# NapSense: Power Nap Timer — Sleep Detection Perfect Timing

> Sleep Detection Perfect Timing (iPhone/iPad app by CHI-YU WU.)

- Source: https://appshunter.io/ios/app/napsense-power-nap-timer/id6751795511 (this page in markdown: same URL + `.md`)
- Developer: [CHI-YU WU](https://appshunter.io/developer/1836860355)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 18 MB
- Languages: English, French, German, Japanese, Korean, Spanish, Chinese
- Released: 2025-09-04
- Data updated: 2026-10-30

## What is NapSense?

Set a 20-minute nap and an ordinary timer starts counting the moment you press it. Spend twelve minutes falling asleep and you get eight minutes of rest.

NapSense waits. It watches for your phone to go still, and only then does the countdown begin. The nap you set is the nap you get.

HOW IT WORKS

1. Choose how long you want to nap, anywhere from 5 to 60 minutes.
2. Keep using your phone. Watch something, scroll, whatever helps you wind down.
3. When you drift off and the phone stops moving, NapSense starts the timer.
4. The alarm wakes you at the end of the nap you actually asked for.

WHAT YOU GET

• Sleep detection. The countdown starts when you do, not when you press start.
• Four white noise tracks: rain, ocean, pure rain, and midnight ambience.
• Live Activities. Detection status and countdown on the Lock Screen and Dynamic Island, iPhone 14 Pro and later.
• Alarms that work on silent. Pick a sound, set the volume, and test it before you lie down.
• Nap history. Every nap you have taken, how long it took to drop off, and how long you slept.
• A Home Screen widget. One tap and the nap begins.

WHERE TO PUT YOUR PHONE

On the mattress beside you, or in your hand. A phone on a nightstand never moves at all, so NapSense reads that as sleep the moment you set it down and starts counting early.

IN A HURRY

If you know you will be out in seconds, skip detection and start the countdown yourself.

NapSense is free. One purchase removes ads and unlocks your nap history. There is no subscription, nothing renews, and there is nothing to cancel.

No account. No sign-up. Your naps stay on your phone and are never uploaded.

---
Note: Not a medical device. For rest and wellbeing, not for diagnosis or treatment.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| NapSense Pro | $4.99 | one-time |


## Is NapSense safe?

Not enough ratings yet to assess NapSense.

## Is NapSense legit?

NapSense: Power Nap Timer appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for NapSense is 73 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.0.7 — 2026-10-29

The Pro offer now shows up after your second nap instead of your fourth, plus small fixes. Thanks for napping with NapSense.

### 1.0.6 — 2026-10-02

• Fixed the volume check reopening on its own after using the widget
• The widget now shows your actual nap length straight after updating
• Tapping the widget works even if you last closed the app on a settings screen

### 1.0.5 — 2026-10-02

• Spanish, Korean, German and French
• A new Home Screen widget starts a nap in one tap
• Permission prompts and the Live Activity now follow your language
• Fixes and polish

### 1.0.4 — 2026-08-30

• Japanese language support
• Nap history, kept on your phone, and NapSense Pro
• A short walkthrough on first launch
• Interface polish, stability improvements and bug fixes

### 1.0.3 — 2025-12-18

We’ve swept away the bugs and polished the experience.

## Apps similar to NapSense

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [PowerNap: Nap Timer & Alarm](https://appshunter.io/ios/app/powernap-nap-timer-and-alarm/id6787592785) | — | Free | Health & Fitness |
| [NapBest](https://appshunter.io/ios/app/napbest/id6760725859) | 2.0 (4) | Free | Health & Fitness |
| [NapBoost](https://appshunter.io/ios/app/napboost/id6760869553) | 3.0 (2) | Free | Health & Fitness |
| [Power Nap Assist - NapKit](https://appshunter.io/ios/app/power-nap-assist-napkit/id6740208542) | 5.0 (1) | Free | Health & Fitness |
| [PowerNapTime: Smart Naps](https://appshunter.io/ios/app/powernaptime-smart-naps/id6804314448) | — | Free | Health & Fitness |
| [Smart Nap: Power Nap Alarm](https://appshunter.io/ios/app/smart-nap-power-nap-alarm/id6804064599) | 5.0 (1) | Free | Health & Fitness |

## More apps by CHI-YU WU

- [Hourly - Time & Income Tracker](https://appshunter.io/ios/app/hourly-time-and-income-tracker/id6752606304)
- [KeBan - Study Planner](https://appshunter.io/ios/app/keban-study-planner/id6753966652)
- [Picki - Bookmark Social Posts](https://appshunter.io/ios/app/picki-bookmark-social-posts/id6758291416)
- [Furwise - Cat Care & Tracker](https://appshunter.io/ios/app/furwise-cat-care-and-tracker/id6762436469)

All apps by CHI-YU WU: https://appshunter.io/developer/1836860355

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-30.*