This app converts integer and fractional numbers between bases 2 and 16, explaining each step of the conversion process. It offers direct conversions between specific bases and prioritizes minimizing numerical error for fractions.






9+ similar apps compared and reviewed
Octo is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.






This app converts integer and fractional numbers between bases 2 and 16, explaining each step of the conversion process. It offers direct conversions between specific bases and prioritizes minimizing numerical error for fractions.








This app facilitates quick conversions between various number systems including decimal, binary, hexadecimal, and octal. It also supports signed integer conversions, text encoding, IP address calculations, and subnetting tools. Perform bitwise operations like AND, OR, and XOR with ease.


An educational app designed to introduce young learners to numbers 0 through 9. It offers interactive activities for tracing, counting, and understanding basic number concepts. The app is accessible offline and free from ads or in-app purchases.


Learn and practice converting between binary, decimal, and hexadecimal number systems through engaging gameplay. This educational tool offers five difficulty levels and tracks your progress with statistics on correct answers.




This app offers a versatile conversion tool for number systems like decimal, hexadecimal, and binary, alongside ASCII conversions. It also includes a random number generator and a comprehensive suite of metric conversions for everyday measurements. Users can save notes and favorite ASCII characters.




Easily switch numbers between various bases, from binary to base 62. Ideal for developers, students, and math enthusiasts needing quick and reliable conversions with fractional parts. Features include instant common base conversions, custom base support, and conversion history.