--- title: Web3 Authentication for Your App | daily.dev description: A practical walkthrough of integrating Web3 authentication into a Flutter app using the Web3Auth Plug and Play SDK with Sapphire Devnet. Covers dashboard... canonical: https://daily.dev/posts/web3-authentication-for-your-app-eo8myrb1v twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Web3 Authentication for Your App | daily.dev og:description: A practical walkthrough of integrating Web3 authentication into a Flutter app using the Web3Auth Plug and Play SDK with Sapphire Devnet. Covers dashboard... og:url: https://daily.dev/posts/web3-authentication-for-your-app-eo8myrb1v og:image: https://api.daily.dev/og/posts/Eo8mYrB1v.png og:image:alt: Web3 Authentication for Your App 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. # Web3 Authentication for Your App **[Coins Bench](https://daily.dev/sources/coinsbench)** · 8 min read · 0 upvotes · 0 comments ## Summary A practical walkthrough of integrating Web3 authentication into a Flutter app using the Web3Auth Plug and Play SDK with Sapphire Devnet. Covers dashboard configuration (project setup, redirect URLs, chain/network settings, authentication providers, and branding), Android-specific Gradle and deep link setup, and SDK initialization in Flutter. The author also shares a hard-learned lesson: the Flutter SDK has limited Web3Auth support compared to web, and ultimately recommends Reown (powered by WalletConnect) as a working alternative for social and external wallet authentication in Flutter. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Building Secure FinTech Apps with Flutter: Security Measures Every Developer Should Follow \(Flutter 3.35\+\)](https://daily.dev/posts/building-secure-fintech-apps-with-flutter-security-measures-every-developer-should-follow-flutter--bi1lkrgwl) · Medium · 0 upvotes · 0 comments - [Reviving a 6-year-old Flutter app: the technical play-by-play](https://daily.dev/posts/reviving-a-6-year-old-flutter-app-the-technical-play-by-play-tbspmmxcq) · Medium · 0 upvotes · 0 comments - [How to Integrate APIs Seamlessly in Flutter](https://daily.dev/posts/how-to-integrate-apis-seamlessly-in-flutter-rqxtqkpmi) · Flutter Community · 1 upvotes · 0 comments - [Deploy Smart Contracts Securely Using Tangem Wallet with Hardhat 3](https://daily.dev/posts/deploy-smart-contracts-securely-using-tangem-wallet-with-hardhat-3-runh4osrh) · Coins Bench · 0 upvotes · 0 comments - [Kotlin / Wasm — Auth part 1: Google Sign in](https://daily.dev/posts/kotlin-wasm-auth-part-1-google-sign-in-dp1b4k1zm) · ProAndroidDev · 0 upvotes · 0 comments --- Tags: [#flutter](https://daily.dev/tags/flutter), [#blockchain](https://daily.dev/tags/blockchain) [View this post on daily.dev](https://daily.dev/posts/web3-authentication-for-your-app-eo8myrb1v) ```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":"Web3 Authentication for Your App","url":"https://daily.dev/posts/web3-authentication-for-your-app-eo8myrb1v","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/web3-authentication-for-your-app-eo8myrb1v"},"datePublished":"2026-07-29T11:20:48.551Z","dateModified":"2026-07-29T11:21:12.829Z","description":"A practical walkthrough of integrating Web3 authentication into a Flutter app using the Web3Auth Plug and Play SDK with Sapphire Devnet. 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