Daily Supplications - Daily Supplications app enables users to listen to the recitation of an extensive collection of more than 300 different Islamic Duas so they can learn them.
Noizer - Ambient sounds like Noisli, but free
Qibla Compass by Naaz Apps - Qibla Compass is a compass app by Naaz App that automatically detects your current location to enable you to say your prayers while facing the direction of the holy place of the Kaaba.
Defonic - Create a unique sound environment at home or in the office
Medito - 100% Free Meditation App that will improve your Mental wellbeing with the help of Guided Meditations, Breathing Exercises, Mindfulness Practices, Relaxing Sounds, and more.
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.