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.
App Overview
Color Sleep
Elevate your sleep, energize your day, and unlock your full potential.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
78 ratings · Top 5%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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.
JavaScript is required to complete mailbox verification.
Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Color Sleep: 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.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Include a larger library of ambient sounds and user-uploaded sounds.
Assumption to check: Limited sound selection compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a recommendation algorithm based on user preferences and sleep patterns.
Assumption to check: No personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 3
Add detailed sleep tracking analytics and insights.
Assumption to check: Inadequate sleep tracking features
Validate with people who use this workflow before building.
Hypothesis 4
Provide more value in the free tier to retain users.
Assumption to check: Paywall after limited usage
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Elevate your sleep, energize your day, and unlock your full potential. ① Alpha: Relaxation for bedtime serenity ② Delta: Optimal deep sleep experience ③ Beta: Morning awakening and energy ④ Theta: Power napping for rejuvenation ⑤ Gamma: Heightened focus at work ⑥ 432Hz: Blissful study ambiance ⑦ 3.2Hz: Body revitalization and renewal ⑧ 40Hz: Immersive binaural beats experience SleepRevive is your ultimate solution for transforming your sleep experience and unlocking your full potential. With SleepRevive, you can elevate the quality of your sleep, energize your day, and awaken a new level of vitality within you. Imagine drifting off into a serene world of relaxation as SleepRevive envelops you in a soothing embrace of tranquility. With its carefully crafted audio programs, SleepRevive harnesses the power of Alpha, Delta, Beta, Theta, Gamma, 432Hz, 3.2Hz, and 40Hz frequencies to guide you on a journey to the depths of rejuvenating sleep. Experience the unrivaled bliss of deep sleep with our Delta waves, as your body and mind enter a profound rest and restoration state. Awaken refreshed and revitalized with our Beta waves, ready to embrace the day's challenges with renewed energy and focus. Need a quick boost? Our Theta waves offer the perfect power nap solution, allowing you to recharge and invigorate yourself in mere moments. Achieve laser-like focus and heightened productivity with our Gamma waves, optimizing your work performance and maximizing your potential. Immerse yourself in the harmonious ambiance of our 432Hz frequency, creating an ideal environment for studying and learning. Feel the gentle waves of 3.2Hz as they revive your body, melting away fatigue and replenishing your vitality. Explore the captivating realm of binaural beats at 40Hz, where deep relaxation and inner peace await. SleepRevive is more than just an app—it's a gateway to a rejuvenated self. Transform your sleep, awaken your potential, and embrace a life filled with energy, focus, and well-being. Upgrade your sleep experience today with SleepRevive and unlock the power of your restorative rest.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
React Navigation
expo-av
Zustand
BUILD KIT DIFFICULTY
Starter
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.
