Top Grossing · Books
Ordered by today's chart rank. Movement is vs ~7 days ago.
- 02–
Apple's US top charts, captured every morning. Grossing rank is Apple's own revenue ordering. We model it into an honest MRR estimate for every app and flag the niche moneymakers worth copying instead of the giants everyone already knows.
Pro · Any of these can be forked into a working product. Watch a real build first.
Apps tracked
38,302
Modeled estimates
1,268
Copyable picks
21,560
Charts captured
Sep 19, 2026
The startup leaderboard tracks payment-verified and founder-reported MRR, the figures behind every idea we publish.
See the startup leaderboardOrdered by today's chart rank. Movement is vs ~7 days ago.
SINGAPORE NEW READING TECHNOLOGY PTE. LTD. · Book
Free + IAP
227K ratings
$1.5M
MRR*
Cloudary Holdings Limited · Book
Free + IAP
48K ratings
$630K
MRR*
SINGAPORE NEW READING TECHNOLOGY PTE. LTD. · Book
Free + IAP
12K ratings
$440K
MRR*
CHANGDU (HK) TECHNOLOGY LIMITED · Book
Free + IAP
52K ratings
$480K
MRR*
UREAD GLOBAL PTE. LTD. · Book
Free + IAP
23K ratings
$470K
MRR*
Storytel Audiobooks USA LLC · Book
Free + IAP
66K ratings
$420K
MRR*
Techdelic Investment Co., Limited · Book
Free + IAP
5K ratings
$330K
MRR*
Crazy Maple Studio, Inc. · Book
Free + IAP
3.9K ratings
$330K
MRR*
SINGAPORE NEW READING TECHNOLOGY PTE. LTD. · Book
Free + IAP
22K ratings
–
HONG KONG RUIPAI TECHNOLOGY LIMITED · Book
Free + IAP
1.2K ratings
–
CHANGDU (HK) TECHNOLOGY LIMITED · Book
Free + IAP
37K ratings
–
*MRR is a modeled point estimate, never a measured figure: computed from grossing rank, ratings momentum, paid-chart position and verified anchors, recalibrated weekly, with our measured error published on the methodology page. The full modeled range sits behind every number (hover it, or open the app's estimator breakdown). Apps without enough signal show no number at all.
