Thoroughly test your iPhone or iPad's display, sensors, connectivity, and other components. Ideal for verifying device functionality before buying, selling, or for long-term use.





217+ iOS apps curated and reviewed
Whether you're new to display check or looking for an upgrade, our curated collection of 217+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | Jul 2026 | |
| 2 | Free | 4.5★ (88) | Yes | Yes | Aug 2026 | |
| 3 | Free | 4.7★ (9.2K) | No | Yes | Aug 2026 | |
| 4 | Free | — | Yes | No | May 2026 | |
| 5 | Free | 3.8★ (86) | No | Yes | Jul 2026 | |
| 6 | Free | — | Yes | Yes | Jul 2026 | |
| 7 | Free | 4.6★ (858) | No | Yes | Aug 2026 | |
| 8 | Free | 4.7★ (36) | No | No | Aug 2026 |










Thoroughly test your iPhone or iPad's display, sensors, connectivity, and other components. Ideal for verifying device functionality before buying, selling, or for long-term use.






This app provides comprehensive system activity information for Apple devices, including detailed insights into hardware, sensors, and network status. It offers privacy controls, customizable widgets, and advanced testing and reporting features through optional in-app purchases.




Easily test and check all mobile device functionalities. This app is useful before purchasing a device, sending it for repair, or after receiving it back. It also helps you locate nearby repair shops.




Instantly test your phone's hardware, from the camera to sensors, to ensure it's functioning optimally. Get detailed system reports and monitor key resources like battery and RAM in real-time. Ideal for diagnosing issues or verifying device health.


This utility app helps you test your device's touchscreen responsiveness and consistency. It visually indicates touch registration with color changes and displays touch counts and coordinates. It's useful for diagnosing screen issues or confirming proper functionality.


Extend your Windows PC's desktop to another device wirelessly or via USB. Use your tablet or phone as a drawing tablet or a portable second monitor for travel and productivity.


This application tracks your speed and distance traveled using GPS. It displays your current speed in kilometers or miles per hour, records trip data, and can alert you to speed limit changes. It also includes a compass and weather information.


This app projects navigation and driving information onto your car's windshield. Enhance your night driving experience with speed, clock, weather, and music details displayed directly in your line of sight.


Instantly reveals your public and local IP addresses along with detailed network information. Offers a simple interface and provides guidance on protecting your IP for enhanced online privacy and security.


Transform your iPad or iPhone into a secondary display for your Mac using a USB connection. Enjoy lag-free browsing and video playback, utilize touch gestures like pinch-to-zoom, and enhance multitasking with Split View. This free version offers a 7-minute session limit.


This app offers a comprehensive performance benchmark for mobile devices. It simulates real-world usage scenarios across CPU, memory, storage, and graphics to help users understand their device's full potential and capabilities.


This utility app helps you understand screen resolution and its impact on your vision. It explores concepts like 326 DPI and the perceived limits of screen or eye vision.


Easily calculate the Pixels Per Inch (PPI) for any screen, from phones to monitors. Input screen dimensions and diagonal size to get an instant PPI result and determine if it qualifies as a Retina Display. You can also search for device information online and save your calculations.


Access in-depth hardware and software diagnostics for your iOS device. Get detailed information on your CPU, screen, battery, network, and sensors. Monitor memory, storage, and screen performance with this comprehensive utility.


This free GPS-based app functions as a digital speedometer and head-up display. It shows current speed, average speed, maximum speed, and road information. It also provides slope data and weather conditions, with optional HUD mirroring for windshield reflection.




Transform your iPhone or iPad into a genuine second display for your Mac. This open-source solution allows you to extend your screen space, keeping essential apps visible. Connect via USB for minimal latency or Wi-Fi for easy setup.