181+ iOS apps curated and reviewed
The best troubleshooting apps on iPhone average 4.2★ across 181+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (62) | No | No | Jul 2026 |
| 2 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 3 |  | Free | 3.7★ (3) | No | No | May 2026 |
| 4 |  | Free | 5.0★ (4) | No | No | May 2026 |
| 5 |  | Free was $29.99 | — | Yes | Yes | May 2026 |
| 6 |  | Free | 5.0★ (2) | No | No | May 2026 |
| 7 |  | Free | 4.6★ (28K) | No | Yes | Jul 2026 |
| 8 |  | Free | 5.0★ (4) | No | No | May 2026 |
Learn to troubleshoot electrical circuits with a virtual voltmeter and PLC logic. This app offers 17 random electrical problems for a challenging learning experience, allowing you to practice identifying issues in motor starters and control circuits.
This app guides users through diagnosing and solving hydraulic equipment problems. It utilizes process flow diagrams, text, and video to ensure accurate and efficient troubleshooting for mechanics and technicians.
This app helps HVACR technicians diagnose and resolve system issues. It guides users through common symptoms, identifies potential causes, and recommends solutions. An offline database is available for use in remote locations.
This app helps users troubleshoot CNC machines, PLCs, and robots with FANUC drives. It uses step-by-step flowcharts and YES/NO questions to identify faulty parts, saving on expensive service engineer visits. It supports FANUC and SIEMENS CNC machines, with more knowledge bases to be added.
This free AI-powered medical equipment troubleshooting app helps clinical teams quickly resolve issues. It provides guidance to empower users and improve efficiency in healthcare settings.
Manage your home services business efficiently with this field service management platform. Streamline scheduling, customer communication, invoicing, and payments to save time and grow your business.
This utility app helps users troubleshoot common issues with specific medical packaging devices. It provides step-by-step instructions, images, and video links for quick solutions. Users can also access contact information for further technical support.
This app offers quick solutions for common printing issues across various printing methods. It helps users identify symptoms, pinpoint causes, and find resolutions for troubleshooting complex printing problems.
Manage and optimize your home internet with this app. View connected devices, control network settings, troubleshoot issues, and set up parental controls for a seamless and secure internet experience.
This application provides comprehensive guidance for diagnosing and resolving issues with High-Performance Liquid Chromatography (HPLC) systems. It offers quick tips, solutions for common problems across various detection methods, and helpful tools like a method transfer calculator.
This technical support app guides installers through remote car starter, bypass module, and alarm system installations. Select your vehicle and products to access step-by-step menus that clarify installation issues and provide solutions.
Manage and monitor your vSphere infrastructure from your smartphone or tablet. View virtual machines, hosts, and clusters, and receive push notifications for long-running task completions. Access detailed performance charts and execute quick actions on your virtual environment.
This app acts as your personal tech expert for your mobile device, offering troubleshooting guides, device location, and data backup. It also provides access to your coverage information, allows direct communication with tech support, and helps protect your identity online.
This platform allows users and HVAC technicians to explore products, configure A/C systems, and manage product registrations. It provides access to manuals, error codes, and direct support for troubleshooting and repairs.
This app connects HVAC technicians with local suppliers, offering real-time refrigerant pricing, appointment booking, and a community forum. It streamlines daily tasks for professionals by providing essential tools and information in one place.
Manage your internet service account with ease. View and pay bills, track orders, schedule appointments, and upgrade your service speed. Get instant support through live chat and access troubleshooting guides.