App Overview

Sleep Mix: White Noise Machine icon

Sleep Mix: White Noise Machine

Serghei Petcoglo · Health & Fitness

Have you ever felt like your day is going upside down and all your plans fail just because you had a bad night sleep? To be honest, we’ve all been there and felt miserable, and if this happens often, you can easily b...

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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.

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A product spec, screen plans, and build steps for your coding agent.

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What's included16 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

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.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Sleep Mix: White Noise Machine: 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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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

Offer a larger selection of sounds and user-generated content.

Assumption to check: Limited sound options compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to customize and save their own sound mixes.

Assumption to check: No user customization for mixes

Validate with people who use this workflow before building.

Hypothesis 3

Integrate sleep tracking to provide users with insights on their sleep patterns.

Assumption to check: Lack of sleep tracking features

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

Have you ever felt like your day is going upside down and all your plans fail just because you had a bad night sleep? To be honest, we’ve all been there and felt miserable, and if this happens often, you can easily become sleep deprived and stop functioning properly, so why not use soothing SOUNDS as a powerful tool to optimise your sleep quality? Wether you are stressed at a new job, or you are a new parent, you have noisy neighbours, your partner is a loud snorer or maybe you just have trouble falling asleep - Sleep Mix will help you relax, disconnect your mind and get better sleep every single night! Sleep Mix offers you a personalised experience that will help you relax your senses and fall into a deep, comfortable and restful sleep. From Forest Walks and Snowy Mountains, to Sandy Beaches, emerge into an ambient of enveloping natural sounds that create peaceful soundscape Scenes that relax your mood and elevate your spirit. Customise your own Sleep Mix, and listen to what makes you feel safe, calm and focused on your inner senses. You can enjoy listening and Mix over 100 Sounds, to create your perfect Sleep Bubble. Edit your Sleep Mix to your own preferences and emerge into your personal calming soundscape. You can choose from various different sounds that relate to nature, air, water, animals, lullabies, city sounds and many more. Create your sleep mix, set your timer, relax and get ready to have the best sleep ever. You deserve to be well rested, calm and ready to enjoy the next day to its full potential! Terms & Conditions: https://sites.google.com/view/sleepmix/terms-conditions Privacy Policy: https://sites.google.com/view/sleepmix/privacy-policy

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Screenshots

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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
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BUILD KIT DIFFICULTY
Intermediate

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.