Hustle Timer от Scrap Labs

Hustle Timer is for anyone squeezing focus sprints in between gigs. One toolbar click starts a 25-minute sprint; the icon counts down and a notification fires the moment a sprint or break ends. Sprints and breaks are preset, so there is no dashboard, no account, and nothing to configure. Built by Scrap Labs, the team behind ExtraHustles, a publication that prices side hustles by their real hourly math.