SleepTracker: Watch or Phone
Meng-Yi Hsu Health & Fitness iPhoneiPadiPod touch
SleepTracker: Watch or Phone is a free Health & Fitness app for iPhone and iPad by Meng-Yi Hsu. Requires iOS 16.4. Updated October 12, 2026.
- Price
- Free
- on the App Store
- Size
- 61 MB
- Age 4+
- Updated
- Oct 12
- 2026 · v4.63
Screenshots
About SleepTracker: Watch or Phone
SleepTracker records your sleep automatically with an Apple Watch — or with just your iPhone on the mattress — and turns the night into a clear picture of your stages, heart rate, and recovery. No setup, no account, nothing to configure. No account. No sign-up. No email. No ads. Open it, allow Apple Health, and go to bed. HOW IT WORKS • Wear an Apple Watch to bed and open the app — sleep stages, heart rate, HRV, and breathing sync straight from Apple Health • No watch? Set your iPhone on the mattress and tap Track Sleep with iPhone — it uses movement and sound to estimate your night • Numbers match the Apple Health app exactly, down to the minute WHAT YOU GET • Sleep rings that show Sleep, Quality, and Deep at a glance • Full stage breakdown — Deep, REM, Light, and Awake • Bedtime, wake time, time to fall asleep, and sleep efficiency • Readiness, Sleep Fuel, and Recovery scores built from your real HRV • Heart rate, HRV, SpO2, and respiratory rate with Apple Watch • A smart alarm that wakes you in a lighter stage near your target time • Sleep consistency, trends, history, and a calendar of every night • Tags for caffeine, late meals, workouts, and stress, so you can see what actually changes your sleep BUILT BY ONE PERSON I built SleepTracker for myself, in a year when AI finally made something like this achievable alone — then kept building whatever people asked for. No team, no investors, and no roadmap written by anyone but the people using it. And no subscription: sleep data you already own shouldn't be rented back to you month after month. YOUR SLEEP DATA STAYS ON YOUR PHONE Sleep and health data is read from Apple Health only after you allow it. Microphone audio is analyzed on your device and is never recorded, stored, or uploaded. There is no account to create and no profile to sell. No tracking of you across other companies' apps or websites, and nothing shared with data brokers. TELL ME WHAT TO BUILD See something in another sleep app that you wish this one had? Email [email protected]. I read every message and I build what people actually ask for — that is how most of this app got here. Sleep better by understanding your nights, automatically.
What’s new
Version 4.63 · Updated October 12, 2026
Small update. Nothing changes in the app.
App privacy
The developer, Meng-Yi Hsu, reported these privacy practices to Apple.
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:
- Usage Data: Product Interaction
- Identifiers: Device ID
- Diagnostics: Crash Data
Used for: Analytics, App Functionality
Alternatives to SleepTracker: Watch or Phone
Looking for apps like SleepTracker: Watch or Phone? Here are 6 similar apps on the App Store. The highest rated is BodyEnergy – Body Battery (5.0/5), and all 6 are free to download.
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DaoBrew
-
BodyEnergy – Body Battery
5.0
-
Sleep Tracker App: SleepSimple
4.5
-
Sleep Tracker - Sounds & Tips
4.0
-
Yawn: Sleep Tracker
4.6
-
RIRLift: Hypertrophy Log
4.9
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| SleepTracker: Watch or Phone | – | Free | October 12, 2026 | |
| DaoBrew | – | Free | Jul 11, 2026 | Compare |
| BodyEnergy – Body Battery | 5.0 / 5 (2) | Free | Oct 19, 2026 | Compare |
| Sleep Tracker App: SleepSimple | 4.5 / 5 (2) | Free | May 13, 2026 | Compare |
| Sleep Tracker - Sounds & Tips | 4.0 / 5 (3) | Free | Sep 6, 2026 | Compare |
| Yawn: Sleep Tracker | 4.6 / 5 (10) | Free | Aug 26, 2026 | Compare |
| RIRLift: Hypertrophy Log | 4.9 / 5 (14) | Free | Oct 15, 2026 | Compare |