Your presentation shouldn't be another thing to worry about.
Kainos is a modern, lightweight church presentation app engineered specifically for Sunday morning services. Built with Rust and Tauri, Kainos replaces sluggish, resource-heavy legacy presentation tools with an instant-response, 100% offline-first experience that never freezes or crashes mid-sermon. It delivers millisecond scripture lookups, seamless lyrics projection, and crystal-clear NDI output for OBS and live broadcast teams.
Product In Action
Interactive Walkthrough & Demo
Try out Kainos directly below: search Bible verses in milliseconds, review worship lyrics with chord charts, and test the OBS NDI lower-thirds output stream.
Engineered For Reliability
Built for Sunday Mornings
Every feature is built to give worship operators, pastors, and broadcast teams peace of mind.
Sub-15ms Scripture Search
Find and project any Bible verse instantly across multiple translations (KJV, NIV, ESV, and more) as the pastor speaks.
Worship Lyrics & Song Database
Manage entire song libraries with instant key transposition, verse/chorus navigation, and smooth typography.
Native NDI® Video Output
Broadcast transparent lower-thirds and full-screen slides directly over your local network to OBS, vMix, or ATEM switchers.
100% Offline-First Architecture
All scripture translations, songs, and media are stored locally in an ultra-fast SQLite engine. Zero internet required.
Ultra-Lean Resource Usage
Powered by Rust and Tauri, using under 90MB of RAM—leaving all your system resources free for video encoding and recording.
Stage Display & Remote Control
Keep worship leaders and speakers in sync with dedicated confidence monitor outputs and wireless remote switching.
Ready to install?
Download Kainos Today
Free, open releases available across Windows, macOS, and Linux. No subscriptions, no telemetry bloat.
Windows 10 / 11 (64-bit)
macOS 11.0 Big Sur or later
Ubuntu 20.04+, Debian, Fedora, Arch
Modern Engineering
Architecture & Tech Stack
Why Kainos doesn't lag or crash: written in Rust with Tauri and SQLite for maximum computational efficiency.
TauriLightweight, secure desktop runtime
RustHigh performance backend & NDI pipeline
AngularFast, responsive operator interface
Embedded, rock-solid offline database
Remote stage monitor & mobile control
TypeScriptRobust end-to-end type safety