Echo-Praise
A complete worship-team platform built for a church priced out of subscription software — song library, transposable chord charts, a precision tuner, and setlists that work offline anywhere.

A church worship team had a problem: the subscription apps built for them cost more every year than a small church could justify, and they still didn’t fit how the team actually worked. So we built them exactly what they needed — a complete music platform that runs on serverless infrastructure for essentially $0 a month. This is what we mean when we say if you can dream it, we can build it.
At its heart is a song library the whole team shares. Leaders upload chord-chart PDFs and the app reads them — automatically pulling out the title, artist, key, and tempo. Need a song in a different key for Sunday’s vocalist? The built-in transposition engine rewrites the chart to any key on the fly, including Nashville Numbers, and can even export the transposed chart as a brand-new PDF. No extra software, no per-seat licenses.
It’s also a working musician’s toolkit. A precision instrument tuner built on raw Web Audio DSP — custom pitch detection accurate to within cents — lives right inside the app, complete with reference tones and adjustable concert pitch. And a built-in music-theory section teaches the Nashville Number System with an interactive key reference, so the team grows musically while they use it.
On Sunday morning it becomes the performance tool: per-user setlists with per-song keys, swipe navigation between charts, tempo-aware auto-scroll, and a screen that stays awake through the whole set. Because it’s an offline-first progressive web app installed on each member’s phone or tablet, it keeps working even in a sanctuary basement with no signal — and syncs everything when it’s back online.
Under the hood: multi-user accounts with admin, leader, and member roles; modern password hashing, rate limiting, and account lockout; a serverless API, SQL database, and cloud file storage — engineered with the same practices as enterprise software, at a cost a church can actually afford. Affordable doesn’t have to mean basic. Whatever your team is dreaming up, we can build that too.
Highlights
- Shared song library with instant search and chord-chart PDF uploads
- Automatic chart parsing — title, artist, key, and tempo extracted from PDFs
- In-browser transposition engine with Nashville Number mode and PDF export
- Precision instrument tuner built on custom Web Audio DSP
- Built-in music theory education with interactive key reference
- Per-user setlists with per-song performance keys
- Performance mode: swipe navigation, auto-scroll, screen wake-lock
- Offline-first PWA — installable, works with no signal, syncs later
- Multi-user roles (admin, leader, member) with modern security practices
- Serverless architecture that costs about $0/month to run
Screenshots









Want something like this?
Tell us about your business and we will show you what a custom-built site can do for it.
Start a project