Onsen, a spa located in San Francisco, California, provides a range of wellness treatments, massages, and relaxation services to clients seeking rejuvenation and well-being.
Operator computes a Health score every night at 2 am HST. It's the one number that tells you if this shop is winning, losing, or steady. Here's how Onsen broke down on Apr 30, 2026.
Onsen is indexed in Operator's Spas market index for San Francisco, CA.
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Reviews pulled nightly from Google, Yelp, and Meta. Aggregate weighted by recency and source authority.
The Spas shops Onsen competes with most often, ranked by Operator's health score. Tap any row for that shop's full page.
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