Contrastly: Ice Bath & Sauna

Wild Swim & Steam Room Timer

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Time your cold and your heat, keep a calm record of every session, and see it all in Apple Health. Contrastly is a timer and a journal for cold plunges, saunas, and the contrast between them. Most trackers ask you to remember what you did and type it in afterwards. Contrastly times it while it happens — the cold and the heat — and keeps the record so you can look back at what you actually did. START, DON'T TYPE • One tap starts a cold, heat, or contrast session. No form to fill in first. • Both halves are timed. Cold is a real session here, not a checkbox on a sauna entry. • Rounds, phase changes, and haptic cues at every thirty seconds, so you can put the phone down. • Spoken guidance in your language, ducking your music instead of stopping it. • The clock is read from the wall clock, so a session stays accurate even if the screen locks or you leave the phone on a bench. APPLE HEALTH THAT ACTUALLY WORKS • Sessions are written to Health as workouts, so they appear alongside the rest of your activity. • The heart rate already recorded while a session was running is read back and shown alongside it. A workout is the only thing Contrastly writes. • Sleep, resting heart rate, and heart rate variability are read so you can see how exposure lines up with recovery. • Nothing is written without your permission, and you can revoke it at any time. GUIDED PROTOCOLS • Progressive programmes for cold, for heat, and for contrast, starting at thirty seconds. • A step counts when you have actually done it — not when you remember to fill in a form afterwards. • Every step is a suggestion. Stopping early is always fine, and nothing here asks you to beat a record. SEE THE PATTERN • Weekly, monthly, and yearly trends for time, temperature, and tolerance. • Presets for the temperatures, durations, and humidity you use every week — humidity up to 100%, because steam rooms exist. • Session photos, notes, and how each one felt. YOURS, AND PORTABLE • Private iCloud sync across your devices. • CSV export: your last 30 days free, your whole journal with Pro. Your records leave with you. • CSV import, free on every plan. Bring a journal in from another app or an old phone. • Home Screen and Lock Screen widgets. FREE AND PRO Logging is never paywalled. Unlimited sessions, the start/stop timer for cold, heat, and contrast, your history, and your streak are all free, forever. Contrastly Pro adds every guided protocol, Health correlations, trends, presets, photos, private iCloud sync, widgets, and full export. Monthly and annual subscriptions are available, and the annual plan starts with seven days free. A one-time lifetime purchase is also available. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel in your App Store account settings. A NOTE ON SAFETY Contrastly is a journal and a timer. It gives no medical advice and makes no health claims. Cold and heat exposure carry real risks, including cold shock and heart rhythm disturbances. Never go alone, get out whenever you want to, and talk to a doctor before you start. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://develak.com/privacy-policy/

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The developer, Develak, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • VoiceOver

      • Voice Control

      • Larger Text

      • Dark Interface

      • Differentiate Without Colour Alone

      • Sufficient Contrast

      • Reduced Motion

    Information

    Provider
    • PRIOMAT LLC
    Size
    • 10.8 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 43 more
    • English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    • Contrastly Pro Lifetime USD 69.99
    • Contrastly Pro Annual USD 34.99
    • Contrastly Pro Monthly USD 5.99
    • Learn More
    Copyright
    • © 2026 Develak
  • Privacy Policy

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