NEVYN: Stress Monitor & HRV

Spot stress and wind down

Free · In‑App Purchases

This is what stress looks like: NEVYN shows live on your Apple Watch when it’s too much – and gets you back to calm in one minute. No account, no cloud. You often don’t notice stress until it’s already too much. Signs of it often show up in your heart rate and HRV. NEVYN shows you when your body is under pressure – at work, with family or when everything just hits at once. A gentle tap on your wrist, a minute of breathing, and you’re back to yourself. Requires an Apple Watch. ■ Notice it sooner If your load stays high for a while, your Watch gives you a gentle tap on the wrist – while it’s still building up. ■ Stress at a glance Calm, balanced, elevated or high: a score from 0 to 100 and a color for every quarter of an hour. Right on your watch face, in the widget and in the app. ■ Your day in one sentence No charts you have to decode first. NEVYN tells you in words how your day went: “Busy afternoon · Workout 45 min · 7 h 45 min sleep”. If you like, as a short recap in the evening. ■ How rested are you really? Every morning, one sentence about your night – slept well or less rested – plus a small tip for heading into the day. ■ Find out what stresses you Mark the moments that weigh on you, and NEVYN shows you what they have in common. After a few weeks, you’ll see your recurring patterns – with a heads-up shortly before, if you like. ■ Training doesn’t count as stress NEVYN recognizes workouts, movement and sleep from your Apple Health data. A high heart rate during a workout doesn’t end up in your stress score. ■ Measured against you – not others NEVYN compares your HRV and heart rate with your own values at the same time of day. What’s normal for you is decided by your body – not by an average. ■ Unwind in a minute The breathing exercise on your watch guides you to calm with gentle haptics – in 1 to 5 minutes. Afterwards, you see what it did: for example, “from 71 to 48”. And how often you’ve unwound this week. ■ Sounds to switch off Soundscapes for falling asleep, focusing and catching your breath – or your own mix of four sounds. With timer, widget and Control Center. ■ Your data belongs to you No account. No cloud. No tracking. Everything is calculated on your iPhone and Apple Watch – we never see your data. One tap deletes it all. Try NEVYN Pro free for 7 days. Then a monthly or yearly subscription, shareable with Family Sharing. Without a subscription, your own sound mix and the breathing exercise on Apple Watch stay free. The subscription renews automatically unless canceled at least 24 hours before the end of the period – anytime in your Apple ID settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nevyn.eu/en/privacy/ Wellness app – not a medical diagnosis.

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• Good news on Apple Watch: when your values are back in your usual range and how quickly you recover after a workout. • Tips from your own data and the new tag “Meal”. • A more honest night: “Well recovered, but a short night”. • Evening summary at 9 pm – can be turned off in Settings. • Calmer tab bar, smoother transitions, refreshed light mode. • NEVYN Pro now with Family Sharing.

The developer, Gianfranco Amato, 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

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

    • Supported Features

      • Dark Interface

      • Differentiate Without Color Alone

      • Reduced Motion

    Seller
    Gianfranco Amato
    Size
    116.3 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Apple Watch
      Requires watchOS 26.0 or later.
    Languages
    English and 26 more
    • English, Arabic, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian
    Age Rating
    9+
    In-App Purchases
    Yes
    • NEVYN Pro – Monthly $5.99
    • NEVYN Pro – Yearly $29.99
    Copyright
    © 2026 Gianfranco Amato