1- and 2-star reviews grouped into themes with verbatim examples. Each cluster is a wedge a competitor could exploit.
First load takes ~60–120s. Cached after.
3 reviews·3 themes
Unexpected billing after cancellation
Users report being charged again after canceling their subscription, despite expecting no further charges.
1
reviews
“[1★] 辞めたのにまた請求された — 請求されたから辞めたのにまた請求された。何故”
Confusing health metric changes and lack of explanation
Users are alarmed by sudden, unexplained changes in heart age or health metrics (e.g., PNN50) and lack clarity on how these values are calculated or improved.