SCPI Commander vs u64
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SCPI Commander
Control LXI enabled instruments directly from your device. Send SCPI commands, automate measurements with a built-in script engine, and process results. Easily manage and export instrument data, logs, and screen dumps.
- Connect to LXI instruments
- Send SCPI commands
- Built-in script engine
- Automate measurements
- Process measurement results
- Export data and logs
- Instrument identity inquiry
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This app will connect to any LXI enabled instrument. You can control and get data back using for example SCPI (Standard Commands for Programmable Instruments) or any other kind of commands that can be send as plain ASCII over socket. Built-in script engine to automatize measurement and process the result. Features * Connected instrument can be added as favorite to make connection easier next time. * Automatically enquires the identity of the connected instrument. * Favorites can be exported as a CSV file. * Interactive IO, send and see the results immediately * Logging off a number of measurement. * Easy export off the session from both interactive io and logging measurement . * Ability to change the time-out value * Ability to change how much data can be read back. * Quick access to the instrument web-page * Quick access to common SCPI commands. * During logging, possible to pause and step through measurements. * Extensive help for interactive IO and logging measurement * Script Engine to automatize measurement * Process the measured values * Statistical calculations (Mean, Median, Standard deviation) * Export Statistical, binary blocks etc as CSV. * Easy to get screen-dump from connected instrument, save, print, view and zoom * Help for all screens, including all commands * Possibility to print favorites, logs and picture (AirPrint enabled printer)
u64
Remotely manage your Ultimate64, Ultimate II+, or Commodore 64 Ultimate hardware from your iPhone. Control device functions, mount disk images, play music, and edit memory wirelessly.
- Remote device control (reset, reboot, pause)
- Load PRG, cartridge, SID, and MOD files
- Mount/unmount D64, G64, D71, G71, D81 disk images
- Memory editor with peek/poke
- Send text commands via keyboard buffer
- Access and modify device settings
- Real-time drive state monitoring
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Control your Ultimate64, Ultimate II+, or the new Commodore 64 Ultimate directly from your iPhone. Mount disks, play SID music, manage files, and configure your device — all wirelessly over your local network. DEVICE CONTROL Reset, reboot, pause, resume, and power your machine remotely. Load PRG programs, cartridge files, SID tunes, and MOD audio instantly. DISK MANAGEMENT Mount and unmount D64, G64, D71, G71, and D81 disk images without leaving your chair. DEVELOPMENT TOOLS Peek and poke memory addresses with the built-in memory editor. Send text commands through the keyboard buffer for automation and testing. CONFIGURATION Access and modify device settings. Save configurations to flash memory for permanent storage. STATUS MONITORING View real-time drive states, mounted images, and device information with instant feedback. Connects via Ethernet or Wi-Fi on your local network. Auto-discovers compatible devices. Perfect for retro gaming, C64 development, digital preservation, and educational use. Requires Ultimate64, Ultimate II+, Ultimate II, or Commodore 64 Ultimate hardware with network connectivity and REST API support.
Screenshots
Verdict
The clearest difference is price: SCPI Commander at Free against u64's $0.99. SCPI Commander also leads on update cadence (weekly vs every 3 months). u64's advantage is rating (5.0 vs 3.0). On ratings volume, 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
SCPI Commander is free to download; u64 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
u64 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
SCPI Commander ships an update weekly, u64 every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | SCPI Commander | u64 |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Augustsson | Marcin Spoczynski |
Customer experience
SCPI Commander
u64
In-app purchases
SCPI Commander
No in-app purchases
u64
No in-app purchases









