Apps · 2026
Redline
A free workout tracker for iOS, Android and the web, with coaching built in: clubs, team goals and coaches who plan sessions on their athletes' calendars.
Redline logs a set in a couple of taps: last time's numbers are already in the field, the rest timer runs against the wall clock and keeps going on the lock screen, and a target for today comes from your own history.
Around the log sits everything a lifter keeps coming back for - programs that know which day is next, a training calendar, records, recovery by muscle group, strength standards and a monthly recap - and a club layer for coaches: invite codes, a team feed, a monthly team goal, who fell behind this week, private notes per athlete, and sessions planned straight onto an athlete's calendar.
It is one Flutter codebase for phones, tablets and a wide desktop layout, on Firebase with security rules written per collection, in English, Hungarian and Slovak, with an admin panel and a coach portal built from the same code. 58,000 lines of Dart, covered by around 190 tests.
The live demo runs the real app in your browser with a sample athlete - two months of training generated through the app's own scoring code - and touches no server.