--- title: I Built an AI Tattoo App with Expo — Here’s Everything I... description: A developer shares lessons learned from building and launching an AI tattoo try-on app using Expo, React Native, and Google Gemini's image generation API. The... canonical: https://daily.dev/posts/i-built-an-ai-tattoo-app-with-expo-here-s-everything-i-learned-p7adqqaye twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I Built an AI Tattoo App with Expo — Here’s Everything I Learned | daily.dev og:description: A developer shares lessons learned from building and launching an AI tattoo try-on app using Expo, React Native, and Google Gemini's image generation API. The... og:url: https://daily.dev/posts/i-built-an-ai-tattoo-app-with-expo-here-s-everything-i-learned-p7adqqaye og:image: https://api.daily.dev/og/posts/p7adQQaYE.png og:image:alt: I Built an AI Tattoo App with Expo — Here’s Everything I Learned og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # I Built an AI Tattoo App with Expo — Here’s Everything I Learned **[Code with Beto](https://daily.dev/sources/codewithbeto)** · 30 min read · 0 upvotes · 0 comments ## Summary A developer shares lessons learned from building and launching an AI tattoo try-on app using Expo, React Native, and Google Gemini's image generation API. The post covers the full tech stack (Expo Router, Expo UI, BetterAuth, Prisma, RevenueCat, EAS hosting), UI/UX polish tips like haptics and real-device testing, App Store submission pitfalls including Apple's authentication guidelines, and marketing strategies such as Reddit ads, Apple Search Ads, and social media. The app reached 356 users and $15 MRR shortly after launch. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Thinking About Adding AI to your Expo React Native App? Read This First How to Avoid Costly Pitfalls When Building AI Features in React Native](https://daily.dev/posts/thinking-about-adding-ai-to-your-expo-react-native-app-read-this-first-how-to-avoid-costly-pitfalls-dht37kfgh) · The Miners · 0 upvotes · 0 comments - [Build and Publish a Full-Stack Mobile App with AI](https://daily.dev/posts/build-and-publish-a-full-stack-mobile-app-with-ai-xumtefxsq) · freeCodeCamp · 6 upvotes · 0 comments --- Tags: [#mobile](https://daily.dev/tags/mobile), [#react-native](https://daily.dev/tags/react-native), [#google-gemini](https://daily.dev/tags/google-gemini) [View this post on daily.dev](https://daily.dev/posts/i-built-an-ai-tattoo-app-with-expo-here-s-everything-i-learned-p7adqqaye) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"I Built an AI Tattoo App with Expo — Here’s Everything I Learned","url":"https://daily.dev/posts/i-built-an-ai-tattoo-app-with-expo-here-s-everything-i-learned-p7adqqaye","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/i-built-an-ai-tattoo-app-with-expo-here-s-everything-i-learned-p7adqqaye"},"datePublished":"2026-03-22T11:31:13.232Z","dateModified":"2026-03-22T11:36:20.549Z","description":"A developer shares lessons learned from building and launching an AI tattoo try-on app using Expo, React Native, and Google Gemini's image generation API. 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