Optimal HRV vs Somnee
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optimal HRV
Monitor, analyze, and improve your Heart Rate Variability (HRV) scores. This app offers personalized training, biofeedback, and stress-reducing activities to enhance health, reduce stress, and improve mental clarity.
- Real-time HRV monitoring
- Personalized training plans
- Guided meditation and breathing exercises
- Comprehensive data analysis
- Stress response insights
- Biofeedback optimization
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Are you feeling stressed, burned out, or just not yourself? Optimal HRV is the guided biofeedback app that teaches your body to calm down — for real. Backed by a Harvard Medical School mindfulness expert and trusted by athletes worldwide. Optimal HRV pairs real HRV data with live biofeedback, so every session trains your nervous system to handle stress better — not just tells you that you're stressed. Why HRV and Biofeedback Training Work Your Heart Rate Variability (HRV) is a window into how well your body handles stress, anxiety, and recovery — and biofeedback is how you train it to improve. Together, they show you what's happening inside your body, then guide you to change it in real time. With Optimal HRV, you can: • See how stressed — or relaxed — your body really is, using real HRV data. • Learn what actually helps you recover, from sleep to workouts to busy workdays. • Use live biofeedback to train your body to relax faster, right as it's happening. • Discover your own personal "perfect breathing rhythm" through guided sessions. Features You'll Actually Use • Daily Check-Ins — take a quick reading each morning, or anytime you want to see how you're doing. • Your Perfect Breathing Rhythm — a simple test finds the exact breathing pace that works best for you. • Live Feedback While You Train — a simple on-screen guide shows you when you're doing it just right. • Calming Mindfulness Sessions — guided practices created with a Harvard Medical School mindfulness expert, covering stress, anxiety, pain management, athletic performance, and more, with calming narrations in your choice of voice. • Easy-to-Read Progress — see your trends over days, weeks, and months, no data expertise needed. • Video Tutorials — learn HRV concepts and techniques at your own pace. • Make It Yours — adjust sounds, pacing, and reminders so training fits your life. • Available in 14 Languages — use Optimal HRV in your native language. • Device Testing — quickly verify if your heart rate monitor works with the app. • Great for Teams Too — employers and coaches can track group wellness together (Dashboard access needed). Why Optimal HRV Works with External Sensors (Not Apple Watch) We choose precision over convenience. Apple Watch is great for daily wellness, but Optimal HRV is built for serious HRV training. That's why we connect directly to an HRV monitor via Bluetooth — they deliver millisecond-accurate R‑R intervals that wrist sensors can't match. What that means for you: • More accurate data – better insights, better decisions. • Real-time streaming – no gaps, no guesswork. • Reliable results – trusted by athletes and coaches worldwide. Love Optimal HRV? Leave a review and help others find their calm. Your feedback helps us improve and reaches more people who need stress relief. Try it free for 30 days and feel the difference for yourself. Download now and start training your nervous system today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Somnee
This app works with a smart headband to improve sleep quality using personalized neurostimulation and EEG tracking. It provides detailed sleep reports and insights to help you sleep faster, longer, and deeper.
- Personalized sleep neurostimulation
- Clinical-grade EEG sleep tracking
- Detailed sleep performance reports
- AI sleep coach
- Phone-free session start
- Comfortable, breathable headband design
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Meet Somnee, the app that works with the award-winning smart sleep headband that directly improves sleep quality and decodes nightly sleep performance for unrivalled insights. As your own clinical-grade AI sleep coach, Somnee pairs proven personalized neurostimulation that helps you naturally sleep faster, longer, and deeper, with precise sleep reports powered by lab-grade EEG tracking. IMPROVE 360° SLEEP HEALTH Somnee is proven to cut time to fall asleep by 50%, reduce wake-ups by 33%, and boost total sleep time by ~30 min. It’s 4x more effective than melatonin, 2x more effective than CBT-i, and 1.5x more effective than Ambien. PERSONALIZED SLEEP NEUROSTIMULATION Somnee maps the unique way your brain sleeps, then delivers gentle frequencies to boost your optimal sleep signals. The result: a dynamic, effective, 100% personalized sleep system that evolves with you as your sleep changes over time. BRAIN-BASED TRACKING + SLEEP REPORTS Clinical-grade EEG+ sensors collect precise brainwave data straight from the source, uploading 40x more sleep data than most trackers. Explore reports featuring insights into sleep onset, sleep stages, and more. PHONE-FREE USE, ALL-NIGHT COMFORT Start sessions phone-free with just the click of the headband button. Somnee’s soft, breathable fabric and innovative design molds to you for maximum comfort, no matter how you sleep. MADE BY WORLD-RENOWNED SLEEP NEUROSCIENTISTS Developed over 7 years of R&D by Dr. Matthew Walker (Author of NYT Bestseller, “Why We Sleep”), Dr. Bob T. Knight. Dr. Ram Gurumoorthy, and Dr. Rich Irvy — Somnee leverages cutting edge neuroscience used by top sleep labs for decades, now made available from the comfort of home. Our real-world results are clinically proven and published in the peer-reviewed scientific journal, Frontiers in Human Neuroscience. Have questions? We’re here to help. Email us at support@somneesleep.com. Terms of Use: www.somneesleep.com/pages/privacy-policy-and-terms-of-use/ www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Somnee at 63% against Optimal HRV's 17%. Somnee also leads on rating (3.7 vs 3.0) and in-app purchases (none vs 3). Optimal HRV's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and device support 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. Optimal HRV sells 3 in-app purchases, starting at $9.99 per month. Somnee asks for nothing beyond the download.
Somnee holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 24 and 71 respectively. Written reviews point the same way: 17% of Optimal HRV's written reviews are positive against 63% of Somnee's.
Optimal HRV ships an update fortnightly, Somnee every 2 months. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.
| Parameter | Optimal HRV | Somnee |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (24 ratings) | 3.7 (71 ratings) — better |
| Positive reviews | 16.7% of reviews | 63.3% of reviews — better |
| Number of ratings | 24 | 71 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 52 MB | 164 MB |
| Age rating | 4+ | 4+ |
| Developer | Optimal, LLC | StimScience |
Customer experience
Optimal HRV
Somnee
Bugs and requests
Optimal HRV
Not enough reviews yet to summarise bugs or requests.
Somnee
Reported bugs
18 issues- App malfunctions and prevents use
- Sleep reports are delayed or unavailable
- Device asks for reset in the middle of the night but won't restart
- App stops tracking sleep if woken up and button is pressed
- Device inaccurately registers sleep patterns (e.g., REM sleep)
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- App says user is not due for another session after taking device off
- Headband falls off frequently
- App is not intuitive and lacks instruction
- New UI is missing reports
- Headband is not reliable and asks for reset
- App is buggy and prevents use (e.g., 'cool down mode')
- Bad connection with electrodes
- Device doesn't track sleep stages
- Customer service is evasive with answers
- Trial period starts from order date, not activation date
- Subscription is required for cancellation
- App is extremely buggy and data is useless
- App prevents use due to 'cool down mode'
Requested features
8 requests- Add more sleep tones or meditation sounds
- Provide a better tutorial on data interpretation
- Improve headband design for comfort
- Offer bulk electrode sales
- Provide warranty on the headband
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- Add a dark mode to the app
- Track sleep stages for real-time feedback
- Easier way to update payment information
In-app purchases
Optimal HRV
- 1 month1 Month trial$9.991 Month
- 6 Month1 Month trial$47.996 Months
- One Year1 Month trial$59.991 Year
Somnee
No in-app purchases









