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.
Environments is a historic catalog of long form field recordings created for the way you live
$2.99 · 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 Environments: 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 audio environments compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Subscription model may confuse users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of offline access to environments
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.
Environments is a historic catalog of long form field recordings created for the way you live. Whether you need to work, meditate, sleep, or any other use, Environments is the only ambient sound app based on extended recordings created in the 1960s and 70s on analog tape. Environments began as an unprecedented series of vinyl records, garnering widespread acclaim and selling millions of units. Now Environments steps into the mobile age as an invaluable and unique sonic tool for the way YOU live. • No internet connection required — all recordings are part of the app. • 23 fully remastered long-form analog recordings, most 30 minutes or more. Not short loops, not white noise — Environments live and breathe like nature itself. • Simple, intuitive navigation. Unobtrusive, ad-free look and feel evokes a simpler, better time. • Put your favorite environment on infinite loop, or build your own playlist of favorites. • Blocks distractions, increases focus and mindfulness, reduces stress, helpful with tinnitus and fussy babies. • Sounds include ocean waves, birdsongs and dawn chorus, chimes, "be-in", thunderstorms, gentle rain, heartbeat, wind in trees, wordless choir, summer cornfield, creaky sailboat, country stream, country meadow, blizzard, and many more. • Features informative biography of Environments creator Irv Teibel, along with concise informational screens on individual recordings. • The only app ever shortlisted for the best historic album Grammy award. • A co-creation of Syntonic Research, Inc and the Grammy-nominated reissue label Numero Group. • "It's intuitive, beautifully minimalist, and a perfect evolution of the original work." — Boing Boing • "A remarkably creative way to reintroduce Teibel’s work and ideas… something great and sublime." — The New Yorker • "Enjoy nature exactly the way God intended it, as an App." — Vice • "The music of the future isn't music." — Irv Teibel
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.