The Trinity Psalter Hymnal app, developed by Orthodox Presbyterian Church Inc., is a highly-anticipated and professionally designed music app available for iPhone. This app serves as a supplement to the print and digital editions of the Trinity Psalter Hymnal, offering users a seamless and user-friendly experience.

One of the key features of the Trinity Psalter Hymnal app is the inclusion of the full text and music of the songbook. Users can easily search for specific hymns using the app's search function, making it convenient for worship planning or personal use. Additionally, the app offers a browsable title and first line index, allowing users to quickly find hymns based on their titles or opening lines.

The app also includes a browseable hymn table of contents, providing users with a comprehensive overview of the available hymns. Users can bookmark their favorite songs for easy access and even loop a tune for the number of stanzas in each song.

In future upgrades, the developers plan to enhance the app by adding more robust Scripture and tune indexes, similar to those found in the print editions. This will further enhance the app's functionality and make it an even more valuable resource for users.

Overall, the Trinity Psalter Hymnal app is a must-have for anyone who wants to engage in worship, learn new songs, or participate in family devotions. Its user-friendly interface, comprehensive song library, and additional features make it a top choice for music enthusiasts.