How many quarters laid flat would cover Central Park? I built a daily game where being close enough scores — plus 3 more original puzzles

Solo dev. Launched Typewriter Games last week: 4 original daily puzzles — Close Enough (estimation, like the Central Park question), Numora (deduce a number, hints cost points), Quintet (five-word ladder), Reckon (mental math).
Dailies are free forever. No ads, no notifications, no accounts.
Week one: \\\~70 downloads, \\\~6% converted to paid. Distribution is clearly my bottleneck — AMA about any of it.
App Store: Typewriter Games (link in comments)