HAMARU: Brain Test & Training Android
HAMARU: Brain Test & Training is #128 in Games › Strategy Free on Google Play in Japan and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperHAMARU LLC
CategoryGames › Strategy
PriceFree
Released
Installs1M+
Rating★ 4.5 (18k)
Updated
Content ratingEveryone
Rating
4.5 ★
18k ratings
Measured
Best rank now
#128
Games › Strategy FreeMeasured
HAMARU: Brain Test & Training on Google Play
App details
App ID
jp.co.studioms32
Publisher
HAMARU LLC
Content rating
Everyone
HAMARU: Brain Test & Training downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where HAMARU: Brain Test & Training's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in HAMARU: Brain Test & Training before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How HAMARU: Brain Test & Training makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 3 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Games › StrategyFree | #128 |
Apps near HAMARU: Brain Test & Training on the chart
Games › Strategy Free, around #128.
Ratings
Google Play, worldwide.
Rating
4.5 ★
18k ratings
Measured
Ratings
18k
Measured
Written reviews
50
Measured
About HAMARU: Brain Test & Training
The very refreshing brain trainer app.
More than 1000K downloads!
A fun way to train your brain and build up math skills.
A recommended way to prevent dementia and Alzheimer's disease.
Increasing popularity!
Train your brain with HAMARU
For those who like brain trainer, want to prevent brain aging and dementia.
User-friendly brain trainer and brain teaser!
Brain Test & Free Training Games!
Offline & no WIFI
More than 1000K downloads!
A fun way to train your brain and build up math skills.
A recommended way to prevent dementia and Alzheimer's disease.
Increasing popularity!
Train your brain with HAMARU
For those who like brain trainer, want to prevent brain aging and dementia.
User-friendly brain trainer and brain teaser!
Brain Test & Free Training Games!
Offline & no WIFI
What's new in 5.1.1
Improvement made in the current version includes the following.
adjusted playability
increased performance speed
adjusted playability
increased performance speed