8051 Tutorial vs Z80CPM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
8051 Tutorial
Learn 8051 microcontroller programming in C with this comprehensive tutorial. It covers architecture, assembly, and C language, featuring 11 practical projects. An optional Pro version offers additional projects with source code and advanced features.
- 8051 architecture review
- 8051 assembly mnemonics
- 8051 C language programming
- 11 practical projects
- Baud calculator
- Pro version with extra projects and source code
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This app is a 8051 tutorial based on C language. It is suitable for hobbyist or engineering students. Features • 8051 architecture review • 8051 asm mnemonics • 8051 C language • 11 projects including LED, buzzer, key switch, external interrupt, 7-segment display, 8x8 led matrix, timer (mode 0,1 ) • Baud calculator Features in Pro • Extra 11 projects with source code • Projects with complete uVision project and document • Create C source code of timer mode 0,1,2 • Data pattern code generator of 8x8 LED matrix All product names, trademarks and registered trademarks are property of their respective owners. All company, product and service names used in this app are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.
Z80CPM
Experience the classic CP/M operating system on your iOS or Mac device with a full Z80 processor emulator. Run authentic CP/M software, including operating systems, word processors, programming languages, and text adventures. Works offline with support for multiple disk images.
- Full Z80 emulation
- VT100 terminal support
- Multiple disk image mounting
- Offline functionality
- Native Mac support
- Downloadable CP/M disk images
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RomWBW CP/M brings the classic CP/M operating system to your iPhone, iPad, and Mac with a full Z80 processor emulator. FEATURES • Full Z80 Emulation - Accurate instruction emulation runs authentic CP/M software • VT100 Terminal - ANSI escape sequence support for text adventures and productivity apps • Multiple Disk Support - Mount up to 4 disk images simultaneously • Download Disk Images - Fetch CP/M disk images directly from the RomWBW project • Works Offline - Downloaded disk images are stored locally • Native Mac Support - Runs natively on macOS via Mac Catalyst CLASSIC SOFTWARE Run the software that defined personal computing: • Operating Systems: CP/M 2.2, CP/M 3, ZSDOS, NZCOM, ZPM3 • Word Processing: WordStar • Programming: Turbo Pascal, Microsoft BASIC • Text Adventures: Zork, Adventure, Hitchhiker's Guide to the Galaxy • Databases: dBASE II • And thousands more CP/M programs GETTING STARTED 1. Open Settings and download a disk image (CP/M 2.2 recommended) 2. Select the disk image for Unit 0 3. Press Play to start the emulator 4. Press 0 at the boot menu to boot from disk BUILT ON ROMWBW This emulator is built on the RomWBW HBIOS platform, the same firmware used by real retro Z80 hardware projects. Disk images are downloaded from the official RomWBW project and include freely distributable CP/M software. TECHNICAL DETAILS • 80x25 character terminal display • hd1k disk format (8MB per slice, 64MB per disk) • Hardware keyboard support • Portrait and landscape orientation Perfect for retrocomputing enthusiasts, computer history education, or anyone who wants to experience the operating system that launched the personal computer revolution.
Screenshots
Verdict
The clearest difference is in-app purchases: Z80CPM at none against 8051 Tutorial's 10. Z80CPM also leads on update cadence (every 10 days vs every 3 months). 8051 Tutorial's advantage is iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads 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. 8051 Tutorial sells 10 one-off in-app purchases. Z80CPM asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for 8051 Tutorial against 5.0 for Z80CPM. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
8051 Tutorial ships an update every 3 months, Z80CPM every 10 days. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.
| Parameter | 8051 Tutorial | Z80CPM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Aaron Wohl |
Customer experience
8051 Tutorial
Z80CPM
In-app purchases
8051 Tutorial
- 24L01$0.99
- 18B20$0.99
- OLED$0.99
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- Unlock Pro features$1.99
- ESP8266$1.99
- BMP180 project$1.99
- DHT11 project$1.99
- DHT22 project$1.99
- BMP280 project$1.99
- Wireless automation (BT)$1.99
Z80CPM
No in-app purchases









