Kapoo (Thai slang from กระปู๋) is the local, no-frills end of erotic massage — the authentic นวดกระปู๋ shops Thais use, plain fronts rather than tourist oil parlors. In Chiang Mai it overlaps heavily with the cheap happy-ending shops on Loi Kroh and scattered across the city.
It's the value end, broadly overlapping the happy-ending range — figure 800~2,000฿+ depending on shop and extras. They advertise in Thai as นวดกระปู๋, นวดพริตตี้ or นวดเซ็กซี่; add-ons like สองสาว 4 มือ (two girls, four hands), จากุซซี่ and ฟูลเซอร์วิส sit on a board inside. Agree any extra up front and confirm the price.
Walk-in and regulars drive it, daytime into evening — Chiang Mai is small enough that walk-ins are fine. The 9 shops below are live-ranked by 7-day visitor traffic and recent reviews. Updated daily.