# Hyphen

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### Explore Concepts

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Android SDK Quickstart</strong></td><td>Start building hassle-free Android Flow dapp using<br>Hyphen Android SDK. </td><td></td><td><a href="android/quick-start">quick-start</a></td></tr><tr><td><strong>iOS SDK Quickstart</strong></td><td>Start building hassle-free iOS Flow dapp using Hyphen iOS SDK. </td><td></td><td><a href="ios/quick-start">quick-start</a></td></tr><tr><td><strong>Concepts</strong></td><td>Explore our concepts that enables building hassle-free UX with most security.</td><td></td><td></td></tr><tr><td><strong>Mechanism Paper</strong></td><td>Learn more about Hyphen's key management schemes.</td><td></td><td><a href="concepts/hybrid-custody">hybrid-custody</a></td></tr></tbody></table>