MainframeMonitor
Retro CRT System Monitor
About
Transform your iPhone into a vintage mainframe with a nostalgic CRT display. Monitor live system stats like battery, CPU, and memory, all within an authentic retro console experience. Includes hidden classic text-based games.
What's New in MainframeMonitor
1.5
September 30, 2026
Version 1.5 makes Mainframe Monitor more personal than ever. Customize your console with selectable panels, flexible ordering, and practical presets. Show or hide the Syslog as needed, and restore the original layout at any time. Also new: an advanced Temporal Reference with local time, UTC, Unix epoch, and Julian date, plus live display geometry and motion sensor data. Monitor pitch, roll, yaw, G-forces, and rotation rates—all presented in an authentic mainframe style.
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FAQ
What is MainframeMonitor?
MainframeMonitor is a free iOS app that transforms your device into a vintage mainframe computer. It displays live system statistics on a nostalgic CRT screen with authentic retro effects and includes hidden classic text-based games.
Does MainframeMonitor have ads?
No, MainframeMonitor is completely free with no ads, no trackers, and no accounts required. All your data stays on your device.
What system stats can MainframeMonitor show?
MainframeMonitor displays live battery level, CPU usage, memory usage, free storage, device uptime, network status, and other device information.
Can I use MainframeMonitor on my Home Screen?
Yes, MainframeMonitor offers a home screen widget that allows you to keep your key system stats visible in the same retro CRT style.
What classic games are included in MainframeMonitor?
MainframeMonitor includes hidden text-based retro games such as Snake, Hamurabi, Void Patrol, and Bagels, reminiscent of old terminal games.
What devices does MainframeMonitor support?
MainframeMonitor is supported on iPhone and iPad devices.
How often is MainframeMonitor updated?
The latest version, 1.5, was released on September 30, 2026, indicating regular updates from the developer.
What is the age rating for MainframeMonitor?
MainframeMonitor has an age rating of 4+, making it suitable for a wide range of users.
