1. Home
  2. 📚 Education
  3. Opcodes
  4. Similar apps

Best Opcodes alternatives: apps like Opcodes - retro CPU reference

8+ similar apps compared and reviewed

4.7 avg rating
8 free apps
Updated November 2026
Opcodes - retro CPU reference
📚 Education

Opcodes is great, but it's not the only option. Explore 8+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Opcodes

iAltair#3

iAltair by Peter Schorn

Vintage computing made easy
Worth Considering
📚 Education
4.8(22 ratings)
Free
iAltair screenshot 1
iAltair screenshot 2
iAltair screenshot 3
iAltair screenshot 4

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.

More apps like Opcodes

4
Little Man Computer
Little Man Computer
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.

Computer architecture simulationAssembly language learningVon Neumann architecture model
📚 Education
(6)
free
Compare with Opcodes
5
The Assembler
The Assembler
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.

Learn Assembly programmingUnderstand binary operationsCreate pixel art on registers
📚 Education
(10)
free
Compare with Opcodes
6
Digital Electronics Guide
Digital Electronics Guide
Digital Electronics Guide
Digital circuits made simple
Free

This app serves as a comprehensive reference for digital electronics, covering essential theory and practical guides. It's designed for students, engineers, and hobbyists to learn and prototype digital circuits with ease. Features include detailed information on logic gates, IC families, and various digital components.

Logic gate tutorialsIC reference data (TTL 7400, CMOS 4000)Digital circuit design and prototyping
📚 Education
(2)
ad-supported
Compare with Opcodes
7
Hacktivate: Capture the Flag
Hacktivate: Capture the Flag
Hacktivate: Capture the Flag
Cybersecurity challenges
Free

Engage in a cybersecurity challenge with 240 missions across a global map, utilizing real hacking techniques. Learn skills from basic ciphers to advanced firewalls, with tutorials and scalable difficulty.

240 graded cybersecurity missionsReal-world hacking techniquesHacker's Toolbox (hashing, encryption, ciphers)
📚 Education
(33)
free with in-app purchases
Compare with Opcodes
8
EE ToolKit
EE ToolKit
EE ToolKit
Electronics Engineering
Free

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.

Over 160 electronic applicationsMulti-functional keyboardColor code and SMD code tools
📚 Education
(1.4K)
free with in-app purchases
Compare with Opcodes
  1. Home
  2. 📚 Education
  3. Opcodes
  4. Similar apps