In my opinion, I think they already make something similar to token burning, what I know from them that if you bought DENT token from their app you could not withdraw it back outside the app (until this date), and the only way to utilize the token inside the app is to send it to other users within the app.
This means every dent token enter app from outside or bough inside app could not withdraw out to an external wallet or exchanges like Binance, so if the members of the app increases, the demand for tokens should increase so the tokens in the exchanges sites will be limited day after day, unless they change their policy at some point and allow for dent withdrawer outside their app.

But there is something fishy there, if I bought a DENT token from the app for example an amount of  DENT equal to  1G data and when I exhausted this 1G Data what will happen to tokens, does the company deduct it from the user balance and resell it again to Binance or to other users within app?!