no, telegram actually makes money off of bots, that users have to add themselves. people like the Kenian Electricity company that have a bot to sell prepiad electricity, that is how telegram makes their money.
but they are upfront about it.
but hey, keep criticising the app you have never used because "everyone is using whatsapp"
https://telegram.org/faq#q-how-are-you-going-to-make-money-out-of-this
We believe in fast and secure messaging that is also 100% free.
Pavel Durov, who shares our vision, supplied Telegram with a generous donation through his Digital Fortress fund, so we have quite enough money for the time being. If Telegram runs out, we'll invite our users to donate and add non-essential paid options to break even. But making profits will never be a goal for Telegram.
If you believe that I have a bridge to sell you...