Best Opcodes Apps

249+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated October 2026

With an average user rating of 4.1★, the opcodes category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.

Compare top Opcodes Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Opcodes - retro CPU referenceOpcodes - retro CPU referenceFree4.8★ (6)NoYesSep 2026
2DEC OpcodesDEC OpcodesFree5.0★ (3)NoYesJul 2026
3Rabby Wallet - Crypto & EVMRabby Wallet - Crypto & EVMFree3.5★ (1.3K)NoYesOct 2026
4DeBank Crypto & DeFi PortfolioDeBank Crypto & DeFi PortfolioFree1.9★ (164)NoYesSep 2026
5Nice FlowersNice FlowersFree—NoNoJul 2026
6Fast QR, Bar & UPC ScannerFast QR, Bar & UPC ScannerFree5.0★ (2)NoYesJul 2026
7Lighting Scanner: Scan QR CodeLighting Scanner: Scan QR CodeFree4.8★ (442)YesYesOct 2026
8WhisperCodeWhisperCodeFree4.9★ (25)NoNoOct 2026

Top Picks for Opcodes

Opcodes - retro CPU reference#1

Opcodes - retro CPU reference by John Kennedy

Decades of nerd knowledge
Editor's Choice
📚 Education
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.

DEC Opcodes#2

DEC Opcodes by John Kennedy

Reference for DEC computers
Strong Contender
📚 Education
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.

Rabby Wallet - Crypto & EVM#3

Rabby Wallet - Crypto & EVM by OPCODE LABS PTE. LTD.

Explore Web3: Token, NFT, DeFi
Worth Considering
🔧 Utilities
3.5😞(1.3K ratings)
FreeIn-App Purchases
Rabby Wallet - Crypto & EVM screenshot 1
Rabby Wallet - Crypto & EVM screenshot 2
Rabby Wallet - Crypto & EVM screenshot 3
Rabby Wallet - Crypto & EVM screenshot 4
Rabby Wallet - Crypto & EVM screenshot 5

Manage your cryptocurrency portfolio across all EVM chains in a single interface. Discover popular Web3 websites and connect to any dApp seamlessly. This wallet simplifies your decentralized finance and NFT exploration.

What We Love

  • 🚀 Fast and efficient
  • 🔒 Secure wallet
  • 👍 Great UX
  • 👍 Excellent portfolio tracking
  • 👍 Supports multiple blockchains

Room to Improve

  • 🐛 Frequent crashes and freezing
  • 🐛 Syncing issues with wallet balances
  • 👎 Deteriorating UI/UX with recent updates
  • 👎 Overly complex navigation and extra steps for basic tasks
  • 👎 Lacks support for certain features (e.g. Pulsechain, mobile wallet connect)

More Opcodes apps to explore

FAQ about Opcodes

What are the best opcodes apps for iPhone?
Opcodes - retro CPU reference tops our opcodes apps ranking as of October 2026, with a 4.8-star average from 6 App Store ratings, and it's free to download.
Yes — 20 of the top opcodes apps we rank are free to download, including Opcodes - retro CPU reference and DEC Opcodes.
Opcodes - retro CPU reference has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ opcodes apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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