From beginner-friendly picks to power-user tools, our phone diagnostics list covers 213+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.
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.
Diagnose over 40 hardware and system issues with this app. Monitor your phone's hardware, battery, memory, and storage. Track network usage and daily charging cycles to keep your device running smoothly.
Access personalized solutions for all your Apple products and services in one convenient app. Troubleshoot issues with guided steps, chat with support, manage subscriptions, reset passwords, and find nearby service locations for Genius Bar appointments.
What are the best phone diagnostics apps for iPhone?
Phone Diagnostics tops our phone diagnostics apps ranking as of July 2026, with a 3.8-star average from 86 App Store ratings, and it's free to download.
Are there free phone diagnostics apps for iPhone?
Yes — 20 of the top phone diagnostics apps we rank are free to download, including Phone Diagnostics and Phone Doctor Plus.
Does Phone Diagnostics have ads or in-app purchases?
Phone Diagnostics has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
How many phone diagnostics apps are on the App Store?
We track 213+ phone diagnostics apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
What does this app do?
This application allows users to easily test and check the various functionalities of their mobile devices. It's designed for use before purchasing a device, before sending it for repair, or after it has been repaired to verify its condition. It also assists in locating nearby repair shops.
What are the key features of this app?
Key features include comprehensive device functionality testing, the ability to check hardware before buying a new or used phone, and verification of repairs. Additionally, it helps users find repair shops in their vicinity and can be utilized by quality control staff in repair shops or refurbishing factories to improve efficiency.