LifeJoule: Sleep & Insights
Sleep tracker, no watch needed
Only for iPhone
Free
iPhone
Life Joule tracks your sleep and helps you sleep better, with or without a watch.
Each morning you get a sleep score out of 100 for last night. It comes from when you fell asleep, how long you slept for your age, time awake in the night, and the day before: your steps, exercise and screen time. Screens in the 2 hours before bed count far more than screens during the day. Tap through to see exactly what added or took points, each with a plain sentence.
WHAT'S INSIDE
• Sleep score: last night's score and what shaped it, with your times and hours asleep. Sleep comes from Apple Health when you wear a watch to bed; without one, Life Joule estimates the night from your iPhone, clearly marked as an estimate, and you can correct it in two taps.
• Rate your night: tap "How well did you sleep?" and slide from 1 to 100. Your rating replaces the measured score for that night.
• Learns how you feel: once you've rated 3 nights, Life Joule tunes the next scores by the average gap between your ratings and its measurements over your last 30 ratings. You can turn this off.
• Trends: every night's score, plus weekly, monthly and yearly averages.
• Sleep better: tips for what took points from your night first, then everyday habits, each with its source named (CDC, the American Academy of Sleep Medicine, NHLBI).
• Meditate: a guided breathing session to wind down before bed, with gentle vibrations for each breath, your own notes and a quiet quote at the end.
• Morning reminder: an optional nudge after you're up to rate last night.
• Insights: patterns in your own data, with the numbers behind them.
• Life Attention and Time Wallet: see where your screen time went, choose how much you want each day and set limits for the apps that keep you up.
• Built-in Assistant: ask about your sleep and habits. Answers come from your own data and general guidance with its source named, worked out on your iPhone.
PRIVATE BY DESIGN
• Your data stays on your iPhone. There's no account, and Life Joule sends nothing to any server of ours unless you choose to send a sleep report to help improve estimates.
• Apple Health is optional and read only: Life Joule reads sleep, steps, workouts and mindful minutes, and never writes to Health.
• Screen Time is optional. What it measures never leaves your iPhone and isn't included in exports.
• No ads, no third-party analytics, no tracking.
• Export your data as a file, or delete all of it, at any time in Settings.
A NOTE ON WHAT IT IS
The sleep score is a wellness estimate, not a medical measurement. Life Joule isn't a medical device and doesn't diagnose or treat any condition. If poor sleep goes on for weeks, please talk to a doctor.
Questions or ideas: lifewpurpose@gmail.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Sleep detection on your iPhone is now part of getting started, so every night gets a score. A clearer welcome, and smaller fixes.
The developer, Ha Son Vo, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- User Content
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ha Son Vo
- Size
- 15.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Mature or Suggestive Themes
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Contains
Health or Wellness Topics
- Copyright
- © 2026 Ray V