Real Device Testing:
1. Obtain a collection of real devices representing the target platforms and versions for your mobile app. This may involve purchasing or borrowing devices.
2. Install the necessary software development kits (SDKs) and development environments for each platform, such as Xcode for iOS and Android Studio for Android.
3. Connect the devices to your testing machine or cloud-based testing platform.
4. Install the app on each device and execute a series of test cases to evaluate its functionality, usability, performance, and compatibility on real devices.
5. Monitor and record the test results, including any defects or issues encountered during testing.

Simulator/Emulator Testing:
1. Use simulators or emulators provided by the respective platform’s development tools, such as the iOS Simulator in Xcode or the Android Emulator in Android Studio.
2. Set up the simulator or emulator environment, ensuring that the appropriate platform version, device configuration, and network conditions are selected.
3. Install the app on the simulator or emulator.
4. Execute test cases to verify the app’s functionality, usability, and compatibility within the simulated environment.
5. Monitor and record the test results, including any defects or issues encountered during testing.

Tips for Real Device, Simulator, and Emulator Testing:
1. Cover a range of devices and operating system versions that represent your target user base. Consider factors like device popularity, screen sizes, resolutions, and hardware capabilities.
2. Test on both the latest and older versions of the operating systems to ensure backward compatibility.
3. Consider the unique features and limitations of real devices versus simulators/emulators. Real devices provide accurate performance measurements and interactions, while simulators/emulators offer convenience and rapid testing cycles.
4. Test in various network conditions, such as 3G, 4G, Wi-Fi, or low connectivity, to evaluate app performance under different network scenarios.
5. Leverage automated testing frameworks and tools specifically designed for real device and simulator/emulator testing to increase efficiency and test coverage.
6. Utilize cloud-based testing platforms that offer access to a wide range of real devices and simulators/emulators. These platforms enable parallel testing on multiple devices, saving time and effort.
7. Continuously monitor and update your testing device inventory and simulator/emulator configurations to align with evolving market trends and user preferences.
8. Document and track any issues or discrepancies found during testing, and communicate them to the development team for resolution.

Remember that real device testing provides the most accurate representation of the app’s behavior, while simulators/emulators offer convenience for quick iterations and early-stage testing. A combination of both approaches, along with automated testing, can help achieve comprehensive mobile app testing coverage.