Showing 241–260 of 1,000 ranked alternatives.
Peter Schorn
Practice memory tasks and track progress
Practice memory tasks involving audio and visual stimuli to improve fluid intelligence. Complete 2-back challenges that require recalling previous letters or images. Track progress over time and review performance metrics.
Krishna Patidar
Mine transactions, build blocks, connect peers
Create and secure a Bitcoin wallet using seed phrases. Send and receive transactions with other users. Participate in mining challenges to validate transactions and earn rewards. View blocks being added to the blockchain in real-time.
Florida International University Online
Talk, play, and grow together
Track bilingual development with interactive activities and progress reports. Practice responsive conversations in two languages. Receive guidance on fostering language skills and cultural awareness through daily engagement.
Nonce Lab Inc.
Learn to manage Bitcoin wallets securely
Receive and view test bitcoin balances for practice. Send test bitcoins to understand transaction processes. Learn about bitcoin wallet usage and security features. Store private keys securely for self-custody education.
Peter Schorn
Play the classic text adventure game.
The app allows users to play the text-based adventure game «Dungeon». This game originated on PDP 11 systems and runs on a stripped-down RT11 operating system.
Shahbaz Khan
C++ with interactive lessons and instant quizzes
C++ from beginner to advanced with interactive lessons and live code examples. Take instant quizzes, track progress with streaks, and use a 24/7 AI coding assistant. Access 180+ lessons covering basics, OOP, STL, algorithms, and data structures.
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