If you need a completely free alternative, you might consider apps like or Pandan , which offer basic break-reminder functionality at no cost. MacBreakZ 5 - publicspace.net
Unlike simple timers, it monitors your actual keyboard and mouse usage to suggest breaks exactly when you need them. MacBreakZ 5 for Mac Free Download
The full version includes a library of 42 stretching exercises designed to reduce muscle tension and improve posture. If you need a completely free alternative, you