Learn industrial automation and PLC programming through realistic simulations. Practice with Rockwell and Siemens systems, including ladder logic, SCADA, HMI, and VFDs. AI-powered tools offer smart diagnostics and feedback for skill development.






213+ iOS apps curated and reviewed
The best plc signal explorer apps on iPhone average 4.4★ across 213+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | May 2026 | |
| 2 | Free | 4.5★ (75) | No | Yes | Jul 2026 | |
| 3 | Free | 4.5★ (59) | No | Yes | Jul 2026 | |
| 4 | Free | 4.6★ (4.9K) | No | Yes | Jul 2026 | |
| 5 | Free | 3.9★ (14K) | No | Yes | Jul 2026 | |
| 6 | Free | 4.6★ (60K) | No | Yes | Jul 2026 | |
| 7 | Free | 4.5★ (19K) | No | No | Jul 2026 | |
| 8 | Free | 4.4★ (105) | No | Yes | Jul 2026 |












Learn industrial automation and PLC programming through realistic simulations. Practice with Rockwell and Siemens systems, including ladder logic, SCADA, HMI, and VFDs. AI-powered tools offer smart diagnostics and feedback for skill development.




This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.


Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.


Easily test your internet speed, analyze WiFi signal strength, and track performance history. Identify the strongest connection points and troubleshoot slow networks for a better online experience.


Automate tasks across your favorite apps and smart home devices without coding. Save time by connecting services to trigger actions based on specific events. Explore a vast library of pre-built automations or create your own.


Manage your smart kitchen and home appliances from leading brands like Bosch, Thermador, and Gaggenau. Control, monitor, and receive notifications for your devices, access recipes, and even use voice commands for convenience.


Analyze your surroundings with tools that focus on connected devices, local signals, and network information. Understand Wi-Fi and Bluetooth activity, check magnetic fields, and measure network speed in a clear interface.


Enhance your cellular signal strength with this app designed to work with a specific signal booster system. It provides installation guidance, helps locate nearby cell towers for optimal performance, and offers offline access to booster information.


Unify control of thousands of smart home devices from various brands. Organize devices by room, automate tasks with custom scenes, and share access with family. Experience a simpler, more connected, and comfortable living space.


Control your home appliances like lighting, plugs, and heaters remotely. Schedule device operation, customize settings, and receive notifications for peace of mind. Manage all your smart devices from anywhere, anytime.


Effortlessly manage smart home devices with automatic discovery and easy router connection. Control devices with voice commands, set custom schedules, and create automations based on various triggers. Monitor and manage devices across multiple homes and rooms from a single interface.


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.


Automate your digital life with smart notifications and custom widgets. Trigger workflows based on time, location, or external services. Design dynamic home screen widgets to display personalized information.


Control your home automation devices from your smartphone. Easily pair devices, organize them by room and home, and set custom schedules and alerts. Share access with family members for seamless smart home management.


Control and monitor your HVAC or grow environment with intelligent ventilation. Access advanced programming, view real-time environmental data, and receive customizable alerts for optimal control.


Access a vast inventory of electronic components on the go. Find, order, and track parts with features like visual search, barcode scanning, and offline datasheet access. Registered users get enhanced order management and shipping notifications.


Manage and monitor your devices remotely. View live feeds, play back recordings, and communicate through intercom. The app also handles device settings, local file management, and push notifications.


Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.


Build custom IoT apps without coding using a drag-and-drop interface. Manage devices, users, and data remotely with a powerful web console and scalable cloud infrastructure. Supports over 400 hardware boards and various connection options.