Telegram Web and Telegram Web Apps explained

What “Telegram web app” means: Telegram Web in your browser (web.telegram.org, versions K and A) and Telegram Web Apps / Mini Apps that open inside chats. How to log in, sign up and build or monetize a Web App.

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Laptop browser with Telegram Web chats connected to a phone opening a Mini App game — Telegram web app

Content owner: Adsun Editorial & Ad Operations Team · Last verified: 2026-10-18

Quick answer

“Telegram web app” means two things. Telegram Web is the browser version of Telegram at web.telegram.org (two clients, /k and /a) that you log into with a QR code or your phone number — no install needed. Telegram Web Apps, now called Mini Apps, are HTML/JavaScript apps that open inside Telegram from a bot, a link or the attachment menu, using the window.Telegram.WebApp API. Mini Apps can show ads from networks like Adsun and be promoted with Adsun campaigns.

Key takeaways

Telegram Web = Telegram in a browser at web.telegram.org.
Log in by scanning a QR code from your phone, or with your number.
Telegram Web Apps = Mini Apps built with HTML/JS inside Telegram.
Mini Apps can earn with Adsun ad blocks and grow with Adsun ads.

How to use Telegram Web

Open web.telegram.org in Chrome, Safari, Firefox or Edge.
On your phone: Settings → Devices → Link Desktop Device, then scan the QR code.
Or choose “Log in by phone number” and enter the code.
Chats, channels and bots sync with your other devices.

Telegram Web sign up

You can create a new account directly on Telegram Web by entering a phone number that is not registered yet and confirming the code. See our full sign-up guide for phone and desktop.

What are Telegram Web Apps (Mini Apps)?

Web pages that run inside Telegram, opened from a bot button, a t.me link or the menu.
Built with standard HTML, CSS and JavaScript plus the Telegram WebApp API.
Get the user’s Telegram context, theme colours and native buttons.
Can accept payments in Telegram Stars and show ads.

Monetize or promote a Telegram Web App

Create a free publisher account at adsun.io, add your Mini App or bot, create Reward, Interstitial or Task blocks, paste the SDK or bot snippet and follow earnings per block and country. Payouts are in USDT.

Create a free advertiser account at adsun.io, top up in USDT, choose Network (Mini App and bot placements) or Native Ads (channel posts and bot messages), pick countries and languages, bid on CPM or CPC and launch after review. Current minimums are on the pricing page.

Metric definitions and formulas

CPM: Cost per mille: what an advertiser pays for 1,000 ad impressions.CPM = (Ad spend ÷ Impressions) × 1,000
CPC: Cost per click: average price an advertiser pays for one click.CPC = Ad spend ÷ Clicks
CTR: Click-through rate: the share of impressions that produced a click.CTR = (Clicks ÷ Impressions) × 100%
eCPM: Effective CPM: what a publisher earns per 1,000 impressions, whatever the pricing model.eCPM = (Publisher earnings ÷ Impressions) × 1,000
Fill rate: The share of ad requests that returned an ad.Fill rate = (Filled ad requests ÷ Total ad requests) × 100%

More terms in the glossary and the advertising metrics guide.

Worked example

Hypothetical example — not real Telegram or Adsun data

A new channel owner spends $50 on an Adsun CPC campaign at $0.05 per click = 1,000 clicks. 35% join the channel = 350 subscribers, so cost per subscriber = 50 ÷ 350 ≈ $0.14. Use your own campaign reports for real numbers.

Adsun measurement methodology

Adsun counts an impression when an ad is rendered in a publisher block, a click when the user opens the ad destination, and a reward only after the server-to-server Reward URL confirms completion. Debug-mode traffic is excluded from billing and reports. Metrics are shown per platform, block and country in the partner and advertiser dashboards. Adsun does not publish aggregate network benchmarks in this guide; any number below marked “Hypothetical” is illustrative only. See the SDK documentation for integration details.

About Adsun

Adsun is a Telegram advertising network operated by Adsun. Products: Rewarded ads, Interstitial ads, Task ads, Native ads. Platforms: Telegram Mini Apps, Telegram bots, Telegram channels. Learn more about Adsun.

Start earning or growing with Adsun

Publishers earn USDT from Mini Apps, bots and channels. Advertisers reach Telegram users with CPM or CPC campaigns.

Become a publisher — sign up free Start advertising

Frequently asked questions

Is Telegram Web safe?

Use only web.telegram.org, log out on shared computers and review active sessions in Settings → Devices.

What is the difference between Telegram Web K and A?

They are two official browser clients with different interfaces; both use the same account.

Do I need a bot to make a Telegram Web App?

Yes. A Mini App is attached to a bot you create with @BotFather, which provides the launch button and link.

Can a Telegram Web App show ads?

Yes. Adsun Reward, Interstitial and Task blocks run inside Mini Apps through the Adsun SDK.

Sources

Update log

2026-10-22: First published. Telegram features are described generally; check telegram.org and core.telegram.org for current rules.

What is a Telegram Mini App?Telegram Mini Apps explained: web apps that open inside Telegram, how users launch them, popular types (games, shops, wallets, tools), benefits for developers and how Mini Apps earn with Adsun ads.Create a Telegram Mini AppBuild a Telegram Mini App: create a bot, build a web app with telegram-web-app.js, host it on HTTPS, register it with BotFather (/newapp or menu button), validate initData, add payments and monetize with the Adsun SDK.Mini App monetizationHow to monetize a Telegram Mini App: rewarded, interstitial and task ads, placement planning, SDK setup, frequency limits and revenue measurement with Adsun.Create a Telegram accountTelegram sign up step by step: create a Telegram account on iPhone, Android, desktop or Telegram Web, verify your number, set a username, add a login email and secure the account with two-step verification.