Apps like IMSLP

Here are some great alternatives to IMSLP by IMSLP/Petrucci Music Library :
Sheet Music Scanner & Reader
Sheet Music Scanner & Reader
★4.0
MuseScore: sheet music
MuseScore: sheet music
★3.8
Henle Library – Urtext scores
Henle Library – Urtext scores
★3.5
MobileSheets
MobileSheets
★4.6
MobileSheets Trial
MobileSheets Trial
★3.3
CCPiano- piano sheet music
CCPiano- piano sheet music
★3.9
Libby, the Library App
Libby, the Library App
★4.8
Libby (Beta), the Library App
Libby (Beta), the Library App
★4.4
Music Writer - Music Composer
Music Writer - Music Composer
★4.3
ScorePDF: Sheet Music Viewer
ScorePDF: Sheet Music Viewer
★4.1
My Sheet Music
My Sheet Music
★3.9
OverDrive
OverDrive
★4.7
À La Mode (A La Mode)
À La Mode (A La Mode)
★4.8
Mobile Hymns 3.0 sheet music
Mobile Hymns 3.0 sheet music
★4.4
MusicReader
MusicReader
★3.5
PlayerPro Music Player (Pro)
PlayerPro Music Player (Pro)
★3.8