Wake Up When Your Body Is Ready

A smart power nap timer based on your heart rate.

Focused on What MattersNo gimmicks, no subscription, no distractions.PowNap is a clear, focused tool for those who want to disconnect and recharge – effectively.

  • Detects sleep onset through your heart rate

  • Wakes you gently at the right time

  • Choose your max nap length with one tap (15, 20 or 25 minutes)

  • Runs fully offline on your Apple Watch

  • 25-minute default limit – even if you don’t fall asleep

Gentle. Reliable. Precise.You press “Start” – PowNap takes care of the rest.As soon as your heart rate drops to sleep level, the app recognizes it and triggers the wake-up.If you don’t fall asleep, a subtle vibration will remind you when your chosen time is up.A progress bar shows how far along you are in your nap – in relation to the maximum duration you selected.

Optional CustomizationYou can fine-tune the vibration strength and heart rate threshold – or let the app adapt automatically based on your resting heart rate.

One-Time Purchase – And Peace of Mind

  • No subscription

  • No ads

  • No registration

  • No data collection

  • 100% private – all data stays on your Apple Watch.

No more guessing the perfect nap length – PowNap ensures you wake up refreshed.

Who is PowNap for?

Let PowNap take the guesswork out of your power naps.

How it Works

Heart Rate-Based Wake-Up
PowNap monitors your heart rate (blue bpm) and gently wakes you up when it drops below your personalized threshold (orange bpm) — a clear sign that you’ve fallen asleep.Flexible Nap Duration
Choose your max nap length with one tap: 15, 20, or 25 minutes. Your nap ends as soon as you fall asleep — or when your selected limit is reached.Progress Indicator
A subtle progress bar keeps you informed, showing how far you are into your nap based on your chosen duration.Adaptive or Manual Sensitivity
Let PowNap automatically adjust your heart rate threshold based on your resting heart rate — or fine-tune it manually for more control.100% Local – Private by Design
PowNap runs entirely on your Apple Watch. No data leaves your device. No ads. No registration. No tracking.

Try it today and nap smarter!

Privacy Policy for PowNap

Effective Date: March 20, 2025
Last updated: April 4, 2025⸻1. General InformationPowNap uses your heart rate to determine the optimal time to wake you up during a power nap. Protecting your data is our highest priority. This privacy policy explains what data we collect, how we use it, and what your rights are regarding that data.⸻2. Contact InformationIf you have any questions or requests related to privacy, feel free to contact us:
📧 Email: [email protected]⸻3. Collection and Use of Personal Data3.1 Health Data (HealthKit)PowNap uses Apple HealthKit to access and optionally write nap-related data. All processing takes place locally on your device. PowNap never uploads, shares, or stores health data outside of your device.Data read from HealthKit:
✔ Heart rate (bpm) – Used to detect when you fall asleep and to wake you up at the right time.Data written to HealthKit (optional):
✔ Nap duration – If enabled in the settings, PowNap writes the duration of each nap to the Sleep category in your Health app.You can disable access to HealthKit at any time in your iPhone’s settings. PowNap does not access or write any other HealthKit data.3.2 App Analytics and Error Reports✔ PowNap does not collect personal data for advertising or user tracking.
✔ If you choose to send us an error report, it may include anonymous technical information, but never personal or health data.⸻4. Data Sharing❌ PowNap does not share any data with third parties.
❌ No data is transmitted to external servers or stored in iCloud.
❌ No data is used for marketing or behavioral analytics.
✔ All data remains 100% local on your Apple Watch and iPhone.⸻5. Your RightsYou have the following rights regarding your data:
• Access: You can view your nap data directly in the app or in the Health app (if enabled).
• Deletion: You can delete your nap history at any time from within the app.
• Control: You can disable HealthKit access at any time via the iOS system settings.To make a request or ask a question, contact us at: [email protected]⸻6. Changes to This Privacy PolicyWe may update this privacy policy to reflect functional or legal changes. The current version is always available in the app under:
Settings → Privacy