Message

Telegram Mini Apps

I build Telegram Mini Apps — web apps that open right inside Telegram. Users don’t register or install anything: they sign in with Telegram, pay in a couple of taps, and the interface follows the messenger’s theme.

Discuss your project
Deliverable
A Mini App connected to your bot, with a backend and payments
Stack
  • Mini App
  • React
  • TypeScript
  • FastAPI

01Scope

What you get

  • 01Interface on React or Preact with TypeScript
  • 02Secure sign-in via Telegram initData
  • 03Payments with Telegram Stars, cards and crypto
  • 04Telegram light and dark themes, native buttons and haptics
  • 05FastAPI backend and database
  • 06Fast loading even on a weak mobile connection

02Use cases

What it’s for

  • Shop inside Telegram

    Catalogue, cart and checkout without leaving the chat.

  • Personal-data service

    Questionnaires, calculations, diaries and personal recommendations.

  • Games and giveaways

    Interactive mechanics with balances, leaderboards and provable fairness.

  • Bookings and appointments

    Pick a service and a time and pay in one screen.

03Process

How we’ll work

  1. 01

    Brief

    You describe the idea or the problem, I ask questions and suggest a solution.

  2. 02

    Estimate

    I pin down the scope, timeline and cost. Large projects are split into stages.

  3. 03

    Development

    I share progress along the way so feedback comes early, not at the end.

  4. 04

    Launch

    I deploy to a server, connect the domain and payments, and test on real devices.

  5. 05

    Support

    I stay in touch after release for fixes, improvements and new features.

04Cases

Related projects

  1. #00

    Ratsion

    Telegram Mini App

    A Mini App for personal nutrition: a questionnaire, calorie and macro calculation, meal plan generation and a food diary. Interface on Preact and TypeScript, FastAPI backend, Telegram sign-in and a partner bot.

    • Preact
    • TypeScript
    • FastAPI
    • Telegram Auth
    Open Mini App
  2. #01

    StarsBoost

    Website · Bot · Mini App

    A service for buying and selling Telegram Stars, Premium, TON and gifts. I built the React website, the Telegram bot, the Mini App and the FastAPI backend with payments and automatic order delivery.

    • React
    • FastAPI
    • Mini App
    • Payments
    Open websiteTelegram bot
  3. #02

    Royal Bot

    Bot · Mini App · Admin panel

    A Telegram game bot with a virtual balance: Telegram Emoji mini games, Mines and Tower with provable fairness, channel bets, cheques, referrals and leaderboards. An arena in a Mini App and an admin panel with broadcasts and contests.

    • aiogram
    • PostgreSQL
    • Mini App
    • Nginx
    Telegram bot

05FAQ

Questions and answers

Why a Mini App instead of a regular bot?

A bot is limited to buttons and messages, while a Mini App is a full interface: forms, catalogues, charts, animations. It still lives inside Telegram and knows the user without registration.

How is the user verified?

Telegram signs the launch data (initData). The backend verifies the signature with the bot token, so the client can’t impersonate another user.

Will it work on every device?

Yes — in Telegram on iOS, Android, desktop and web. I test the interface on real phones and respect the screen’s safe areas.

How much does it cost and how long will it take?

It depends on the scope. Describe the task on Telegram — after a couple of clarifying questions I’ll give you a price and a timeline. Large projects are split into stages so you see results as we go.

How do we get started?

Message @vozaaz on Telegram: what needs to be built, whether you have a design or examples, and your deadline. If you have a spec, send it over — it speeds up the estimate.

07Contact

Got a task?
Let’s talk.

Tell me what needs to be built, your timeline and budget — I’ll suggest a solution and an estimate.

Telegram@vozaaz