Track Bible is a free progressive web app for reading Scripture without a rigid schedule. The welcome screen says it plainly: read the whole Bible at your own pace, tick off chapters as you go, choose what you read next, and read in the app or with your own Bible. It is completely free and private.^1 Chapter progress stays on the device and never leaves it. The maker still sees ordinary server logs such as an IP address, plus rare crash reports without that reading data.^1
Gracious Tech, a non-profit Christian company run by Jon Here, built it after mission in south-east Asia. Jon has degrees in IT and theology. They hold to Reformed Protestant beliefs: people are saved by God's grace through faith in Christ, and the Bible is the ultimate authority.^2 Every app they publish is free — no cost, no ads, no signup, no tracking — and Track Bible's source is MIT No Attribution so anyone can inspect or adapt it.^3
It is their chapter-by-chapter Bible reading tracker, listed beside Stello, Paper Bible, and fetch(bible).^4 Mark chapters or a whole book when you finish, and pick Scripture up whenever you sit down.^1