Book Summary App for iOS and Android

Mobile app
Book summary app with 10k+ installs & strong organic growth
Published on
December 4, 2025
Main Metrics
$6,500
ARR
100
Customers
2025
Launched

$50,000

Asking Price
Already Sold
Main Metrics
$6,500
ARR
100
Customers
2025
Launched

Overview

<p><b>Startup description</b></p><p>My product is a nonfiction book summary app built to help people learn faster and save time. I launched it as a solo founder to test whether my audience would engage with short, high-impact summaries that remove the friction of reading full books. The MVP quickly proved its demand: over 10,000 installs, 1,500+ active users, and $6,500+ in revenue with almost no marketing.</p><p>As a medical student and PhD researcher running a 900k-follower educational brand, my mission was simple — give people their time back by distilling the world’s best ideas into something they can consume in minutes.</p><p>I am now selling my product to fund my next product, an unbreakable screen-time-control system built with device-management technology.&nbsp;</p><p><b>Key highlights:<b></b></b></p><ul><li>Annual Revenue: ~$6,538</li></ul><ul><li>Annual Profit: ~$6,113</li></ul><ul><li>Churn Rate: 5-10%</li></ul><p><b>Other Metrics:</b></p><p>• 10,000+ total installs</p><p>• 1,500+ monthly active users</p><p>• $6.5k revenue in year one (MVP stage)</p><p>• Built and maintained by a single founder</p><p><b>Tech Stack</b></p><p>• Flutter – front-end and app logic</p><p>• Supabase – database + authentication</p><p>• RevenueCat – subscriptions &amp; payments</p><p>• Google Play Console / App Store Connect – distribution</p><p><b>Marketing and growth</b></p><p>The app was intentionally not aggressively marketed.</p><p>Growth came entirely from my organic reach and small test plugs to validate demand.</p><p><b>Main drivers:</b></p><p>• 900,000-follower audience in the reading/self-improvement niche</p><p>• “Minimal-push” tests via Instagram and TikTok</p><p>• A/B tested hooks based on book-summary viral trends</p><p>• Lookalike audiences available for paid scaling</p><p>Despite almost no promotion, the app still achieved:</p><p>• 10k+ installs</p><p>• $6.5k revenue</p><p>• 1.5k+ active users</p><p>• Strong retention among paying users</p><p>This shows clear upside for a buyer who wants to scale with paid ads or deeper content production.</p><p><b>Revenue and profit</b></p><p>Revenue (2025):</p><p>• App Store: $5,077</p><p>• Google Play: ~$1,461</p><p>Total: ~$6,538</p><p>Expenses (Mar–Dec):</p><p>• Supabase: $300</p><p>• Apple Dev: $100</p><p>• Google Dev: $25</p><p>Total: $425</p><p>Net Profit: ~$6,113</p><p><b>Return on investment</b></p><p>Buyers can recover the full acquisition cost quickly because the app is already profitable and requires minimal maintenance.</p><p>Scaling opportunities that increase ROI:</p><p>• Use my audience insights + lookalike datasets</p><p>• Add more summaries (templates already exist)</p><p>• Turn on paid ads with proven creatives</p><p>• Introduce annual plans + upsells</p><p>Strong upside with low operational overhead.</p><p><b>Startup assets<b></b></b></p><p>• iOS app (fully functional, live)</p><p>• Android app (fully functional, live)</p><p>• Supabase database</p><p>• RevenueCat configuration</p><p>• Branded templates for future summaries</p><p>• Access to lookalike audiences + winning creatives</p><p>• Consultation from me to transfer insights + growth strategy</p><p>Note: My followers are not included as an audience asset unless the buyer invests in my other product.</p><p><b>Risks</b></p><p>• Solo-founder project, so the buyer must understand the content model</p><p>• Scaling requires consistent summary creation or outsourcing</p><p>• Competition exists (Headway, Blinkist)</p><p>However, the app succeeds by focusing on authentic book-club-style summaries, not low-effort AI rewrites — making it uniquely loved by users.</p><p><b>Summary</b></p><p>My app is a proven MVP with strong organic traction, 10,000+ installs, and profitable revenue — built by a medical student and PhD researcher with a 900k audience. It validates a massive demand: people want to learn faster and reclaim their time.</p><p>I’m selling it to fund my other product, the largest project of my career: the first unbreakable screen-time-control system with no workarounds. Buyers can acquire the app or reach out directly about an equity deal in my other product.</p></br>✅ $6,500 in ARR✅ 100 customers✅ Business model: Freemium✅ Built with React Supabase, Flutter, RevenueCat

$6,500

Annual Revenue

100

Number of Customers

Expenses

$30/month for Supabase & hosting (from March 2025), $100/year Apple Developer account, $25 Google Play registration.

Business Model

The app follows a freemium subscription model. Users download the app for free and can unlock the full library of summaries through monthly or annual in-app subscriptions on iOS and Android.

Target Audience

Busy learners, self-improvement enthusiasts, students, young professionals, and anyone who wants to learn faster but doesn’t have time to read full books.

Asking Price Reasoning

The asking price reflects the app’s proven traction (10k+ installs, $6.1k annual profit, strong organic conversions), extremely low operating costs, and its ability to scale rapidly with proper marketing—especially via my combined audience of 900,000 followers.

Reason for Selling

I’m selling because the app was always an MVP designed to validate demand. Now that it has over 10,000 installs and strong early revenue with almost no marketing, I’m shifting my focus to building a far more ambitious product.

Growth Opportunity

The biggest growth opportunity is unlocking the app’s full marketing potential, which I intentionally did not do while treating this app as an MVP. The new owner can immediately scale using my data-proven book content strategy.

30 days free support from seller

Competitors

Blinkist, Headway, Shortform, Mentorist — large players in the book-summary space. My app differentiates itself by being creator-driven, more affordable, and built on deeply original, high-quality summaries designed for 5-minute daily learning.

Tech Stack

Supabase, Flutter, RevenueCat.

Traffic Metrics

Revenue Metrics

How it works

Main Metrics
$6,500
ARR
100
Customers
2025
Launched

$40,000

Asking Price
Already Sold
Founder Details
Read the story
Main Metrics
$6,500
ARR
100
Customers
2025
Launched

Profitable startups straight to your inbox

Join 10,000+ entrepreneurs and investors looking for their next startup acquisition opportunity.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.