Rachmaniac Score is a music notation app that you can use to quickly write down musical ideas. You can then export your score to any other notation program that supports MusicXML, like Finale or Sibelius.
Rachmaniac Score comes with various clefs, keys, timesignatures and has the possibility to add articulations, expressions, crescendos/diminuendos and slurs, along with a lots of other features. Staffs can be grouped with different brackets and braces and may contain several voices. Notes can be enharmonic shifted, grouped into tuplets or written as grace notes. Use copy/paste to quickly repeat patterns.
Write lyrics with various fonts and font sizes for vocal scores.
Both landscape and portrait modes are supported at your convenience. The navigation in the UI provides common gestures for instant scrolling and zooming in the score. Adjustment of most objects is made easy by dragging their various handles instantly with the finger or a touchscreen pen.
Scores can be saved and loaded into Dropbox or into the apps local document storage and all modifying of the score can be undone using an undo-button.
View the scores in a page layout and save them as PDF-files for printing to paper.
Export your scores to your favourite desktop notation program, like Finale or Sibelius, using MusicXML.