Term · technical
Web App Main Button
A native-rendered button at the bottom of a Telegram mini-app, controlled via Web App API: tg.MainButton.setText("Subscribe") / .show() / .onClick(). Looks like a system button (not a CSS element), so it always feels app-native and stays visible on scroll. Used for primary CTA per screen (Subscribe, Pay with Stars, Share). The Telegram Ads Spy mini-app uses MainButton for the primary action on each creative detail screen — visually replaces the in-page submit button.
Related terms
- Telegram Mini AppA web application that runs inside Telegram via the bot API. Mini apps give advertisers a native-feel experience without leaving t
- Telegram Main Mini AppA bot configuration where the launch-button opens a full-screen mini-app by default instead of a chat. Set via @BotFather, exposed
- Telegram Start ParameterA query parameter passed to a bot or mini-app via deep-link: t.me/<bot>?start=<value> opens the chat and triggers /start with the
- Cashier creativeA sponsored message that triggers a payment flow directly inside Telegram instead of redirecting to an external landing page. Thre
Cite this entry
Telegram Ads Spy (2026). "Web App Main Button" in Telegram Ads glossary. https://tgadsspy.com/info/main-button
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