Rejoice in the Lord
A hymn app used by over 10,000 people worldwide.
A highly responsive hymn app with smart filters, advanced full-text search, hymn categorization, and a unique 3D side drawer that brings a modern, immersive feel to worship.
Physical hymn books made it slow and cumbersome to find, filter, or search specific hymns during live worship services.
Built a Flutter app powered by a binary search algorithm for instant lookups, smart filters, live search suggestions, hymn categorization, a custom 3D side drawer, and smooth animation controllers throughout.
Used by 10,000+ people across Catholic churches in roughly 54 countries, meaningfully improving access to hymns and the flow of worship services worldwide.
Core Technical Features
Binary Search Hymn Indexing
Sub-50ms lookup across hundreds of hymns, with live suggestions as users type.
Full-Text Hymn Search
Searches inside hymn lyrics, not just titles, with highlighted matches in the results.
Custom 3D Spatial Drawer
A custom perspective-based 3D drawer for fluid, tactile category navigation.
- Layered Clean Architecture (Presentation, Domain, Data)
- Custom Animation Controllers & Gesture Recognizers
- Offline-First Local Caching with In-Memory Indexing
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