NightWell:Smart Sleep Tracker
株式会社C2 Health & Fitness iPhoneiPadiPod touch
NightWell:Smart Sleep Tracker is a free Health & Fitness app for iPhone and iPad by 株式会社C2. Rated 4.6/5 from 16 ratings. Requires iOS 13.0.
- Rating
- 4.6
- 16 ratings
- Price
- Free
- on the App Store
- Size
- 125 MB
- Age 4+
- Updated
- Jul 23
- 2026 · v5.3.32
Screenshots
About NightWell:Smart Sleep Tracker
Discover deeper, more restful nights with NightWell, your smart sleep companion. Track sleep patterns, monitor snoring, and wake up gently with intelligent alarms designed around your natural rhythm. Gain personalized insights to improve your rest, energy, and focus every day. Calm sounds and mindful tips help you relax before bed and rise refreshed in the morning. ====Features==== NightWell is a multi-functional alarm clock designed to support and improve your sleep. For people who have trouble falling asleep or waking up refreshed, it has a lot of amazing functions to improve their sleep habits. ◆Lull Sounds The healing lull sound will be played to induce peaceful sleep. This is very good for people who suffer from insomnia, who have trouble falling asleep or who need to relax more in sleeping. ◆Smart Alarm This is available for those who always wake up feeling tired, who turn off the alarm only to fall back to sleep or who have trouble waking up in the morning due to hypotension. This monitors body movements using accelerometer in your smartphone and activates the alarm when you're in light sleep. ◆Sleep Report If you use this app every day, you can get your own report analyzing your sleep in various aspects. This report detects your sleep cycle and provide you with the tips to sleep better. ◆Cloud Service This is the service to keep all of your Sleep Log on the dedicated server safely. When you change your device, you can transfer the data from your old device to the new one. This is a free service. ◆Connect NightWell to Health app You can connect NightWell to iOS Health app. By turning ON the connection and log your sleep by NightWell, your bedtime and wake up time are automatically updated to the Health app. ◆Others ・Wake-up task provides strong support for your awakening. ・Fade-In in the alarm sound wakes you up gently. ===="Premium" Subscriptions ==== ●By purchasing the subscription, all Premium features are available for free and all in-app ads are hidden. ●The subscription fee will be charged to your Apple ID. ●Use the free trial (one per Apple ID). ●The subscription fee will be charged within 24 hours before the free trial ends. To avoid charges, cancel the subscription at least 24 hours before the free trial ends. ●The monthly/annual subscription fee will be charged within 24 hours before the current subscription expires. You can cancel automatic renewal at least 24 hours before the expiration date. ●The subscription fee is non-refundable even if there is time remaining until the subscription's expiration. ●To cancel automatic renewal, go to Apple ID settings. ====Terms of Service & Privacy Policy==== Terms of Service : https://jukusui.com/en/terms Privacy Policy : https://jukusui.com/en/privacy ====Support==== [email protected]
Ratings & reviews
4.6
16 ratings
What’s new
Version 5.3.32 · Updated July 23, 2026
Minor fix.
App privacy
The developer, 株式会社C2, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data, Other Usage Data
- Diagnostics: Performance Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Precise Location
- Contact Info: Physical Address, Email Address
- Health & Fitness: Fitness
- User Content: Emails or Text Messages, Audio Data, Other User Content
- Identifiers: User ID
Used for: Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data, Other Usage Data
- Diagnostics: Performance Data
Used for: Third-Party Advertising
Alternatives to NightWell:Smart Sleep Tracker
Looking for apps like NightWell:Smart Sleep Tracker? Here are 6 similar apps on the App Store. The highest rated is カロミル - ダイエット、カロリー&PFC管理の健康アプリ (4.7/5), and all 6 are free to download.
-
Sleep Meister Lite
4.6
-
Sleep Tracker, Recorder
4.5
-
Sleep Tracker And White Noise
4.4
-
カロミル - ダイエット、カロリー&PFC管理の健康アプリ
4.7
-
Sleep Tracker For Sleep Well
4.3
-
Sleep Tracker: Snore Recorder™
4.3
| App | Rating | Price | Last updated |
|---|---|---|---|
| NightWell:Smart Sleep Tracker | 4.6 / 5 (16 ratings) | Free | July 23, 2026 |
| Sleep Meister Lite | 4.6 / 5 (633) | Free | Mar 30, 2026 |
| Sleep Tracker, Recorder | 4.5 / 5 (1,143) | Free | Mar 5, 2024 |
| Sleep Tracker And White Noise | 4.4 / 5 (39) | Free | Jun 28, 2024 |
| カロミル - ダイエット、カロリー&PFC管理の健康アプリ | 4.7 / 5 (183) | Free | Sep 28, 2026 |
| Sleep Tracker For Sleep Well | 4.3 / 5 (2,170) | Free | Aug 19, 2026 |
| Sleep Tracker: Snore Recorder™ | 4.3 / 5 (128) | Free | Jul 7, 2025 |