Best Dec Opcodes Apps & Games

250+ iOS apps & games curated and reviewed

4.6 avg rating

20 free apps & games

Updated September 2026

With an average user rating of 4.6★, the dec opcodes category is one of the App Store's strongest. Browse all 250+ apps and games we track, sorted so the most loved ones surface first.

Compare top Dec Opcodes Apps & Games (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	DEC Opcodes	Free	5.0★ (3)	No	Yes	Jul 2026
2	Opcodes - retro CPU reference	Free	4.8★ (6)	No	Yes	Sep 2026
3	CMD: SSH, Terminal, DOS, Ping	Free	5.0★ (76)	Yes	No	Sep 2026
4	Digital Program Master	Free	—	No	No	Sep 2026
5	Numerical³	Free	4.8★ (1.3K)	No	No	Sep 2026
6	AI Architecture Render	Free	—	—	No	Aug 2026
7	LocalMind: Ollama & LM Studio	Free	4.7★ (6)	No	No	Sep 2026
8	Subnet Plus: Subnet Calculator	Free	4.6★ (54)	Yes	Yes	Sep 2026

Top Picks for Dec Opcodes

#1

DEC Opcodes by John Kennedy

Reference for DEC computers

Editor's Choice

5.0(3 ratings)

FreeIn-App Purchases

DEC Opcodes screenshot 1

DEC Opcodes screenshot 2

DEC Opcodes screenshot 3

DEC Opcodes screenshot 4

DEC Opcodes screenshot 5

Explore the instruction sets of legendary DEC computers like the PDP and VAX. This app provides detailed information on each instruction, historical context, and interactive lessons. Discover the machines that shaped modern computing.

#2

Opcodes - retro CPU reference by John Kennedy

Decades of nerd knowledge

Strong Contender

4.8(6 ratings)

FreeIn-App Purchases

Opcodes - retro CPU reference screenshot 1

Opcodes - retro CPU reference screenshot 2

Opcodes - retro CPU reference screenshot 3

Opcodes - retro CPU reference screenshot 4

Opcodes - retro CPU reference screenshot 5

Opcodes - retro CPU reference screenshot 6

This app provides a comprehensive reference for retro CPU opcodes, including detailed descriptions, assembly examples, and historical context. It covers eighteen iconic processors and offers features like search, sorting, and filtering for easy exploration of historical computing information.

#3

CMD: SSH, Terminal, DOS, Ping by Sunandan Sekhar Das

SSH client & network tools

Worth Considering

🛠️ Developer Tools

5.0(76 ratings)

FreeAds

CMD: SSH, Terminal, DOS, Ping screenshot 1

CMD: SSH, Terminal, DOS, Ping screenshot 2

CMD: SSH, Terminal, DOS, Ping screenshot 3

This app transforms your mobile device into a professional network diagnostic terminal. It offers essential command-line tools for system administrators, network engineers, and developers to troubleshoot and manage networks on the go.

More Dec Opcodes apps to explore

Digital Program Master

Digital Program Master

Digital Program Master

Learn Code & Improve Skills

The Calculator Without Equal

A powerful and beautifully designed calculator app that offers advanced scientific functions, automatic bracket handling, and a unique no-equals button interface. It integrates seamlessly with iOS features like widgets and keyboards for calculations anywhere.

No equals button interfaceAutomatic bracket handlingFull scientific keypad

AI Architecture Render

AI Architecture Render

AI Architecture Render

by OANA RINALDI

🎨 Graphics & Design

LocalMind: Ollama & LM Studio

LocalMind: Ollama & LM Studio

LocalMind: Ollama & LM Studio

On-Device & Remote LLM Chat

This app provides a private, on-device AI chat experience with zero latency. It functions as a native inference engine and a client for external LLM deployments, offering offline execution and secure connections to your servers.

On-device LLM inferenceOffline AI executionConnects to Ollama & LM Studio

Subnet Plus: Subnet Calculator

Subnet Plus: Subnet Calculator

Subnet Plus: Subnet Calculator

Network Toolkit

Calculate IP subnets with ease on your iPhone or iPad. This tool helps visualize binary and hex information for subnets, aiding in network studies and professional calculations. Save your calculated networks for future reference.

Subnet calculationSave calculated networksBinary and hex display

CompTIA A+ Exam Prep | 2026

CompTIA A+ Exam Prep | 2026

CompTIA A+ Exam Prep | 2026

Security+ Network+ Prep Test

Prepare for CompTIA A+, Network+, and Security+ certifications with adaptive questions and real-world explanations. This app offers personalized learning plans, progress tracking, and timed exam simulations to help you pass your IT exams efficiently.

Adaptive learning questionsPersonalized learning plansTimed exam simulator

free with in-app purchases

A retro 6502 CPU simulator

JDoodle: Code Compiler

JDoodle: Code Compiler

JDoodle: Code Compiler

Compile, Execute Code Anywhere

This mobile IDE and compiler allows you to write, compile, and execute code for over 85 languages on your device. It features AI-powered debugging and code generation, making it a comprehensive tool for programmers on the go. Sync and save your projects with advanced privacy controls.

Compile and execute code for 85+ languagesAI Code Debug & Execute in Interactive ModeAI Code Generator

🛠️ Developer Tools

Roguelite Hacker Simulator

Manage Coding Agents Remotely

This app mirrors your desktop terminal sessions, including AI agent interactions, directly to your iPhone. It provides full keyboard input and multi-terminal support for seamless remote coding management. All processing remains on your desktop, ensuring your data stays secure.

Live desktop terminal mirrorAI agent session managementFull keyboard input

🛠️ Developer Tools

HP Poly Studio Mobile

HP Poly Studio Mobile

HP Poly Studio Mobile

For HP Poly Bluetooth® devices

Personalize and manage your HP Poly Bluetooth devices. Quickly access favorite settings, update device software, and locate lost devices. Ideal for both individual users and enterprise IT management.

Device personalizationQuick access to favorite settingsOver-the-air software updates

Learn Linux Step by Step

Learn Linux Step by Step

Learn Linux Step by Step

Linux Tutorial with Quizzes

Master Linux commands and system administration through structured tutorials and interactive quizzes. This app offers a comprehensive learning path from beginner to advanced levels, available offline in multiple languages.

Master Linux commandsSystem administration learningBeginner to advanced curriculum

MotorData OBD ELM car scanner

MotorData OBD ELM car scanner

MotorData OBD ELM car scanner

Car diagnostic. Dashboard.

Transform your smartphone into a comprehensive car diagnostic tool. Read and clear trouble codes, monitor real-time vehicle performance, and customize your dashboard for a deeper understanding of your car's health. Includes free engine diagnostics with optional advanced features for specific brands.

Deep diagnostics for up to 25 ECUsOne-touch scan for trouble codesDecode DTCs and clear Check Engine Light

free with in-app purchases

Lovable Builder Guide

Lovable Builder Guide

Lovable Builder Guide

Coding & Programming Helper

Explore modern coding approaches with a structured guide to intelligent development tools. Learn to generate code, fix errors, and document projects. Access a catalog of guides with clear instructions and examples.

Structured guides for modern codingCode generation and improvementError fixing and debugging

Sinclair ZX80 / ZX81 & TS1000

Experience early 1980s home computing with this app dedicated to the Sinclair ZX80 and ZX81. It includes a wealth of example software, offering a nostalgic journey into the origins of personal computing.

Sinclair ZX80/ZX81 emulationTimex Sinclair 1000 supportIncludes example software

*Local* Unix terminal (& ssh)

Run Unix commands locally on your iOS device with a powerful terminal emulator. Supports file transfer, editing, scripting with Python and Lua, and network utilities. Integrates with Shortcuts and supports multiple windows for multitasking.

Local Unix terminal emulatorSSH clientFile transfer (scp, curl)

🛠️ Developer Tools

Run C++ Programs

This app offers a powerful coding environment for C++ development. It features syntax highlighting, efficient code layout, and tools for easy navigation and editing. Quickly scan code from physical documents and manage your projects with built-in organization and bookmarking.

Syntax highlightingFast code layout with symbolsCustomizable tools layout

FAQ about Dec Opcodes

What are the best dec opcodes apps & games for iPhone?

DEC Opcodes tops our dec opcodes apps & games ranking as of September 2026, with a 5.0-star average from 3 App Store ratings, and it's free to download.

Are there free dec opcodes apps & games for iPhone?

Yes — 20 of the top dec opcodes apps & games we rank are free to download, including DEC Opcodes and Opcodes - retro CPU reference.

Does DEC Opcodes have ads or in-app purchases?

DEC Opcodes has no ads and offers in-app purchases, according to its App Store listing as of September 2026.

How many dec opcodes apps & games are on the App Store?

We track 250+ dec opcodes apps & games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What DEC architectures does DEC Opcodes cover?

DEC Opcodes covers five iconic DEC architectures: PDP-1 (1960), PDP-8 (1965), PDP-10 (1966), PDP-11 (1970), and VAX (1977). It provides detailed instruction sets, system specifications, and historical context for each.

What kind of information is provided for each instruction in DEC Opcodes?

For every instruction, DEC Opcodes offers a full description, octal and hex encoding, flags affected, addressing modes, word count, cycle counts, and assembly code examples. It also includes implementation notes and historical context.