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Device Monitor: iDevice app icon

Device Monitor: iDevice

Device Monitor: iDevice is the ultimate tool to analyze, optimize, and take full control of your iPhone or iPad. Access detailed system information, monitor real-time performance metrics, and test every sensor with advanced diagnostics — all from one powerful app.

Get it on the App Store
Version 1.3.0 Updated 2026-09-08 Requires iOS 15.0 Size 13 MB Price Free

What it does

Get in-depth details about your CPU, RAM, storage capacity, battery health, display specifications, camera capabilities, installed sensors, and network connectivity.

  • Real-Time Performance Monitoring

Visualize resource usage with dynamic, live-updating charts. Track CPU load, memory pressure, disk read/write speed, and thermal state in real time.

  • Hardware & Sensor Testing

Run diagnostics on accelerometer, gyroscope, magnetometer, barometer, GPS accuracy, proximity sensor, ambient light sensor, and microphone input levels.

  • One-Tap RAM Optimization

Free up memory and boost system responsiveness with a single tap. See immediate before-and-after results.

  • Home Screen Widget

Add a customizable widget to your home screen to track CPU usage, RAM consumption, and available storage at a glance — no need to open the app.

  • Export to PDF

Generate detailed, professional PDF reports of your device status. Share reports via email, AirDrop, or save them for your records.

  • WHO IS IT FOR ---
  • Power users who want to understand exactly what their device is doing
  • Developers testing app performance and hardware capabilities
  • Anyone who wants to keep their iPhone or iPad running at peak performance
  • Tech enthusiasts who love diving into system specifications
  • DEVICE COMPATIBILITY ---

Questions people ask about Device Monitor

Does it need an account or internet?
No to both. Everything is read from the device itself.
What can it actually measure?
Whatever the iPhone's own sensors expose: level and compass, magnetometer, barometer, gyroscope, ambient light, microphone level, battery health and charge cycles, storage, memory, network and the screen's dead-pixel test.
Is the metal detector real?
It reads the magnetometer, the same sensor the compass uses. It reacts to ferrous metal and to magnets. It is not an industrial detector and it will not find gold.
Is the decibel reading accurate?
It is the microphone's reading, uncalibrated. Good for comparing one room to another, not for a legal noise measurement.
Does it change anything on my phone?
No. It reads and reports; it does not clean, optimise or modify anything.

What's new in 1.3.0

• Diagnostics, sensor states and hardware labels are now fully translated into 33 languages. • Ads appear less often and never right after finishing a test. • Small fixes and polish across the monitor dashboard.

Privacy and support

Device Monitor works offline and does not require an account. Read the privacy policy and the terms for this app, or write to us if something is wrong.