Does Subway Surfers use data connection in order to run properly?

Question

I have iPhone 4. Does Subway Surfers World Tour use data connection?

Answer 1

Subway Surfers is an offline game. It requires data/WiFi for leaderboards and buy options, but that's it. You can play the game offline as long as you want.

Answer 2

This game used 70% of my data within 8 hours, I was even on my wifi.
This is very bad, my son downloaded the game, and it used up about 400 mb previous day also.
I did not know how to check the data usage that day otherwise I would have uninstalled then itself.