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

Privacy Policy for PowNapEffective Date: March 20, 20251. 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 your rights regarding your data.⸻2. Responsible Party & Contact InformationIf you have any questions about data privacy, you can contact us at:📧 Email: [email protected]⸻3. Collection and Use of Personal Data3.1 Health Data (HealthKit)PowNap uses HealthKit to analyze your heart rate during a nap. All data is processed locally on your device and is never shared with third parties or stored in iCloud.What data is read?
âś” Heart rate (bpm): To detect when you fall asleep and wake you up at the optimal time.
What data is stored?
âś” Nap duration: To provide you with a history of your naps.
PowNap does not write any data to HealthKit and does not share health data with third parties.⸻3.2 App Analytics & Error Reports✔ PowNap does not collect personal data for advertising or tracking purposes.
âś” If you send us an error report, it may contain anonymized technical information, but never personal or health data.
⸻4. Data Sharing❌ PowNap does not share any data with third parties.
❌ All data remains locally on your device.
❌ No data is used for advertising or tracking.
⸻5. Your RightsYou have the following rights regarding your data:
âś” Access: Find out what data is stored about you.
âś” Deletion: You can delete your saved nap data at any time.
âś” Processing Restrictions: You can disable HealthKit access at any time via your iOS settings.
If you wish to make a request, contact us via email: [email protected]⸻6. Changes to This Privacy PolicyThis privacy policy may be updated to reflect changes in the app or legal requirements. The current version is always available in the app under Settings > Privacy.