Kolda: Cold Plunge & Sauna

Cold is a skill. Time your plunges and sauna rounds, keep the streak alive and watch your body adapt — private, on-device, no account.

Cold is a skill. Kolda makes it a habit.

Time your plunges, log how they felt and watch your body adapt — streaks, trends and Apple Health in one calm, beautifully cold app. No account. Your data stays on your iPhone.

WHY KOLDA

• Session timer with guided phases — cold plunge, ice bath, cold shower, sauna, steam and contrast rounds, with haptic cues and a breathing phase • One-tap logging — temperature, mood before and after, recovery boost, notes • Streaks that motivate — daily streak, week dots and a shareable streak card • Protocols — ready-made sequences like Contrast Classic and Nordic Cycle (Pro), plus your own custom builder (Pro) • 30-Day Cold Adaptation — a gentle guided journey from 30 seconds to 3 minutes (Pro) • Stats that tell the truth — consistency, cold minutes and your temperature trend (charts are Pro) • Apple Health — sessions saved as workouts, heart-rate response around your sessions • Home-screen widget with your live streak • °C or °F, 38 languages, dark mode

FREE FOREVER

Timer for every session type, logging, streaks, 14 days of history, two starter protocols, Apple Health workouts and the shareable streak card.

KOLDA PRO

Unlimited history and full calendar, all protocols and the custom builder, 30-day programs, full stats and trends, photo notes and CSV export.

Pro is available as a weekly or yearly subscription, or a one-time lifetime purchase. The yearly plan starts with a 3-day free trial. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; payment is charged to your Apple Account and can be managed in Settings.

A quiet note on safety: Kolda is a tracker, not medical advice. Cold exposure has contraindications — if you have a heart condition or are unsure, talk to your doctor first.

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