Smartphone program (3)
I believe the answer is:
app
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">smartphone program</span>' is the definition.<br/ ><span class="explanation-format__explanation">(apps on your phone)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for app that I've seen before include "Program for a smart phone, in short" , "Software item" , "Software program for a mobile device" , "Software for mobile devices, in short" , "bit of software" .)