Top Free · Books
Ordered by today's chart rank. Movement is vs ~7 days ago.
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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.
Gabriel Jacobson · Book
Free + IAP
15K ratings
$1.1M
MRR*
Rocketshield Browser Technology Limited · Book
Free
94K ratings
–
SINGAPORE NEW READING TECHNOLOGY PTE. LTD. · Book
Free + IAP
227K ratings
$1.5M
MRR*
SINGAPORE NEW READING TECHNOLOGY PTE. LTD. · Book
Free + IAP
12K ratings
$440K
MRR*
Rocketshield Browser Technology Limited · Book
Free
117K ratings
–
Storytel Audiobooks USA LLC · Book
Free + IAP
66K ratings
$420K
MRR*
Cloudary Holdings Limited · Book
Free + IAP
48K ratings
$630K
MRR*
Global Publishing Interactive, Inc · Book
Free + IAP
4.6K ratings
–
Yestory Mobile Development Limited. · Book
Free + IAP
11K 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.
