Z80CPM vs KVM Client
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.
KVM Client
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KVM Client is a fast, fully native app for open-source IP-KVMs. See the screen of another computer and use its keyboard and mouse from your iPhone, iPad or Mac — from power-on and BIOS to the desktop. WORKS WITH • Luckfox PicoKVM and JetKVM • PiKVM, BliKVM and Geekworm KVMs • Sipeed NanoKVM and NanoKVM-Pro • TinyPilot The device type is recognized automatically, and Search the network finds your KVMs for you. FEELS LIKE SITTING IN FRONT OF IT • Hardware-decoded video over WebRTC, H.264 or MJPEG • The Mac window takes the exact shape of the remote screen • Absolute pointer mapped to the real picture, even when zoomed EVERY KEY, EVERY SHORTCUT • On the Mac, ⌘Tab, ⌘Q and friends go to the remote computer, not to macOS • Positional keys: the remote computer keeps its own layout (AZERTY, QWERTZ…) • Paste text as keystrokes in 20 PC keyboard layouts • Ctrl+Alt+Del and other combos one click away MADE FOR TOUCH • Drag to scroll, tap then drag to select or move windows • Pinch to zoom up to 6×, two-finger tap to right-click • Virtual keyboard with Esc, Tab, sticky Ctrl/Alt/Win, arrows and F1–F12 • Hardware keyboards and iPad trackpads work natively ANYWHERE, PRIVATELY • Tailscale and ZeroTier addresses are learned from the device and tried automatically • Passwords stay in the Keychain; no account, no tracking, no data collected • Open source under the MIT license An IP-KVM device is required. KVM Client is not affiliated with the makers of the devices above.
Screenshots
Verdict
The clearest difference is iOS requirement: Z80CPM at 15.0 against KVM Client's 17.0. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Z80CPM | KVM Client |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Aaron Wohl | Aroneus |
In-app purchases
Z80CPM
No in-app purchases
KVM Client
No in-app purchases









