Prompt Alert on Tech Upgrade

Hi,

Please make a prompt alert asking for confirmation on tech before upgrading.

I have accidentally upgraded my digging skills 3 times because:

1. i accidentally clicked twice on tech when iphone lagged out.
2. when trying to scroll down the screen using my right thumb.

Thanks!

Lol I have done that several times!!
My stone is lvl 7 because I tapped twice cause it acted like it wasn't loading or anything!!
What a waste of money!!!
But lol yea that would be nice

I've never accidentally upgraded a tech.... never.

all mine were maxed b4 lag on haypi existed..

i agree with this! Open the tech centre, and boom, bye bye money on stupid extra 5% stone per hour

this wouldnt be hard to add either....

I am not alone ..

nope you arnt its happened to friends of mine too!