Safe handling of binary numbers and hexadecimals is essential in computer science. With the app you can train this in a playful way in four levels of difficulty. From 4 bits to 16 bits. In addition, mental arithmetic is also trained very well.
Updated on
28 Feb 2026
Educational
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.