Let's learn the knowledge of topic blockchain with 30 seconds quizzes!

- Easy operation
- Various questions
- Number of questions 100 or more!
- Built-in blockchain simulator
- Compatible with a wide range of devices with iOS 9.3 or later
- iPod, iPhone, iPad
- Various settings Dark / Lite theme


- Easy operation
Just answer by clicking on the 4 option buttons to the 30 seconds limit questions !!

- Various questions
It covers from basics to difficult problems that require calculation.
You can understand why blockchain is paying attention.

- Number of questions 100 or more!
Although many questions are included, it is not a burden because it is subdivided. Since it is a stage of 10 questions, you can answer quickly to a quiz in the free time.

- Built-in blockchain simulator
Blockchain technology seems difficult at first glance.
With a simulator, we made it visible by eye.
The simulator actually builds a blockchain inside.
In other words, it generates a transaction, performs a hash calculation, executes the PoW consensus algorithm, performs mining work, and builds a blockchain.
Furthermore, we actually set "difficulty" and visualize it.
You can visually understand how the technical items for understanding the blockchain are intertwined and working.

- Quiz corresponding to the latest distribution news
Regularly quizzes will be delivered to the technical trends of blockchain updated daily.
By answering the latest quiz to be delivered, you can automatically follow the latest blockchain technology.

- Easy user interface and animation
Since it is a card format with animation, there is no annoying operation.
Since necessary information such as a progress bar is visualized, it can be understood intuitively.

- Compatible with a wide range of devices with
Available on iOS 9.3 or higher devices
It works on iPod, iPhone, iPad.
We check the operation on Portrait / Landscape screen.

- Various settings
Dark / Lite theme and color
You can change the theme by day or night, or with your choice.

- Available in multiple languages
(currently English/Japanese).