which is the best app for musicians?

Learning music in our country is bit expensive and bow many people have talent in them but because of not having a good knowledge about the music they have to drop their dream but because of technology now there are so many apps for musicians here are some of them are as follows:

• Audio Evolution Mobile Studio.
• Caustic 3.
• Hi-Q MP3 Voice Recorder.
• iReal Pro.
• iBooks.
• Garageband.
• Metranome/MetroTimer.

These are some popular apps for musicians.