Z80CPM vs Sensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Sensor
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SensorStream turns your iPhone and Apple Watch into real-time motion sensor tools. Select a device, choose the sensor streams you need, and view smooth live graphs with sampling- rate information. Record sessions locally and export the captured data as CSV files for analysis, research, testing, or development. Features include: • iPhone and Apple Watch sensor streaming • Accelerometer and gyroscope data • Gravity and magnetic-field measurements • Pitch, roll, yaw, quaternions, and rotation matrices • Live sampling-rate display • Selectable sensor channels • Smooth, full-width graphs • Local recording with pause and resume controls • CSV file sharing and deletion • Light and dark appearance support Available streams depend on the selected device and its hardware capabilities. SensorStream excludes HealthKit-dependent biometric data.
Screenshots
Verdict
The clearest difference is device support: Z80CPM at 4 against Sensor's 2. Z80CPM also leads on iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Z80CPM | Sensor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Aaron Wohl | Yerim Lab LLC |
In-app purchases
Z80CPM
No in-app purchases
Sensor
No in-app purchases









