Knowing your iPhone's uptime—how long it has been running since the last restart (also called boot time or powered-on duration)—is useful for troubleshooting performance issues, checking battery cycle accuracy, monitoring stability after updates, or simply satisfying curiosity about device runtime.

While iOS doesn't show this information prominently in Settings (you'd need Analytics data or third-party tools for easy access), Device Status⁺ makes it straightforward and always accessible.

What is Device Status⁺?

Device Status⁺ (App Store link: https://apps.apple.com/us/app/device-status/id6747854290) is a powerful, free system monitoring app by Space-Time Transformation Technology Co., Ltd. It supports iOS 17.0+, and runs on iPhone, iPad, Mac (M-series chips), Apple Vision Pro, and Apple Watch.

The app provides real-time insights into:

• CPU and memory usage
• Storage details and historical trends
• Battery health, temperature, and capacity
• Network upload/download speeds (with floating window and PiP curve graph)
• Sensor tests (accelerometer, gyroscope, camera, etc.)
• Device temperature and other diagnostics
• And importantly — boot time and uptime (how long since last restart)

Most features are free, with optional in-app purchases (lifetime unlock ~$2.99 or annual ~$0.99) to support development. It holds a stellar 4.9/5 rating, praised for its accurate readings, clean UI, and lack of ads.

How It Displays Uptime / Boot Time

The app includes a dedicated section showing:

• Boot Time: The exact date and time your device was last restarted / powered on.
• Uptime: The elapsed time since that boot (e.g., "3 days, 14 hours, 22 minutes, 45 seconds" or similar formatted display).
• This is presented clearly in the main dashboard or a dedicated "Device Info" / "System" tab.
• Updates are real-time and accurate, with recent fixes improving reliability (e.g., version 1.8.3 in December 2025 addressed an "incorrect boot time display" bug, and version 2.0.3 as of March 2026 maintains stability).

You can check this at a glance without digging through Settings > Privacy & Security > Analytics & Improvements > Analytics Data (where raw uptime logs are buried and hard to parse).

Bonus: Combine it with other stats like temperature, battery health, or network speeds for a full "health check" in one app.

Quick Setup and Viewing Steps

1. Download Device Status⁺ for free from the App Store.
2. Open the app and grant any initial permissions (e.g., for background refresh if you want persistent monitoring).
3. On the main screen or in the navigation menu, look for sections like "Device Info", "System Status", "Boot Time", or "Uptime".
4. The boot time (last restart timestamp) and current uptime duration should appear immediately.
   • No extra setup needed for basic viewing — it's one of the core displayed metrics.
5. Optionally, add the app's Lock Screen or Home Screen widget (if supported for uptime) for quicker access without launching the full app.

Why Use Device Status⁺ for Uptime?

• Simple and direct: No need for complicated terminal commands, Analytics digging, or jailbreaking.
• Accurate and fixed: Developer actively patches display issues (confirmed in update notes).
• All-in-one tool: While checking uptime, you get a bonus overview of CPU, RAM, storage, battery temp, network speeds, and more — far more useful than single-purpose uptime apps.
• Privacy-focused: Data stays on-device; no unnecessary cloud syncing.
• Cross-device consistency: Same interface on iPad/Mac if you use multiple Apple devices.

Whether you're diagnosing random slowdowns (long uptime without restart can sometimes contribute), verifying after an iOS update, or just geek out over stats, Device Status⁺ turns "how long has my iPhone been on?" into a one-tap answer.

Give it a try — it's free, lightweight, and quickly becomes a go-to for anyone who likes peeking under the hood of their iOS device!