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.
Your coffee shop is always open.
$0.99 · 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 Ambient Cafe — Focus & Sleep: map the core Productivity 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 in free version
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No customizable sound mixing options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase prompts can be intrusive
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of sleep timer options
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.
Your coffee shop is always open. Ambient Cafe turns your iPhone into an immersive sound environment — a warm cafe, steady rain, crashing waves, or the hum of a moving train. Wherever you are, your perfect focus or sleep sound is one tap away. ------------------------------------------- WHY PEOPLE LOVE IT ------------------------------------------- The science is clear: the right background sound improves focus, creativity, and sleep. Ambient Cafe gives you 8 hand-crafted environments so you can find the sound that works for you — not a subscription, not a streaming playlist. Just ambient sound, always available, always yours. ------------------------------------------- 8 ENVIRONMENTS ------------------------------------------- Coffee House The warm hum of an espresso bar. The classic focus environment. Rain Steady, immersive rainfall. Block out everything else. Ocean Waves Coastal calm, wherever you are. Perfect for unwinding and sleep. Train Rhythmic motion sounds. Start your train of thought. Field Crickets, wind, and open air. Step outside without leaving. White Noise Pure, consistent sound masking. For sleep, focus, and tinnitus relief. Fountain Gentle flowing water. Calm your mind in seconds. Children Playful background energy. Fuel creative thinking. ------------------------------------------- FEATURES BUILT FOR YOU ------------------------------------------- AUTO-DUCK FOR MUSIC Playing Spotify, Apple Music, or any podcast? Turn on Auto-Duck and Ambient Cafe automatically lowers itself when your music plays — then brings itself back up when it pauses. No manual adjustment. It just works. 100% OFFLINE Every sound is stored on your device. No internet required. No buffering. Works on a plane, in the basement, at 3am with no Wi-Fi. Always. PLAYS IN THE BACKGROUND Start a sound and lock your screen. Ambient Cafe keeps playing quietly while you use other apps, read, or work. Control it from your lock screen or earphone remote. NO ADS. EVER. No banners. No pop-ups. No tracking. Ambient Cafe is a clean, distraction-free space — because that is exactly the point of the app. INDEPENDENT VOLUME CONTROL Set the ambient sound level separately from your device volume. Layer it perfectly under your music or at just the right level for sleep. WORKS WITH ANY MUSIC APP Spotify, Apple Music, YouTube Music, podcasts — Ambient Cafe layers underneath any audio you are playing.
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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.