Divine Mercy OnePray is a free iPhone app developed by Marco Tomasello. This app aims to teach and encourage people to pray the Divine Mercy Chaplet, a powerful prayer that has brought amazing graces to the developer's life.

The main purpose of Divine Mercy OnePray is to inspire individuals to learn and pray the Divine Mercy Chaplet for the betterment of their own souls and lives. The app provides a simple and accessible way to access the prayers and instructions for the Divine Mercy Chaplet.

Currently, Divine Mercy OnePray is available in three languages: English, Italian, and Spanish. The developer welcomes translations in other languages and promises to release new versions promptly upon receiving the translated texts.

Whether you are new to the Divine Mercy Chaplet or a seasoned practitioner, Divine Mercy OnePray is a valuable tool that can help deepen your spiritual journey and bring you closer to the graces of this powerful prayer.