<br>
seems to be the best and only way that currently works on the app version to create a new line break. I have tried it successfully in a review, as well as unsuccessfully tried all other Unicode/HTML newline-related characters that the Wikipedia page for newlines would tell me.
I used <br>
with |
immediately on either side, using no closing tag, and it magically created a single line break without revealing the source or screwing anything up.
TLDR: <br>
lets you successfully utilize single line breaks in Google Play app -- unlike everything else I tried (a lot).
P.S. I have no clue how to make the thing show source instead of being used as source. !^( Now I do, and I know it works on both the desktop and mobile sites. !!
Additionally, upon searching for how to make it show the source, I stumbled upon this. <del></del>