DEC Opcodes vs Lingo Games
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DEC Opcodes
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.
- Instruction set reference
- Historical context and photos
- System specifications
- Interactive assembly lessons
- Search and filtering
- Customizable themes
- Simple assembler
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Dec Opcodes – DEC Architecture Reference Before the microprocessor, there was DEC. The minicomputers built by Digital Equipment Corporation didn't just advance computing - they defined it. Unix was born on a PDP-7. Spacewar! ran on a PDP-1. The field of Artificial Intelligence was born on the PDP-10. The VAX powered universities and research labs worldwide for a generation. DecOpcodes puts the complete instruction sets of these legendary machines in your pocket. Five iconic architectures covered: PDP-1 (1960) · PDP-8 (1965) · PDP-10 (1966) · PDP-11 (1970) · VAX (1977) For every instruction: • Full description of what the instruction does • Octal and hex encoding • Flags affected • Addressing modes, word count, and cycle counts • Assembly code examples and implementation notes But there is a lot more than just dry opcodes: • Complete system specifications and register architecture • Historical context and cultural impact • Archival photographs - front panels, system cabinets, and more • Notable installations and the systems they powered • Architecture variants and successors • Interactive lessons on assembly language and console operations (ideal if you have an PiDP emulator) Built for exploration: • Search across all systems instantly • A simple assembler for PDP-1, -8 and -11 code • Filter by instruction category • Sort alphabetically or by category • Favorite instructions for quick reference Beautifully designed: • System-specific accent colours • Five themes including Terminal green and Blinkenlights orange • Full Dark Mode support From the 18-bit simplicity of the PDP-1 to the 32-bit sophistication of the VAX, DecOpcodes is a fascinating and interactive journey through the machines that made modern computing possible. All features are free and unlocked. If you like the app you can always leave a nice review or tip the developer!
Lingo Games
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Bring language play into your day with Lingo Games, the iPhone and iPad companion to lingogames.net. Explore a collection of online HTML5 games focused on language practice. Browse the latest catalog, look through game categories, or search for something you want to play. Open a game in the app and enjoy a quick break with words. FIND YOUR NEXT GAME Browse games and categories in a clear, colorful catalog. Search by name and discover more from the Lingo Games website. KEEP YOUR FAVORITES CLOSE Save favorite games on your device and return to your recently played games when you want another go. PLAY ON IPHONE AND IPAD Enjoy a layout that adapts to your screen, with a dedicated player for online HTML5 games. TRY A QUICK WORD MATCH Practice with the built-in Word Match activity, including when you are offline. Pair words in Spanish, French, Japanese, Chinese and English and keep a little language practice close at hand. PRIVACY CHOICES Find the privacy policy and available advertising privacy choices in the app. Favorites and recent-game history are stored on your device. No Lingo Games account is required. An internet connection is required to load the website catalog and play its online games. The built-in Word Match activity is available offline. Online game availability and content may change as the website is updated. The app contains advertising for eligible adult users; children and teenagers are not shown in-app ads. Available advertising privacy options depend on your region. Website: https://lingogames.net Support: contact@lingogames.net
Screenshots
Verdict
The clearest difference is in-app purchases: Lingo Games at none against DEC Opcodes's 1. Lingo Games also leads on iOS requirement (16.0 vs 18.0). DEC Opcodes's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. DEC Opcodes sells 1 one-off in-app purchase. Lingo Games asks for nothing beyond the download.
| Parameter | DEC Opcodes | Lingo Games |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 8 days | — |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | John Kennedy | Maduka Viraj Chamara Pathiranage |
In-app purchases
DEC Opcodes
- Buy Me a Coffee$0.99
Lingo Games
No in-app purchases
Questions
Is DEC Opcodes free?
Is Lingo Games free?
Do DEC Opcodes or Lingo Games have ads?
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