Once Upon | Photo book Creator — Revenue & Downloads Estimate
Photo & Video · Once Upon Publishing AB · iOS App Store
APPDEX ESTIMATE· accuracy-tested nightly on thousands of known figures
EST. DOWNLOADS / MO
Sign in free to see → · no credit card
PRICING
Free
free to download · App Store
Sign in free — see the estimate →Takes seconds · Google sign-in · no credit card. Estimates for smaller apps are free with an account.
HONEST CONFIDENCE
Estimates for smaller apps are free to view with an Appdex account — sign in with Google, no credit card. Headline apps stay open on the page; every figure ships with an honest confidence band, never fake precision.
Behind this number is an engine that never stops: it re-processes millions of rows of App Store signals every day across 1M+ apps, rebuilds every estimate nightly, and grades its own accuracy against tens of thousands of independently known figures before anything ships. How the engine is tested →
LOCKED ON ONCE UPON | PHOTO BOOK CREATOR