MyDarkEye

Moreover, the application allows you to observe the image in the process of its formation.
After launching the application, point the camera at an object in the dark and gradually move the slider to the right until the image becomes light enough. The buttons to the right and left of the slider allow you to move it in steps.
To prevent the image from being blurred, hold the phone motionless during its formation.
Once the image has formed, you can click the third button from the right in the bottom row to pause the application. You can then click on the second button from the right to save the image to your photo library. After this, do not forget to turn off pause.
The application does not allow you to take pictures in light conditions below a certain threshold.
Do not point the camera at well-lit objects if the slider is not in the extreme left position in this application operating mode!
The second button on the left allows you to switch the front camera to the rear one and back.
The third button from the left changes the application operating modes.
In mode 2, the application shows the picture only when the phone body moves and also when the object in front of the camera moves.
Mode 3 partially inverts colors.
Modes 4 and 5 allow you to create multiple and blurred images of objects if they move and also if the phone body moves.
The right button allows you to remove controls from the screen.
To return them, touch the screen.
To change the zoom, swipe your finger right and left on the screen.
The app uses a lot of power, so don't leave it running longer than necessary to capture the image.