Basic Black FOR MAC is perfect for saving energy on iBook. Just a simple black screen saver that does the job efficiently.

Basic Black is fantastic! It really saves battery life while reading. Simple yet effective!

I love this app! It keeps my screen from draining power when I'm using iBooks. Highly recommend!

This app is a lifesaver for my iBook! The black screen reduces power consumption significantly.

Basic Black does exactly what it promises. Perfect for saving battery during long reading sessions!

Such a simple yet brilliant app! Helps extend my device's battery life while enjoying my books.

Amazing app! Turning the screen black really helps with battery efficiency when reading. Love it!