Somnee vs NextSense
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
NextSense
This app works with brain-responsive earbuds to enhance sleep quality. It tracks brain activity to personalize audio, offering insights into sleep patterns and a gentle alarm. Integration with Apple Health provides further personalized data.
- Brainwave tracking for sleep depth
- Personalized audio for better rest
- Detailed sleep reports and trends
- Automatic audio pause when asleep
- Nap mode with timer and soundscapes
- Soothing sound library
- Gentle alarm with calming sounds
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Introducing NextSense Smartbuds, the world’s first brain-responsive earbuds. Designed for everyday use, Smartbuds sense brain activity in real time and respond with audio that helps you rest deeper, center your mind, and stay sharp all day. The NextSense app is your companion to Smartbuds, giving you tools to personalize your audio experience and uncover meaningful insights into your daily and nightly rhythms. Pair your buds with the app to access dynamic soundscapes, launch sessions, and review trends. What you unlock with Smartbuds + the NextSense app Deeper Sleep See when your brain enters slow wave sleep, giving you a superior measure of sleep depth and recovery. Gentle pink noise enhances slow wave activity, leaving you more refreshed in the morning Focus Sessions Boost your focus with audio that gently nudges your brainwaves into a more alert state. Get recommendations on when to schedule deep work for peak performance. Meaningful Meditation Choose from brain-responsive and guided tracks that help you find your calm. Session summaries help you understand and improve your practice. Sleep Sync Your audio automatically pauses once sensors detect you’ve fallen asleep, so you’ll never lose your place in that audiobook. Nap Mode Reset midday with a nap session. Simply set a timer, choose a soundscape, and unwind. If you drift off, your nap is added to the day’s sleep total. Soothing Sound Library Choose from a collection of original soundscapes designed to give your brain exactly what it needs to meet the moment. Gentle alarm Ease into your morning with calming sounds that slowly build, delivered right through your Smartbuds. Personalized Insights Explore daily and long-term trends related total sleep time, wake-ups, sleep efficiency, and more. Privacy Policy and Terms of Service Learn more about how we handle your data and terms of use: Privacy Policy: https://nextsense.io/policies/privacy-policy Terms of Service: https://nextsense.io/policies/terms-of-service *Note: The NextSense app requires NextSense Smartbuds hardware. Apple Health integration - Reads date of birth, sex, heart rate, HRV, respiratory rate, VO2 max, sleep, weight, steps, exercise time, and time in daylight to personalize you insights, and audio experience. - Used only to improve your health and sleep experience, never for advertising or selling your data - Users can opt out or change permissions anytime in the Health app
Screenshots
Verdict
The clearest difference is rating: NextSense at 4.7 against Somnee's 3.7. NextSense also leads on monetization model (free vs paid) and update cadence (every 6 days vs every 2 months). Somnee's advantage is review sentiment (64% vs 50%) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
NextSense holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 71 and 55 respectively. Written reviews complicate that: 64% of Somnee's written reviews are positive against 50% of NextSense's, so the app with the better star average is not the one people write more warmly about.
Somnee ships an update every 2 months, NextSense every 6 days. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.
| Parameter | Somnee | NextSense |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (71 ratings) | 4.7 (55 ratings) — better |
| Positive reviews | 64.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 71 — better | 55 |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 164 MB | 2.1 GB |
| Age rating | 4+ | 4+ |
| Developer | StimScience | Lucid Reality |
Customer experience
Somnee
NextSense
Bugs and 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
NextSense
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Somnee
No in-app purchases
NextSense
No in-app purchases
