Best Opcodes alternatives: apps like Opcodes - retro CPU reference

iAltair

Vintage computing made easy

Free

Experience vintage computing with a simulation of the MITS Altair 8800. Explore old software like CP/M 2 and run programs such as Eliza using built-in BASIC. This self-contained system offers a unique glimpse into early computing history.

Little Man Computer

by SparrowTek LLC

Free

Explore the fundamentals of computer architecture and assembly language with this educational tool. It simulates the von Neumann architecture, offering a hands-on way to grasp how computers process information. Ideal for students and anyone curious about computing.

The Assembler

Learn coding with pixel art

Free

Learn Assembly programming and binary operations by creating pixel art. Each chapter introduces new operations, using 8-bit registers as your canvas to manipulate values and paint an 8x8 image. This app offers a fun, introductory approach to coding fundamentals.

RustAcademy

Learn Rust From Zero to Hero

$5.99

$6.99 | 14% OFF

Learn Rust programming through focused, bite-sized lessons and daily challenges. Master core concepts, algorithms, and syntax with guided practice and code reading. Ideal for developers seeking a deeper understanding of Rust.