Song Book is a must-have app for any musician who wants to have their songbook always handy. Developed by Geeky Devs Studio, this app is available for Android devices and comes with a full license.

The app is clean and intuitive, with a variety of features that make it easy to organize and access your songs. You can add, edit, or delete songs, and organize them into lists. The search function allows you to find songs by any part of the title or author. The fixed-width font ensures that chords are positioned correctly relative to the lyrics, and the app also includes a full-screen mode and autoscroll feature.

One of the best features of Song Book is that the screen stays on when you're in song details, so you won't have to worry about the screen turning off in the middle of a performance. You can also adjust the font size to suit your needs and choose between a light or dark theme. Additionally, you can import songs from ChordPro format or from files in *.txt or *.pro format. Sharing songs with others is easy through email, SMS, or social media.

Overall, Song Book is an excellent app for musicians who want to keep their songbook organized and accessible at all times.