83-App Portfolio

Mobile app
Turnkey portfolio of 83 production Flutter mobile apps live on Google Play with 2,500+ organic users and $0 hosting overhead
Published on
October 29, 2026
Main Metrics
$1,088
ARR
75
Customers
2026
Launched

$100,000

Asking Price
Already Sold
Main Metrics
$1,088
ARR
75
Customers
2026
Launched

Overview

<p>My product is a turnkey, production-grade mobile software portfolio consisting of 83 live apps on the Google Play Store, engineered and maintained from a single unified Flutter monorepo. The apps span high-intent, evergreen categories: professional trade certification &amp; exam prep (Pharmacy Tech, Welding, Sterile Processing, HVAC), personal finance &amp; wealth tracking (Net Worth, Debt Snowball, Investment Planner), lifestyle, and offline utilities.</p><p><b>Key highlights:</b></p><ul> <li>83 Live Apps on Google Play: Completely bypasses Google's strict 14-day, 20-tester closed-testing onboarding obstacle.</li> <li>Organic Traction: 2,570+ active installed devices and ~5,000 lifetime downloads grown with $0 paid ad spend.</li> <li>TTM Gross Revenue: $1,088 USD ($832 verified trailing 9-month run rate with September grossing $260+).</li> <li>Net Operating Profit: $981 USD (~90% gross profit margin).</li> <li>Server / Cloud Cost: $0.00 / month (100% offline-first local SQLite architecture).</li> <li>Deep Localization: 1,575+ native localized builds deployed across 21 languages.</li> <li>Android 15 &amp; 16KB Compliant: Built on AGP 8.5.1+, Target SDK 34/35 with 16KB memory page alignment.</li> </ul> <p><b>Team</b></p><p>Solo technical founder and mobile systems architect. Built, tested, localized, and shipped the entire 83-app monorepo independently with automated CI/CD and release runbooks. Zero payroll, zero employees, zero contractor dependencies.</p><p><b>Tech Stack</b></p><ul> <li>Frontend / Framework: Flutter 3.x, Dart (cross-platform single-codebase architecture).</li> <li>Database: Local SQLite with automated schema migrations. Zero external database overhead.</li> <li>Backend / Telemetry: Firebase Remote Config (kill-switch &amp; feature gating) and Google Analytics on free tiers.</li> <li>Monetization: Google Play In-App Billing (IAP) + Google AdMob ($3.37 eCPM, 87.4% match rate).</li> </ul> <p><b>Marketing and growth</b></p><p>100% organic growth. The apps rank naturally on Google Play Store search for targeted certification keywords and utility queries, reinforced by 21-language localization. No paid user acquisition (UA), digital ad campaigns, or influencer marketing have ever been run.</p><p><b>Revenue and profit</b></p><ul> <li>Monetization Model: Dual-engine Freemium. Free download tier with one-time in-app purchases for lifetime pro unlocks/ad removal, paired with high-eCPM Google AdMob interstitial and banner placements.</li> <li>Monthly Run-Rate: September 2026 generated $260.24 (206.00PlayStoreIAPacross16globalorders+206.00 Play Store IAP across 16 global orders +206.00PlayStoreIAPacross16globalorders+54.24 AdMob ads). October MTD is tracking at ~$150+.</li> <li>Operating Expenses: $0.00/month. No recurring cloud, server, or database bills.</li> </ul> <p><b>Return on investment</b></p><p>An acquirer can achieve rapid ROI through three primary levers:</p><ul> <li>iOS App Store Launch: Port the single-source Flutter codebase to iOS to instantly unlock high-ARPU Apple users.</li> <li>Paid UA: Running modest, targeted Google App Campaigns on high-converting exam prep and trade titles.</li> <li>Subscription Tiers: Transitioning from one-time lifetime unlocks to recurring weekly/monthly subscriptions.</li> </ul> <p><b>Startup assets</b></p><ul> <li>Full ownership transfer of all 83 Google Play Store app listings via Google Play Console transfer.</li> <li>Complete, exclusive Flutter monorepo source code and all visual/branding assets.</li> <li>Automated release and build runbooks (ALL_APPS_BUILD_RUNBOOK.md).</li> <li>Master due diligence telemetry spreadsheet detailing all 83 packages, live links, and historical metrics.</li> <li>30 days of post-sale transition support from the founder.</li> </ul> <p><b>Risks</b></p><ul> <li>Platform Policy Updates: Mitigated by the fact that the entire portfolio has already been updated and verified for Android 15 and strict 16KB page alignment.</li> <li>Organic Churn: Mitigated by the evergreen nature of trade licensing exams and utility tools that renew cohorts of test-takers and users annually.</li> </ul> <p><b>Summary</b></p><p>Rebuilding 83 compliant mobile apps from scratch would cost over $350,000 and months of closed-testing delays. This portfolio offers turnkey entry into 83 live, monetizing Google Play assets with verified organic traction, zero ongoing server bills, and immediate cross-platform iOS expansion potential.</p><p>✅ $1,088 TTM revenue</p><p>✅ 75 customers</p><p>✅ Business model: Freemium+Ads</p><p>✅ Built with Flutter, Firebase, SQLite</p>

$1,088

Annual Revenue

75

Number of Customers

Business Model

Freemium model combining one-time In-App Purchases (Google Play Billing lifetime pro unlocks priced from $3.99 to $9.99) and Google AdMob monetization (native banners and high-eCPM interstitial placements at natural break points).

Target Audience

Certification test candidates, skilled tradesmen (electricians, welders, HVAC techs), personal finance trackers, and mobile utility users.

Asking Price Reasoning

The asking price is based on Asset Replacement Value across 83 live Google Play production apps (~$1,200/app), not trailing EBITDA multiples. Building and launching 83 compliant apps from scratch—engineering clean Flutter codebases.

Reason for Selling

The heavy technical architecture, 21-language localization, and Android 15 / 16KB modernization are 100% complete across all 83 apps. As a solo technical founder, my focus is transitioning to new software ventures, and I am looking for a growth operator.

Growth Opportunity

Deploy the single-source Flutter codebase to the Apple App Store (iOS), launch targeted paid user acquisition (currently $0 marketing spend), and introduce recurring subscription tiers.

30 days free support from seller

Competitors

Pocket Prep, Simple Mobile Tools, and independent mobile app publishers on Google Play.

Tech Stack

Flutter, Firebase, SQLite.

Traffic Metrics

Revenue Metrics

How it works

Main Metrics
$1,088
ARR
75
Customers
2026
Launched

$100,000

Asking Price
Already Sold
Founder Details
Read the story
Main Metrics
$1,088
ARR
75
Customers
2026
Launched

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