GREEiN Downloads & RevenueGREEiN · App Store
GREEiN is #38 in Sports Paid in Japan and charting in 3 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
24 Sep 2026Full timeline · 5 events in the last 12 months
- 🚀GREEiN: now shown next to Green Slope, Putting Charts, GreenKit +5 morethe store's “similar apps” for it changed: who it's seen as competing with
- 📈GREEiN entered the top 10Top Paid · Sports · JP
- 📈GREEiN charting in a new countryUnited States
- 🆕GREEiN first spotted by AppInsider#23 in Top Paid · Sports · Japan
- 🆕GREEiN released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Sports PaidGREEiN at a glance
AI summary written from our chart and store data, 2026-11-03. It can be wrong: check the numbers above.
GREEiN is a paid golf utility app that uses camera and sensor data to analyze green grain and slope for golfers seeking to improve putting accuracy. The app holds niche positions in the Sports Paid charts of Japan, South Korea, and Indonesia, but its low user rating of 1.86 suggests significant dissatisfaction with its performance or value.
Similar apps: PuttReader, Golf GPS Rangefinder: Golf Pad, SwingU
GREEiN on the App Store
App details
App privacy Measured
GREEiN’s App Store privacy label declares 0 data categories used to track you across other companies’ apps and websites, 1 linked to your identity and 0 collected anonymously.
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
GREEiN downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Active users
All platforms, worldwide. Free with an account.
How this is calculated
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | SportsPaid | #38 |
 South Korea | SportsPaid | #58 |
 Indonesia | SportsPaid | #90 |
Apps near GREEiN on the chart
Sports Paid, around #38.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about GREEiN
From recent reviews.
About GREEiN
GREEiN, the app that gives instant info on grain and slope
Now get your grain reading in just ONE second!
Easier to use than ever before, GREEiN is sure to help your score!
Even pros admit that it’s difficult to read both the slope and the grain.
But with the new putt training app GREEiN, it’s a snap!
GREEiN has 3 easy-to-use functions:
GRAIN reader shows the roughness and direction of the grain!
SLOPE reader shows the degree and direction of the slope!
PUTT reader shows both, all at once!
All golfers who want to improve their score,
Everyone who wants to train their green reading skills,
GREEiN is the perfect app for you!
Enjoy golf even more with GREEiN!
This application was developed using open CV technology.
◎About the Functions
GRAIN reader:
Just take a photo of the green from knee-height with your smartphone facing towards the cup, and GRAIN reader will give you a reading for both the roughness and direction of the grain. Your result is visually displayed with easy-to-understand arrows showing direction. The number of arrows indicates the roughness of the grain in 3 levels.
SLOPE reader:
Just place your smartphone on the green facing towards the cup and SLOPE reader will give you a reading for both the degree and direction of the slope. Your result is visually displayed with easy-to-understand arrows showing direction. The degree of slope is indicated up to 21 degrees, by number and color.
PUTT reader:
Use both GRAIN reader and SLOPE reader all at once! Just perform the necessary steps for using each function at a single spot on the green and PUTT reader will give you a simultaneous reading for both slope AND grain! PUTT reader can give you just the hint you need to help predict how the condition of the green will affect your putting.
Compatible devices
iOS 9.0 and higher
Latest updates
More from Techno Craft Co., Ltd.
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