iOS White Noise and Binaural Sleep Music App
Mobile app
iOS white noise and binaural sleep music app that provides high quality content for babies to sleep better
Published on
July 10, 2025


$28,000
Asking Price
Main Metrics
$8,000
ARR
500
Customers
2010
Launched
$50,000
Asking Price
Already Sold
Main Metrics
$8,000
ARR
500
Customers
2010
Launched
Overview
<p><b>Startup description</b></p><p>My app is a well-established app in the health and wellness space, helping parents tackle one of the most common early challenges: infant sleep. Launched in 2010, the app offers a science-backed platform to support healthy sleep routines for babies. Its core business model is built around subscriptions, with strong user retention and low churn. It has 14,000 MAUs, more than 2,000+ ratings, and 10+ million sleep sessions logged.</p><p><b>Key highlights:</b></p><ul><li>Annual revenue $8,000</li></ul><ul><li>Annual profit $8,000</li></ul><ul><li>Churn rate 0.3% average last 12 months</li></ul><ul><li>LTV $6.99 per paying customer</li></ul><ul><li>CAC $0</li></ul><ul><li>Business margin 100%</li></ul><p><b>Team</b></p><p>One person doing development and that's it. It's mostly passive.</p><p><b>Tech Stack</b></p><p>Swift for client-side and S3 to store files.</p><p><b>Marketing and growth </b></p><p>No marketing was done. Only monetization efforts like improving the onboarding funnel.</p><p><b>Return on investment </b></p><p>If buyers don't do anything, I would expect the project to be at $12,000 ARR at least in the next 12 months. It is about 2 years and 3 months. Ideally, buyers would attract more downloads via ASO, cross-promotion, social media, or other means.</p><p><b>Startup assets </b></p><ul><li>App codebase and IP.</li></ul><ul><li>All audio, design files, and assets.</li></ul><ul><li>Website codebase.</li></ul><p><b>Risks</b></p><p>If buyers work on the marketing side, they will be fine. Don't see any major disruptive risk.</p><p><b>Summary</b></p><p>The app runs with minimal maintenance and presents clear upside through improved App Store Optimization, cross-promotions, and social media growth. Monetization is solid but still has room for optimization—both in funnel performance and pricing strategy—making it a compelling opportunity for further scaling.</p></br>✅ $8,000 in ARR✅ 500 customers✅ Business model: SaaS✅ Built with Swift, Amazon S3
$8,000
Annual Revenue
500
Number of Customers
Expenses
No costs or services. Just the developer account, which is not just related to this app.
Business Model
In-app subscriptions. Monthly 3.99 EUR and yearly 9.99 EUR.
Target Audience
Parents.
Asking Price Reasoning
High retention, low churn, polished UX/UI and good funnel optimizations.
Reason for Selling
Money and lack of time.
Growth Opportunity
Marketing is non-existing. Pricing can be tweaked and conversion improved.
30 days free support from seller
Competitors
Sleep Baby Sleep, White Noise and others.
Tech Stack
Swift, Amazon S3.
Traffic Metrics
Revenue Metrics
How it works
$28,000
Asking Price
Already Sold
Main Metrics
$8,000
ARR
500
Customers
2010
Launched