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 offline functionality for soundscapes
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Navigation can be confusing for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited social sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Repetitive soundscape suggestions
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.
EōN is a new relationship to "recorded" music as we have always known it by immersing the listener in an endless sound (and visual) experience, like an album whose duration would have no fixed limit. EōN produces an infinite music, in constant evolution, abundant in variations, composed by electronic music pioneer Jean-Michel Jarre, accompanied by a constant progression of organic visual elements. Once the EōN app is activated, you will listen and watch a new unlimited music experience constantly unfold, designed to be absolutely unique for each listener, always different each time the app is launched. You can enjoy a different journey everytime, listening as many times and as long as you want, the only limit being your device’s battery! In addition, once downloaded, EōN is fully autonomous requiring no internet connection. Thus it is possible to launch the app anywhere and at any time. JEAN-MICHEL JARRE ABOUT EōN: "-Eon- the name of an ancient Greek God associated with unlimited time and eternity. I named this project EōN as it symbolizes exactly what it is: an infinite musical and visual creation, which offers to everyone a unique experience, which will never happen again: on each device and each activation of the application EōN, you will hear and see an ever-evolving orchestration of music and visuals. EōN is an endless organic work, never repetitive, that will live and grow indefinitely at your fingertip. Like in life, every moment lived in EōN will never happen again. Personally, I truly feel that EōN is probably one of my most exciting creative projects since Oxygene. I always wanted to create a specific music for each listener, able to evolve constantly in terms of rhythms, tones, tempo, melodies and textures. Here it is. EōN is conceived and composed as a different journey for everyone, with no end determined. I had a clear idea of the organic, living visuals I wanted to accompany my music, and I was very lucky to spend some time in Tokyo at Sony Computer Science Laboratories, Inc. (Sony CSL), where I discovered Alexis André and his singular visual world. Sony CSL with Alexis have conceived and developed an algorithm generating an endless flow of ever-evolving graphics, which, like the music, are infinite and never repeatitive. The algorithm and audio engine that orchestrates the music of the EōN app have been engineered by Alexis Zbik & Vianney Apreleff from BLEASS after defining the rules of the system together. " CREDITS Conceived and composed by Jean-Michel Jarre Digital Graphics by Alexis André of Sony Computer Science Laboratories, Inc. (Sony CSL) Music algorithms and audio engine powered by BLEASS Produced by Aero Productions Terms of use: http://jeanmicheljarre.com/eon/terms-of-use
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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.