A free app for Android, by FKey.

Prayer Reminder – Kali Mantra is a free app for Android that will help you remember to pray every day. This application is based on the image of the goddess Kali, who is the worshiped form of the goddess Mother in Hinduism. You can set your daily prayer time by setting an alarm on your phone.

You can choose the most popular forms of the goddess Kali to pray to. This application also has a devotional song that can help you get out of the worries of the world and into the peace of God. 

This application will remind you of your daily prayers and give you a good reminder of the day. You can listen to the devotional music and also see the image of the goddess in different forms.