TestMaker Android
TestMaker gets 1k+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
TestMaker is #36 in Education Free on Google Play in Japan and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperQuizMarket
CategoryEducation
PriceFree
Released
Installs500k+
Rating★ 4.7 (5.9k)
Updated
Content ratingEveryone
Rating
4.7 ★
5.9k ratings
Measured
Best rank now
#36
Education FreeMeasured
TestMaker on Google Play
App details
App ID
jp.gr.java_conf.foobar.testmaker.service
Publisher
QuizMarket
Content rating
Everyone
TestMaker 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 TestMaker'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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 TestMaker 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: Ad-led
How TestMaker makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 66 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 | EducationFree | #36 |
| Japan | EducationGrossing | #51 |
Apps near TestMaker on the chart
Education Free, around #36.
Ratings
Google Play, worldwide.
Rating
4.7 ★
5.9k ratings
Measured
Ratings
5.9k
Measured
Written reviews
42
Measured
About TestMaker
This app is an app that can make a collection of questions on their own.
Since there are two types of problems the form of a question description and selection question, you can solve the question in the quiz sensation.
Image pasted to the question statement, because there are a variety of options, such as automatic generation of choice in the selection problem, you can customize the question to their liking.
In addition, since there is also a text file ⇆ problem collection of conversion function, you can edit the problem in the PC, or you can send a collection of problems to a friend.
● The main purpose of use
- Memorization of foreign languages such as English words
- Archaic memorization
· Official of memorization
History memorization
• Periodic test preparation
- Junior high school test preparation
And high school test preparation
Center Exam
- Memorize for qualification acquisition
- Your own memorization book creation
Sound effects 魔王魂
Image Material icons
Since there are two types of problems the form of a question description and selection question, you can solve the question in the quiz sensation.
Image pasted to the question statement, because there are a variety of options, such as automatic generation of choice in the selection problem, you can customize the question to their liking.
In addition, since there is also a text file ⇆ problem collection of conversion function, you can edit the problem in the PC, or you can send a collection of problems to a friend.
● The main purpose of use
- Memorization of foreign languages such as English words
- Archaic memorization
· Official of memorization
History memorization
• Periodic test preparation
- Junior high school test preparation
And high school test preparation
Center Exam
- Memorize for qualification acquisition
- Your own memorization book creation
Sound effects 魔王魂
Image Material icons