Battery Coach vs MainframeMonitor

Battery Coach helps you build charging habits that protect your battery's long-term health — right on your iPhone. • Set a charge target (default 80%) and get a gentle alert when you reach it • A low-battery nudge when you're under 20% and Low Power Mode isn't on • A heads-up when your phone is overheating during charging • A home screen widget showing your battery level and time-to-target at a glance • A Live Activity that follows your charge on the Lock Screen and Dynamic Island • A weekly report with simple, rule-based coaching based on your actual charging history Your battery and charging data stay on your device — there's no account and no server. Battery Coach shows a small banner ad, served through Google AdMob, to keep the app free; see our privacy policy for details on how that works and how to manage your ad choices.

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.