Data structures and algorithms guides

Practical guides to learning data structures and algorithms for coding interviews, from the team behind Algo Mind. Every fact carries the date it was checked. Algo Mind is an iOS and Android app that teaches data structures and algorithms for coding interviews, with step-by-step visual walkthroughs synced to real code in Python, Java, Kotlin and C++.

• Best Apps to Learn Data Structures & Algorithms on Your Phone (2026)

  We compared 9 apps and 2 websites for learning data structures and algorithms on a phone: who each suits, how you practise, and prices as of October 2026.

  21 October 2026