250+ iOS apps curated and reviewed
With an average user rating of 4.7★, the dec opcodes category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (3) | No | Yes | Jul 2026 | |
| 2 |  | Free | 4.8★ (6) | No | Yes | Oct 2026 | |
| 3 |  | Free | 5.0★ (1) | No | Yes | Oct 2026 | |
| 4 |  | Free | 5.0★ (4) | No | Yes | Nov 2026 | |
| 5 |  | Free | — | No | No | Oct 2026 | |
| 6 |  | Free | 5.0★ (6) | No | No | Nov 2026 | |
| 7 |  | Free | 4.1★ (15) | Yes | No | Oct 2026 | |
| 8 |  | Free | 5.0★ (3) | No | No | May 2026 |
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.
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.
This app simulates the KIM-1 single-board computer from 1976, featuring a 6502 microprocessor. Users can enter and run machine code, with programs starting at 0x0200 and a virtual tape for saving work. It includes built-in instructions for guidance.
