MainframeMonitor

A retro mainframe for your iPhone: live CRT monitor in glowing green or amber phosphor, a home screen widget and classic games.

Turn your iPhone into a mainframe from the golden age of computing.

MAINFRAME MONITOR shows your device's live stats wrapped in a nostalgic CRT console – complete with phosphor glow, scanlines, a boot sequence and satisfying key clicks. Choose between classic GREEN or warm AMBER, each with its own matching app icon.

■ LIVE SYSTEM MONITOR • Battery, CPU, memory and free storage • Uptime, network status and device info • All in real time, right on the glowing screen

■ HOME SCREEN WIDGET • Keep your key system stats always in view • In the same retro CRT style

■ REAL MAINFRAME FEELING • Authentic boot sequence on launch • Scanlines, glow and CRT effects • Terminal-style PF function-key controls

■ HIDDEN CLASSIC GAMES • Snake, Hamurabi, Void Patrol and Bagels • Text-based retro games, just like on the old terminals

■ FAIR & PRIVATE • Completely free • No ads, no trackers, no accounts • All data stays on your device

Whether as a stylish system monitor, a home screen widget or a hands-on piece of computing history – MAINFRAME MONITOR brings back the charm of the old data centers.

Made with attention to detail. Be sure to check out my other apps right inside the app.