Telegram Mini App Development Guide: From Zero to Live in One Day
Telegram Mini Apps run inside Telegram's chat interface. No App Store submission. No Play Store review. No separate download. A user taps a link, the app opens inside Telegram, and it works on iOS, Android, desktop, and web — all from one codebase. Over a billion monthly active users can reach it without installing anything. I built and shipped my first Telegram Mini App — a number speed game called SpeedTap — in one day. No prior Telegram development experience. Claude Code handled the implementation. This guide covers the full process, including the platform-specific problems that no tutorial warned me about. What a Telegram Mini App Actually Is A Telegram Mini App is a web page that loads inside Telegram's built-in browser (WebView). It's standard HTML, CSS, and JavaScript. You can use any frontend framework — React, Vue, vanilla JS. The app gets displayed inside the Telegram chat window, and Telegram provides a JavaScript SDK for features like user authenticati...