Empirical Sleep & apnea care vs Loopwell
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Empirical Sleep & apnea care
This app analyzes your Apple Watch health data to provide a simple sleep score and actionable advice for better sleep. It helps you understand your sleep stages, heart rate, and breathing patterns, and can assess your risk of sleep apnea.
- Sleep score analysis
- REM & deep sleep tracking
- Heart rate & HRV monitoring
- Sleep apnea risk assessment
- Actionable sleep improvement plan
- Native Apple Watch app
- Watch face & lock screen widgets
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Your Apple Watch tracks sleep stages, heart rate, heart rate variability (HRV), blood oxygen, ECG, temperature, sleep apnea, breathing disturbances, and more—but what does all that data mean? More importantly, what do you actually do to get more shut eye? If your Apple Watch detects sleep apnea, get medical care covered by insurance. Empirical Sleep distills your Apple Watch health data into one simple sleep score, then suggests actions to help you improve your sleep duration, onset, and quality. Unlike other free sleep trackers for Apple Watch, we're focused not just on more data, but helping you actually sleep better and get more shuteye. ** Sleep score ** Our sleep score auto combines everything into one simple number, including the percentage of time you spend in REM sleep, deep sleep, your heart rate, HRV, and oxygen during sleep, your sleep duration, and how long it took you to fall asleep. On the checkup screen, you can monitor your health stats against other users of Empirical Sleep and medical norms to understand where you're above, below, and right around the average. ** Take action to improve your sleep ** The goal of all this health monitoring isn't just tracking—it's to act and get better shuteye. The goals tab suggests a comprehensive plan to improve your sleep, including assessing sleep hygiene and risk of sleep apnea. ** Monitor your risk of sleep apnea ** 1 in 8 adults have sleep apnea. What's more, 80% of people with sleep apnea don't realize they have it. On the checkup screen, assess your risk of sleep apnea using a medically-validated questionnaire. If you receive an Apple Watch sleep apnea alert, book a priority appointment directly with a doctor for sleep apnea testing and treatment. ** Native Apple Watch app ** View your sleep duration, onset, quality, and stages (REM/deep/core/awake) directly on your watch using our native Apple Watch sleep app. ** Watch face & iPhone lock screen widgets ** Display your sleep stages, sleep duration, onset, and quality directly on your watch face or your iPhone's lock screen, using the new widgets introduced in iOS 16 and watchOS 9. ** Compatible, integrated with health, and free with an optional subscription ** Empirical Sleep is compatible with Apple Watch Series 3 and above. It integrates with the Health app to auto track your sleep segments, heart rate, HRV, blood oxygen (SpO2), steps, sleep stages, breathing disturbances, sleep apnea alerts, and activity. Empirical Sleep is a free app to download, with an optional paid subscription. ** About Empirical Health ** Empirical Health's mission is to build proactive healthcare. Today's healthcare system spends $1.1T reacting to chronic conditions and only a tenth of that on prevention. Our goal is to flip that and build a new type of primary care that's preventive rather than reactive, starting with sleep. Please seek a doctor’s advice in addition to using this app and before making any medical decisions. If you need a doctor, you book a video visit directly through this app. We accept most major health insurance.
Loopwell
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Loopwell is an interval timer that tells you what to do next, so you can stop watching the clock and get on with the work. Pick a preset or build your own: work, rest, rounds, warm up, cool down. Press start and Loopwell takes over — a big countdown you can read across the room, a distinct tone for every kind of step, and each step announced out loud. Put the phone face down. The cues keep going with the screen off. BUILD ANY INTERVAL PATTERN • Steps of any length, in any order, named however you like • Repeat the whole set up to 99 rounds, with optional rest between rounds • Get-ready countdown, warm up and cool down around the main set • Six presets to start from: Tabata, HIIT 40/20, EMOM, Focus 25/5, Run/Walk and a stretch flow • Duplicate any preset and reshape it into your own WHILE IT RUNS • One enormous countdown, colour-coded by step type • A progress ring for the current step and time left in the whole session • "Up next" so you always know what is coming • Pause, resume, skip forward, restart the step • Spoken step names and round numbers, plus a tick for the last three seconds • Cues duck your music instead of stopping it AFTERWARDS • Every finished session is logged with how long you actually spent • Sessions stopped early are recorded honestly, not rounded up • Weekly totals and a day streak MADE FOR ANY KIND OF INTERVAL Circuit training and Tabata. Running and walking. Stretching and mobility. Focus blocks and study sprints. Anything that repeats on a clock. PRIVACY BY DESIGN Loopwell has no sign-up, no login and no cloud. It contains no networking code at all, so nothing can leave your device. No analytics, no advertising, no tracking of any kind. Your timers and history live in a single file on this iPhone. BUILT FOR IOS Dark mode, Dynamic Type, VoiceOver labels and haptics throughout. Every tone is generated on device and step names are spoken by the system voice — the app bundles no audio files and no third-party content. Loopwell is a timing tool. It does not measure your heart rate, count repetitions, or give medical, fitness or health advice. Train sensibly and stop if something hurts.
Screenshots
Verdict
The clearest difference is in-app purchases: Loopwell at none against Empirical Sleep & apnea care's 12. Empirical Sleep & apnea care's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Empirical Sleep & apnea care sells 12 in-app purchases, starting at $4.99 per month. Loopwell asks for nothing beyond the download.
| Parameter | Empirical Sleep & apnea care | Loopwell |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (172 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 172 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 38 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Empirical Health, Inc. | Shenzhen Lichuang Zhiwei Technology Co., Ltd |
In-app purchases
Empirical Sleep & apnea care
- Empirical Pro$4.991 Month
- Empirical Pro$6.991 Year
- Empirical Pro7 Days trial$6.991 Month
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- Empirical Membership7 Days trial$9.001 Month
- Empirical Sleep Pro7 Days trial$9.991 Month
- Empirical Care$24.001 Month
- Empirical Pro$49.991 Year
- Empirical Pro7 Days trial$64.901 Year
- Empirical Membership7 Days trial$84.001 Year
- $94.99 per year7 Days trial$94.991 Year
- Six months$124.996 Months
- Annual subscription$194.991 Year
Loopwell
No in-app purchases
Questions
Is Empirical Sleep & apnea care free?
Is Loopwell free?
Do Empirical Sleep & apnea care or Loopwell have ads?
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