IQ Test Brain Training Riddles: iPhone vs Android
IQ Test Brain Training Riddles by Paul Stelzer is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.1 ★
11k ratings, both stores
Measured
Best rank now
#53
iPhone · 
Games › Trivia Grossing
Games › Trivia GrossingMeasured
App Store
App details
App ID
1347362487
Publisher
Paul Stelzer
Publisher country
Germany
Minimum OS
iOS 15.0+
Content rating
4+
Languages
6
EN FR DE IT PT ES
Size
62 MB
Google Play
App details
App ID
de.paulstelzer.iqtest
Publisher
InnoMobile GmbH
Publisher country
Germany
Content rating
Everyone
IQ Test Brain Training Riddles downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | – | 1M+ |
| Google Play | – | 1M+ Measured |
| Total | – | 1M+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where IQ Test Brain Training Riddles'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 before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How IQ Test Brain Training Riddles 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 now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.2 ★ | 6.7k |
| Google Play | 4.0 ★ | 4.7k 101 written reviews |
| Both stores | 4.1 ★ weighted by ratings | 11k |
About IQ Test Brain Training Riddles
- IQ Test completely in English and free to play
- Brain booster with different tasks
- Scientifically developed by students of the University of Rostock (Germany)
- With excercise mode: Play all quiz tasks with solutions and explanations again
- Many more great functions for the IQ Test are still planned
- Compare your result with friends
- In future: WIth Multiplayer Party Mode and quiz elements
---------------------------------------------------------------
Why should you take part of this IQ Test?
---------------------------------------------------------------
Influenced by WAIS-IV (Wechsler Intelligence Test for Adults) and research by students of the University of Rostock, the IQ Test includes the following tasks:
- Perceptive reasoning
- Processing speed
- working memory
- speech understanding
- Number understanding
- Logical thinking
These categories are queried in the IQ Test in various categories, including sample groups, dice test, remember pictures, number series, matrix test, estimate, order numbers and more!
Start your IQ Test now and compare with your friends! The first quiz has around 100 tasks, so take some time and start your IQ Test today! The test is free, but you can get extra features. This is a brain booster game.
---------------------------------------------------------------
With exercises
---------------------------------------------------------------
This app not only includes many IQ tests, you find also exercises and daily riddles to increase your brain power. You can solve daily one riddle of an IQ test.
---------------------------------------------------------------
What is an IQ Test?
---------------------------------------------------------------
An IQ test is used to show how "intelligent" you are in relation to other people. But what is intelligence? This is not a defined term and so intelligence is just what an IQ test measures. Therefore, different IQ tests can not be compared, just the same test, and it simply tells you if you have solved the tasks better (over IQ 100) or worse (under IQ 100) than the average. So do not take the IQ that seriously, just test how you cut off compared to others! This app is also developed for brain training.
---------------------------------------------------------------
Brain booster and brain training
---------------------------------------------------------------
To improve your brain performance, we have added numerous tasks and exercises in the IQ Test app that will increase your performance. So if you are about to take an employment test or a psychological test, you can use it to train your brain and get a better result. The tasks are not only in the IQ test area, but also help to improve logical thinking, math and more.
---------------------------------------------------------------
Information about in-app purchases and subscriptions
---------------------------------------------------------------
There is a Pro subscription in the app. The following notes app
- Brain booster with different tasks
- Scientifically developed by students of the University of Rostock (Germany)
- With excercise mode: Play all quiz tasks with solutions and explanations again
- Many more great functions for the IQ Test are still planned
- Compare your result with friends
- In future: WIth Multiplayer Party Mode and quiz elements
---------------------------------------------------------------
Why should you take part of this IQ Test?
---------------------------------------------------------------
Influenced by WAIS-IV (Wechsler Intelligence Test for Adults) and research by students of the University of Rostock, the IQ Test includes the following tasks:
- Perceptive reasoning
- Processing speed
- working memory
- speech understanding
- Number understanding
- Logical thinking
These categories are queried in the IQ Test in various categories, including sample groups, dice test, remember pictures, number series, matrix test, estimate, order numbers and more!
Start your IQ Test now and compare with your friends! The first quiz has around 100 tasks, so take some time and start your IQ Test today! The test is free, but you can get extra features. This is a brain booster game.
---------------------------------------------------------------
With exercises
---------------------------------------------------------------
This app not only includes many IQ tests, you find also exercises and daily riddles to increase your brain power. You can solve daily one riddle of an IQ test.
---------------------------------------------------------------
What is an IQ Test?
---------------------------------------------------------------
An IQ test is used to show how "intelligent" you are in relation to other people. But what is intelligence? This is not a defined term and so intelligence is just what an IQ test measures. Therefore, different IQ tests can not be compared, just the same test, and it simply tells you if you have solved the tasks better (over IQ 100) or worse (under IQ 100) than the average. So do not take the IQ that seriously, just test how you cut off compared to others! This app is also developed for brain training.
---------------------------------------------------------------
Brain booster and brain training
---------------------------------------------------------------
To improve your brain performance, we have added numerous tasks and exercises in the IQ Test app that will increase your performance. So if you are about to take an employment test or a psychological test, you can use it to train your brain and get a better result. The tasks are not only in the IQ test area, but also help to improve logical thinking, math and more.
---------------------------------------------------------------
Information about in-app purchases and subscriptions
---------------------------------------------------------------
There is a Pro subscription in the app. The following notes app
IQ Test Brain Training Riddles iPhone
IQ Test Deutsch Gehirntraining
IQ Test Brain Training Riddles is #53 in Games › Trivia Grossing in Germany and charting in 5 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperPaul Stelzer
CategoryGames
PriceFree
Released
Rating★ 4.2 (6.7k)
Version14.6.5
Age rating4+
First seen by us 24 Sep 2026
24 Sep 2026Installs (est.)1M+ worldwide
Rating
4.2 ★
6.7k ratings
Measured
Best rank now
#53
Games › Trivia GrossingMeasured
IQ Test Brain Training Riddles on the App Store
App details
App ID
1347362487
Publisher
Paul Stelzer
Publisher country
Germany
Minimum OS
iOS 15.0+
Content rating
4+
Languages
6
EN FR DE IT PT ES
Size
62 MB
IQ Test Brain Training Riddles downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where IQ Test Brain Training Riddles'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 IQ Test Brain Training Riddles 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 IQ Test Brain Training Riddles 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 now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | Games › TriviaGrossing | #53 |
| Germany | Games › TriviaFree | #62 |
| Germany | Games › WordFree | #77 |
 Brazil | Games › TriviaFree | #61 |
 France | Games › WordFreeGames › TriviaFree | #93 |
| Brazil | Games › WordFree | #85 |
 Indonesia | Games › TriviaGrossing | #91 |
 Italy | Games › WordFree | #123 |
| Indonesia | Games › TriviaFree | #93 |
| Indonesia | Games › WordFree | #120 |
Apps near IQ Test Brain Training Riddles on the chart
Games › Trivia Grossing, around #53.
Ratings
App Store, worldwide.
Rating
4.2 ★
6.7k ratings
Measured
Ratings
6.7k
Measured
About IQ Test Brain Training Riddles
- IQ Test completely in English and free to play
- Brain booster with different tasks
- Scientifically developed by students of the University of Rostock (Germany)
- With excercise mode: Play all quiz tasks with solutions and explanations again
- Many more great functions for the IQ Test are still planned
- Compare your result with friends
- In future: WIth Multiplayer Party Mode and quiz elements
---------------------------------------------------------------
Why should you take part of this IQ Test?
---------------------------------------------------------------
Influenced by WAIS-IV (Wechsler Intelligence Test for Adults) and research by students of the University of Rostock, the IQ Test includes the following tasks:
- Perceptive reasoning
- Processing speed
- working memory
- speech understanding
- Number understanding
- Logical thinking
These categories are queried in the IQ Test in various categories, including sample groups, dice test, remember pictures, number series, matrix test, estimate, order numbers and more!
Start your IQ Test now and compare with your friends! The first quiz has around 100 tasks, so take some time and start your IQ Test today! The test is free, but you can get extra features. This is a brain booster game.
---------------------------------------------------------------
With exercises
---------------------------------------------------------------
This app not only includes many IQ tests, you find also exercises and daily riddles to increase your brain power. You can solve daily one riddle of an IQ test.
---------------------------------------------------------------
What is an IQ Test?
---------------------------------------------------------------
An IQ test is used to show how "intelligent" you are in relation to other people. But what is intelligence? This is not a defined term and so intelligence is just what an IQ test measures. Therefore, different IQ tests can not be compared, just the same test, and it simply tells you if you have solved the tasks better (over IQ 100) or worse (under IQ 100) than the average. So do not take the IQ that seriously, just test how you cut off compared to others! This app is also developed for brain training.
---------------------------------------------------------------
Brain booster and brain training
---------------------------------------------------------------
To improve your brain performance, we have added numerous tasks and exercises in the IQ Test app that will increase your performance. So if you are about to take an employment test or a psychological test, you can use it to train your brain and get a better result. The tasks are not only in the IQ test area, but also help to improve logical thinking, math and more.
---------------------------------------------------------------
Information about in-app purchases and subscriptions
---------------------------------------------------------------
There is a Pro subscription in the app. The following notes app
- Brain booster with different tasks
- Scientifically developed by students of the University of Rostock (Germany)
- With excercise mode: Play all quiz tasks with solutions and explanations again
- Many more great functions for the IQ Test are still planned
- Compare your result with friends
- In future: WIth Multiplayer Party Mode and quiz elements
---------------------------------------------------------------
Why should you take part of this IQ Test?
---------------------------------------------------------------
Influenced by WAIS-IV (Wechsler Intelligence Test for Adults) and research by students of the University of Rostock, the IQ Test includes the following tasks:
- Perceptive reasoning
- Processing speed
- working memory
- speech understanding
- Number understanding
- Logical thinking
These categories are queried in the IQ Test in various categories, including sample groups, dice test, remember pictures, number series, matrix test, estimate, order numbers and more!
Start your IQ Test now and compare with your friends! The first quiz has around 100 tasks, so take some time and start your IQ Test today! The test is free, but you can get extra features. This is a brain booster game.
---------------------------------------------------------------
With exercises
---------------------------------------------------------------
This app not only includes many IQ tests, you find also exercises and daily riddles to increase your brain power. You can solve daily one riddle of an IQ test.
---------------------------------------------------------------
What is an IQ Test?
---------------------------------------------------------------
An IQ test is used to show how "intelligent" you are in relation to other people. But what is intelligence? This is not a defined term and so intelligence is just what an IQ test measures. Therefore, different IQ tests can not be compared, just the same test, and it simply tells you if you have solved the tasks better (over IQ 100) or worse (under IQ 100) than the average. So do not take the IQ that seriously, just test how you cut off compared to others! This app is also developed for brain training.
---------------------------------------------------------------
Brain booster and brain training
---------------------------------------------------------------
To improve your brain performance, we have added numerous tasks and exercises in the IQ Test app that will increase your performance. So if you are about to take an employment test or a psychological test, you can use it to train your brain and get a better result. The tasks are not only in the IQ test area, but also help to improve logical thinking, math and more.
---------------------------------------------------------------
Information about in-app purchases and subscriptions
---------------------------------------------------------------
There is a Pro subscription in the app. The following notes app
Latest updates
14.6.5
More from Paul Stelzer
IQ Test Brain Training Riddles Android
IQ Test Brain Training Riddles is #61 in Games › Trivia Free on Google Play in France and charting in 4 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperPaul Stelzer
CategoryGames › Trivia
PriceFree
Released
Installs1M+
Rating★ 4.0 (4.7k)
Updated
Content ratingEveryone
Rating
4.0 ★
4.7k ratings
Measured
Best rank now
#61
Games › Trivia FreeMeasured
IQ Test Brain Training Riddles on Google Play
App details
App ID
de.paulstelzer.iqtest
Publisher
InnoMobile GmbH
Publisher country
Germany
Content rating
Everyone
IQ Test Brain Training Riddles 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 IQ Test Brain Training Riddles'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 IQ Test Brain Training Riddles 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 IQ Test Brain Training Riddles 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 |
|---|---|---|
| France | Games › TriviaFree | #61 |
| Germany | Games › TriviaFree | #89 |
| Brazil | Games › TriviaFree | #72 |
 United Arab Emirates | Games › TriviaFree | #185 |
Apps near IQ Test Brain Training Riddles on the chart
Games › Trivia Free, around #61.
Ratings
Google Play, worldwide.
Rating
4.0 ★
4.7k ratings
Measured
Ratings
4.7k
Measured
Written reviews
101
Measured
About IQ Test Brain Training Riddles
- IQ Test completely in English and free to play
- Brain booster with different tasks
- Scientifically developed by students of the University of Rostock (Germany)
- With excercise mode: Play all quiz tasks with solutions and explanations again
- Many more great functions for the IQ Test are still planned
- Compare your result with friends
- In future: WIth Multiplayer Party Mode and quiz elements
---------------------------------------------------------------
Why should you take part of this IQ Test?
---------------------------------------------------------------
Influenced by WAIS-IV (Wechsler Intelligence Test for Adults) and research by students of the University of Rostock, the IQ Test includes the following tasks:
- Perceptive reasoning
- Processing speed
- working memory
- speech understanding
- Number understanding
- Logical thinking
These categories are queried in the IQ Test in various categories, including sample groups, dice test, remember pictures, number series, matrix test, estimate, order numbers and more!
Start your IQ Test now and compare with your friends! The first quiz has around 100 tasks, so take some time and start your IQ Test today! The test is free, but you can get extra features. This is a brain booster game.
---------------------------------------------------------------
With exercises
---------------------------------------------------------------
This app not only includes many IQ tests, you find also exercises and daily riddles to increase your brain power. You can solve daily one riddle of an IQ test.
---------------------------------------------------------------
What is an IQ Test?
---------------------------------------------------------------
An IQ test is used to show how "intelligent" you are in relation to other people. But what is intelligence? This is not a defined term and so intelligence is just what an IQ test measures. Therefore, different IQ tests can not be compared, just the same test, and it simply tells you if you have solved the tasks better (over IQ 100) or worse (under IQ 100) than the average. So do not take the IQ that seriously, just test how you cut off compared to others! This app is also developed for brain training.
---------------------------------------------------------------
Brain booster and brain training
---------------------------------------------------------------
To improve your brain performance, we have added numerous tasks and exercises in the IQ Test app that will increase your performance. So if you are about to take an employment test or a psychological test, you can use it to train your brain and get a better result. The tasks are not only in the IQ test area, but also help to improve logical thinking, math and more.
---------------------------------------------------------------
Information about in-app purchases and subscriptions
---------------------------------------------------------------
There is a Pro subscription in the app. The following notes app
- Brain booster with different tasks
- Scientifically developed by students of the University of Rostock (Germany)
- With excercise mode: Play all quiz tasks with solutions and explanations again
- Many more great functions for the IQ Test are still planned
- Compare your result with friends
- In future: WIth Multiplayer Party Mode and quiz elements
---------------------------------------------------------------
Why should you take part of this IQ Test?
---------------------------------------------------------------
Influenced by WAIS-IV (Wechsler Intelligence Test for Adults) and research by students of the University of Rostock, the IQ Test includes the following tasks:
- Perceptive reasoning
- Processing speed
- working memory
- speech understanding
- Number understanding
- Logical thinking
These categories are queried in the IQ Test in various categories, including sample groups, dice test, remember pictures, number series, matrix test, estimate, order numbers and more!
Start your IQ Test now and compare with your friends! The first quiz has around 100 tasks, so take some time and start your IQ Test today! The test is free, but you can get extra features. This is a brain booster game.
---------------------------------------------------------------
With exercises
---------------------------------------------------------------
This app not only includes many IQ tests, you find also exercises and daily riddles to increase your brain power. You can solve daily one riddle of an IQ test.
---------------------------------------------------------------
What is an IQ Test?
---------------------------------------------------------------
An IQ test is used to show how "intelligent" you are in relation to other people. But what is intelligence? This is not a defined term and so intelligence is just what an IQ test measures. Therefore, different IQ tests can not be compared, just the same test, and it simply tells you if you have solved the tasks better (over IQ 100) or worse (under IQ 100) than the average. So do not take the IQ that seriously, just test how you cut off compared to others! This app is also developed for brain training.
---------------------------------------------------------------
Brain booster and brain training
---------------------------------------------------------------
To improve your brain performance, we have added numerous tasks and exercises in the IQ Test app that will increase your performance. So if you are about to take an employment test or a psychological test, you can use it to train your brain and get a better result. The tasks are not only in the IQ test area, but also help to improve logical thinking, math and more.
---------------------------------------------------------------
Information about in-app purchases and subscriptions
---------------------------------------------------------------
There is a Pro subscription in the app. The following notes app
What's new in 14.6.5
Thank you for all your support, numerous messages and reviews, only this way the IQ Test app will get better and better. What's new?
- More improvements: We have fixed more bugs!
- More improvements: We have fixed more bugs!