RocKnow: Rock ID & Collection Android
RocKnow: Rock ID & Collection is #170 in Lifestyle Grossing on Google Play in United States and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperRiver Stone Tech
Category–
PriceFree
Released–
Installs–
Rating★ 4.7 (0)
Updated–
Content rating–
Rating
4.7 ★
0 ratings
Measured
Best rank now
#170
Lifestyle GrossingMeasured
RocKnow: Rock ID & Collection on Google Play
App details
App ID
rocknow.stone.collection.rock.identifier
Publisher
River Stone Tech
In-app revenue
Worldwide, what users spend in RocKnow: Rock ID & Collection before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: In-app purchase-led
How RocKnow: Rock ID & Collection makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | LifestyleGrossing | #170 |
Apps near RocKnow: Rock ID & Collection on the chart
Lifestyle Grossing, around #170.
Ratings
Google Play, worldwide.
Rating
4.7 ★
0 ratings
Measured
Ratings
0
Measured