App Overview

Sleeping Sounds, Relax & Sleep icon

Sleeping Sounds, Relax & Sleep

Ertan Eksi · Health & Fitness

The most advanced Sleep Helper on the App Store

$29.99 · In-app purchases

PRICE
$29.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.8
227 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.

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Build Kit

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

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Combine features and design from your favorite apps.

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What's included18 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 Sleeping Sounds, Relax & 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.
            

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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

Expand sound library with user-generated content or partnerships.

Assumption to check: Limited sound variety compared to competitor apps

Validate with people who use this workflow before building.

Hypothesis 2

Implement better error handling and performance optimizations.

Assumption to check: Occasional crashes during playback

Validate with people who use this workflow before building.

Hypothesis 3

Simplify the onboarding process and clearly explain benefits.

Assumption to check: Subscription model can confuse users

Validate with people who use this workflow before building.

Hypothesis 4

Integrate sleep tracking capabilities to enhance user experience.

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

The most advanced Sleep Helper on the App Store. With this app you'll relax and fall into a peaceful deep sleep. Getting a good night’s sleep is one of the most important things you can do. It can improve your health, lower your stress, and make you more productive at work. Works without Internet connection and also in Lock Screen. According to the National Sleep Foundation, getting enough sleep is directly connected to better health. So we know it's important to get a good night's rest. White noise has been shown to not only help people fall asleep more quickly, but also it can disguise other noises that may wake you during the night. Repetitive or ambient music is very good for falling asleep. What's especially important is that there be no dramatic shifts in the dynamics of the music. How it works: • Select sounds and combine them to create a mix • Adjust the volume of each sound individually • Set the timer • Lay back and relax Features: • 150 High Quality Relaxing Sound & Music Loops to Choose and Mix • 14 Ambient Sounds • 11 Isochronic Brainwaves • 19 Presets • Thousands of combinations for sound mixes • Individual volume adjustment to Unlimited Mixing Option • Save Your Mixes • Timer feature to set a duration when you go to sleep • Sleeping Tips • App runs in the background and while screen is locked • AirPlay Supported • Works without internet connection. Want new sounds ? Write a review and let us know. Only on the App Store Loops: Rain, Lightrain, Heavyrain, Rainydrive, Stormy, Lightning, Umbrella, Waterfall,Wind, Cavern, Night, Leaves, Deepwater, Scuba, Ocean, Swim, Lake, Whalesa, Whalesb, Whalesc, Riverside, Pool, Boiling, Fountain, Seagulls, Frog, Birds , Catpurr, Horsea, Horseb, Cicadas, Farm, Jazza, Jazzb, Jazzc, Flute, Musicboxa, Musicboxb, Guitara, Classic, Caxixi, Kalimba, Bamboo, Bella, Pianob, Pianoa, Pianoc, Pianod, Congaa, Congab, Zenflutea, Zenfluteb, Operaa, Indiana, Chanta, Choira, Zen, Chillout, Pipaa, Tibetana, City, Park, Crowd, Street, Cloudy, Bamforest, Fireplace, Heartbeat, Walka, Walkb, Chimes, Oldclock, Whitenoise, Hairdryer, Dryer, Vacuum, Construct, Machinea, Carride, Railway, Industry, Fanlow, Fanmid, Fanhigh

Written user reviews are not shown here. Check current App Store reviews >

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
Supabase
react-navigation
expo-av
react-query
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.