The app Best Devotional Songs contains some of the best Hindu Devotional Songs
The app contains the following devotional songs.
Bhaja Govindam
Deva Devam Bhaje
Durga Suktam
Eka Dantaya Vakratundaya
Garuda Gamana Tava
Hanuman Chalisa
Kalabhairava Ashtakam
Medha Suktam
Mohana Muralidhara
Mudakaratha Modakam
Om Jai Jagdish Hare
Shanti Mantra
Shivatandava Stotram
Shuklam Bharadharam Vishnu
Ya Devi Sarvabhuteshu

This devotional app is offline capable, means the devotional songs can be played without internet connection.