GPchecker vs Gamepad Tester

GPchecker is App to check the Stick, Trigger and Button function on Game Pad which connected to iPhone. When you worry about Stick and Trigger input, please check the input value using GPchecker. If Stick and Trigger input value reach 1.0 or -1.0, its function is OK.

Gamepad Tester is the fast, no-setup way to check that your game controller works correctly on iPhone and iPad. Connect over Bluetooth or a cable, and every button, trigger, analog stick, and d-pad direction lights up on screen in real time. Whether you are buying a used controller, hunting down stick drift, or just making sure a new gamepad is fully functional, Gamepad Tester shows you exactly what your controller is sending. WHAT YOU CAN TEST • Buttons and triggers: see every press register instantly, with live trigger pressure values. • Analog sticks: precise X and Y readouts make stick drift easy to spot. Leave the sticks centered and watch for unwanted movement. • D-pad: confirm all four directions and the diagonals. • Rumble and haptics: fire built-in vibration presets, or set the left and right motor strength and duration yourself. • Battery: see your controller's charge level when it reports one. • Controller light: change the LED color on DualShock 4 and DualSense controllers. THREE TEST MODES • Generic Gamepad: a clear, labeled layout with live values and a live input update rate readout. • Universal Gamepad: works with any controller by mapping every input to a numbered slot, ideal when a controller is not fully recognized. • Vibrate Tester: presets and manual controls for rumble and haptics. WORKS WITH • MFi-certified controllers, such as Backbone One and Razer Kishi • Xbox controllers over Bluetooth • PlayStation DualShock 4 and DualSense Controllers that iOS does not recognize natively may not appear, even if they work on other platforms. NO SETUP, NO ACCOUNT Just connect a controller and start testing. There is no sign-in and no configuration, and your controller input is processed on your device. A built-in User Guide covers pairing, supported controllers, battery, stick drift, vibration, and troubleshooting. Gamepad Tester is free and supported by ads.