The traditionally teen-friendly app now counts 14% of smartphone users who are 35 or older as users, as compared to 67.5% of users ages 18 to 24. It remains to be seen whether the arrival of older users will be a turnoff for Snapchat’s core audience.
Snapchat's demographic is not the elderly.

( z1 have-mod :polarity - :ARG1 ( z2 demography :poss ( z3 company :name ( z4 name :op "Snapchat" ) ) ) :ARG2 ( z5 person :mod ( z6 elderly ) ) )