That's not what I meant.
"18262 days" doesn't say much, but a progress meter (or maybe a pie chart with "Life lived" & "Life left") is more informative IMO.
Ah. I agree it would be more informative but also more depressing: a countdown gives you a (inaccurate of course) number of days left to 'make the most of'; showing the number of days done gives you an (accurate) count of days you (perhaps) haven't made the most of.
But to be honest the App was something I quickly put together in a few hours and I didn't really consider alternatives to a countdown.