<p>My app lets users record speech or import audio and turn it into accurate text with AI (OpenAI Whisper), with AI-generated titles, summaries and formatting. Launched on iOS in September 2023 and on Android in February 2024, it has 3 years of live revenue and is monetized with weekly, monthly and annual subscriptions via RevenueCat. No ads.</p><p><b>Key highlights:</b></p><ul> <li>Annual revenue: $1,818 gross / $1,361 net proceeds (last 12 months)</li> <li>Lifetime gross revenue: $11,183 since 2023 (App Store 93%, Google Play 7%)</li> <li>MRR: $89 with 9 active subscriptions (Oct 2026 snapshot)</li> <li>Running costs: ~$7/month (~$2 AI usage + $5 VPS), very high margin</li> <li>CAC: $0, no paid marketing; ~95 new users and 125 active users in the last 28 days</li> <li>Geographically diversified: no single country above 17% of proceeds (Türkiye, Nicaragua, US, Colombia, Japan).</li> </ul> <p><b>Team</b></p><p>Solo founder running a portfolio of 30+ apps. The app needs very little time: occasional reviews/support emails and keeping it compatible with new OS versions. No employees.</p><p><b>Tech Stack</b></p><ul> <li>Mobile: Flutter / Dart (single codebase for iOS and Android), BLoC, Floor (SQLite), Dio, FFmpeg for audio conversion.&nbsp;</li> <li>Backend: Node.js / Express, Prisma ORM, PostgreSQL, Redis, Docker on a Linux VPS.&nbsp;</li> <li>AI: OpenAI Whisper (speech-to-text) and GPT-4o-mini (titles, summaries, formatting).&nbsp;</li> <li>Other: RevenueCat, Firebase Analytics &amp; Crashlytics.</li> </ul> <p><b>Marketing and growth</b></p><p>All growth came from organic App Store / Google Play search (ASO). No ongoing paid marketing. Revenue peaked in 2024 ($5.5K gross) and has declined over the last 12 months (from ~$260/month to ~$90–115/month), but the app still acquires ~95 new users per month organically.</p><p><b>Revenue and profit</b></p><ul> <li>Gross revenue (12 mo): $1,818.50 from 308 transactions</li> <li>Net proceeds (12 mo): $1,361.32</li> <li>Average of last 3 months: $103 gross per month</li> <li>Revenue by year: 2023 $714 · 2024 $5,465 · 2025 $3,845 · 2026 YTD $1,159</li> <li>Monthly costs ~$7, so almost all proceeds are profit</li> </ul> <p><b>Return on investment</b></p><p>At $2,900 and ~$1,300/year net profit, payback is a bit over 2 years at current numbers with zero marketing. Buyers can shorten it with Latin American Spanish localization (already ~25% of proceeds), an ASO refresh, price/paywall testing and Apple Search Ads.</p><p><b>Startup assets</b></p><ul> <li>iOS app (App Store transfer) and Android app (Google Play transfer) with reviews and active subscriptions</li> <li>Full source code: Flutter app + Node.js/Express backend</li> <li>RevenueCat project and product configuration</li> <li>User database and 9 active paying subscribers</li> <li>App icon, design assets, store metadata and screenshots</li> <li>30 days of technical handover support.</li> </ul> <p><b>Risks</b></p><p>Revenue has been declining over the last 12 months, so a buyer should plan ASO/marketing work to reverse the trend. The app depends on OpenAI APIs (costs are currently only ~$2/month). The transcription category is competitive; differentiation via localization and pricing is recommended.</p><p><b>Summary</b></p><p>A 3-year-old, two-platform transcription app with $11.2K lifetime revenue, diversified countries, ~95 organic new users/month and almost zero running costs. A good, low-risk entry for a buyer who can invest a few hours a week in ASO and localization. All numbers are from RevenueCat and can be verified live via screen share.</p><p>✅ $1,818 TTM revenue</p><p>✅ 9 customers</p><p>✅ Business model: Freemium</p><p>✅ Built with Node.js, Flutter, OpenAI</p>