Driftless Vitals

Calm health signals

Free · Designed for iPhone. Not verified for macOS.

Free, private, on-device. Driftless watches your health baseline and speaks up only when something quietly drifts. Driftless is a calm, private health co-pilot for busy people. It reads Apple Health, quietly learns your personal baseline, and speaks up only when something meaningfully drifts — one gentle, plain-language signal instead of another dashboard to manage. No charts to check every morning. No streaks, no scores, no pressure. Just an occasional heads-up when your body's numbers move away from what's normal for you — and silence when all is well. COMPLETELY FREE • No purchases, no subscriptions, no ads. • Every feature is unlocked for everyone. PRIVATE BY DESIGN • No account, no login, no sign-up. • No data collection of any kind — not even anonymous usage statistics. • No analytics, no trackers, no third-party SDKs. • No backend and no automatic cloud upload: processing is on-device. Health data only leaves your iPhone if you explicitly export, share, or back up. CALM, NOT ALARMIST • At most one quiet signal a day, rate-limited and debounced so you're never flooded. • Quiet hours and an adjustable frequency cap. • Warm, plain-language wording — never a red-alert dashboard. WHAT IT WATCHES Resting heart rate, heart rate variability, sleep, respiratory rate, wrist temperature, and daily activity. Driftless builds a robust personal range for each and tells you, in one sentence, when today drifts from it — plus one small suggested action. NOT A DIAGNOSIS Driftless is not a medical device. It never names a disease, never diagnoses, and never gives medical or medication advice. Every message is informational and carries a "not a diagnosis" framing. If you're concerned about your health, talk to a clinician. WORKS WITH YOUR DEVICES • Apple Watch optional — metrics like HRV, respiratory rate, and wrist temperature light up if you wear one, and the app gracefully does without if you don't. • Apple Watch app and complications for a glance at your day. • Home Screen and Lock Screen widgets. • Full support for 16 languages: English, Russian, Spanish, Portuguese, French, Italian, Czech, Turkish, Norwegian, Swedish, Finnish, Ukrainian, Simplified Chinese, Japanese, Korean, and Arabic. Driftless does one thing: it watches quietly, so you don't have to.

Ratings & Reviews

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What’s new in 1.1 • Stronger data trust — no silent sample fallback; empty states stay honest until your own Health data is in. • Confidence-aware signals — thin or limited data softens severity so early days stay calm. • Context that explains — alcohol, travel, and cycle tags reclassify strain away from false alarms. • Personal baselines — sleep architecture and recovery only claim “your usual” when history supports it. • Encrypted on-device backup and restore with your passphrase. • Watch companion, widgets, and 16 languages — still free, still private, still on-device only.

Version 1.1

The developer, Andrey Sapunov, 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, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Andrey Sapunov
    Size
    • 25.1 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    • Apple Watch
      Requires watchOS 26.0 or later.
    Languages
    English and 15 more
    • English, Arabic, Czech, Finnish, French, Italian, Japanese, Korean, Norwegian Bokmål, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish, Ukrainian
    Age Rating
    16+
    • 16+
    • Learn More
    • Frequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    Copyright
    • © 2026 Andrey Sapunov
  • Developer Website
  • Privacy Policy

    • More by Andrey Sapunov

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