Mochi GenieNuova

Mochi Genie is a tiny flying genie that lives on your Mac desktop. He reminds you to drink water, stretch, rest your eyes, fix your posture and walk, then does the break with you so it is harder to swipe away. He steps aside during calls, presentations and fullscreen, and his window never steals your clicks. Seven capes, little moments like yawns and sneezes, and your own custom reminders. Native Swift app, about 0.12% CPU, works offline, no account, and nothing about what you do leaves your Mac. Free for 7 days, then $12.99 once with no subscription and a 14-day money-back guarantee.