There is a paid version of the same app with more prayers: https://play.google.com/store/apps/details?id=com.simplesoftwarestudio.prayerbook_en
You can buy the paid app to support the project!
The application contains most important Orthodox prayers (in English):
1. Morning Prayers 2. Prayers Before Sleep 3. Miscellaneous Prayers 4. The Canons for Holy Communion 5. Akathist to Our Sweetest Lord God and Saviour Jesus Christ 6. Akathist to Our Most Holy Lady Theotokos. 7. The Order of Preparation for Holy Communion 8. Prayers after Holy Communion 9. The Canon of Repentance to Our Lord Jesus Christ 10. Canon to the Most Holy Mother of God 11. Canon to the Guardian Angel 12. The Akathist Hymn: "Glory to God for All Things". 13. The Six Psalms (read during matins). 14. Akathist to the Theotokos, Joy of All Who Sorrow 15. Akathist to Saint Nicholas the Wonderworker 16. Akathist to the Holy Confessor Alexis of Carpatho-Russia 17. Psalter of the prophet and king David
You can adjust the font size for more comfortable reading. You can use tap for scrolling down and up or you can use volume hardware keys for scrolling.
The application uses old language from the "Jordanville" Prayerbook.
