I have been in this situation many times before. My general advise is don't let poker get in the way of your real life there is always another tourney tomorrow.
You did not specifiy speed of tourney, table size and how many entrants. My general rule for 100- 200 entrants normaly speed, 9 handed MTT is to take the number of entrants left minus the number of places paid multipy this figure by 1.5 and then subrtact it from number of entrants left. This will give me roughly a safe position you can cash from.
So in you case 70-27= 43 then 43*1.5=65 then 70-65= 5. So need to be in roughly 5th position to cash. So you will not make ITM from 16th -20th place. What I would do is shove almost every hand unitl I bust or get close to 5th.
Note 1.5 multiplier I used will change depending on the factors - Speed of tourney, Max table size, number of entrants.
ACR does not support MTT on mobile right now only Jackpot sng.