# NextSense — Brain-responsive sleep earbuds > Brain-responsive sleep earbuds companion for personalized audio and sleep insights. (iPhone/iPad app by Lucid Reality.) - Source: https://appshunter.io/ios/app/nextsense/id6636482744 (this page in markdown: same URL + `.md`) - Developer: [Lucid Reality](https://appshunter.io/developer/1417122334) - Category: Health & Fitness, Music - Price: Free - Rating: 4.70/5 from 46 App Store ratings · 21 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 2.1 GB - Languages: American English - Released: 2025-12-19 - Data updated: 2026-08-30 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/nextsense/id6636482744/reviews.md ## What is NextSense? 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 ## Key features - 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 ## Recent user reviews (10 of 21) All indexed reviews: https://appshunter.io/ios/app/nextsense/id6636482744/reviews.md ### 5/5 — Great to fall asleep to *2026-06-18* These buds have some of my favorite fall asleep sounds that let me drift off consistently. EEG features are great! I love that I don’t lose my spot if I watch a show or listen to a book. I do feel more refreshed when using them, though they are so from traditional trackers. Pair well with Apple Watch or other low lift device to get intricacies of sleep. ### 5/5 — Better rest days before busy days *2026-06-18* I use NextSense buds a few times a week, particularly before stressful deadlines, important meetings, travel, or short nights. The soundscapes help me relax, and I appreciate being able to track my sleep afterward. ### 5/5 — Phenomenal *2026-06-18* Boosted my sleep, was able to sleep 3 hrs less and have same deep sleep. Great for meditation, love the soundscapes and really enjoy tracking my naps as well ### 1/5 — Way too loud for sleeping *2026-06-16* Unable to lower the volume, too noisy to sleep with. Seems to be a software bug when you launch sleep, the volume gets locked. Not comfortable as a side sleeper. Prefer the hatch even if it plays to the room. Really wanted to like this and was so curious about the metrics. Ugh, returning. ### 1/5 — Doesn’t connect *2026-06-02* the connection feature is buggy and doesn’t work so I can’t even use them. the small strips have been removed as instructed. case open. it doesn’t reliably flash for connection, and when it does, it still can’t connect. I’m fairly good with hardware and trying different approaches. don’t buy until they fix this. I will update my review when/if they do. ### 1/5 — Disappointed *2026-05-23* I’ve been using the NextSense Smartbuds for about 4 months and honestly, I regret buying them. Comfort / Fit I’m mostly a side sleeper, and despite trying different tip sizes, these become uncomfortable after a while. Not “slightly annoying” uncomfortable. More like “why does it feel like there’s Legos in my ears?” uncomfortable. Connection Issues Getting both earbuds connected properly is weirdly frustrating. I’ll get the right side showing a good connection, leave it completely alone, adjust the left side, and suddenly the right side disconnects. Since you need both earbuds connected for full sleep tracking, it turns into a nightly mini-game I never wanted to play. Soundscape Problems When I first got them, the Soundscape feature worked pretty well. I’d play background noise and it would continue until I fell asleep, usually 20 minutes or so. Now? It shuts off after about 5 minutes because the app says “sleep detected.” Apparently blinking too slowly now counts as REM sleep. I restart it over and over, but same issue every time. If I force the Soundscape to play all night instead of stopping when it incorrectly thinks I’m asleep, the batteries don’t even last 7 hours anyway. Battery / Charging Charging is also oddly finicky. You have to position the earbuds in the case just right or they don’t charge properly. More than once I’ve gone to bed assuming they were charged, only to find one dead halfway through the night even though the case showed full charge. Sleep Tracking Accuracy The tracking feels wildly inaccurate. I recently had a migraine and know for a fact I only slept around 3 to 4 hours. The app proudly informed me I got 7 hours and 3 minutes of sleep. If that’s true, I’d also like the app to explain why I felt like roadkill all day. I’ve also gotten up in the middle of the night, walked to the bathroom, and the app still claimed I was asleep the whole time. Customer Support I contacted support, explained the issues, requested a refund, and so far… crickets. Subscription Pricing This part really annoyed me. They used to offer a monthly replacement/tip subscription around $15/month. Now they’ve “upgraded” it to: * 3 months for $59.99 * 6 months for $99.99 * 12 months for $149.99 For silicone ear tips. Silicone ear tips. I updated the app recently, so maybe something improves, but at this point I’m not optimistic. For the price, I expected something polished and reliable. Instead, I got uncomfortable earbuds, questionable sleep data, and an app that thinks I’m sleeping while walking around my house. ### 1/5 — I had high hopes *2026-05-19* It’s 2:30 a.m. I am wide awake. I’m wondering why I don’t hear any sound lulling me back to sleep. I look at the app. It says , “active sleep detected.” I get up to go to the bathroom and it still says it’s detecting active asleep. Oh wow! I must be dreaming that I’m wide awake and writing this at 2:30 in the morning. Sending them back. ### 5/5 — Meditation *2026-05-18* Amazing meditation feature now with brain adaptive music **Developer response:** Thank you so much — an extra hour of sleep is a real, meaningful difference, and we love hearing that you're seeing it in your boost numbers. That's exactly what we built Smartbuds to do. Keep it up, and don't hesitate to reach out to hello@nextsense.io if you ever need anything. ### 2/5 — Disappointing *2026-05-11* I often get zero slow waves, zero boosts. The app in the morning says the connection is poor even though it’s good when I go to bed, I’ve checked it in the middle of the night and it was still good. Also the battery life isn’t great. The audio turns off when you go to sleep, but doesn’t turn back on when you wake up. You have the option of running it all night however that would drain the battery that barely is enough to power the ear buds for the night. ### 1/5 — App doesn’t work *2026-05-06* Received my earbuds on May 4, 2026 and spent more than 4 hours trying to learn-in the earbuds into the app installed on my iphone14 including many AI recommendations without success. Returning these tomorrow. ## Frequently asked questions about NextSense ### Does NextSense have ads? No, NextSense does not contain advertisements. The app is free to use and does not display any ads. ### What devices support NextSense? The NextSense app is currently supported on iPhone devices. Compatibility with other platforms may be considered in future updates. ### How accurate is NextSense's sleep tracking? NextSense tracks slow wave activity, which is presented as a superior measure of sleep depth and recovery. It integrates with Apple Health to improve sleep staging insights. ### Can I use NextSense without the Smartbuds? No, the NextSense app requires the NextSense Smartbuds hardware to function. The app serves as the companion interface for the earbuds' features. ### What kind of audio does NextSense offer? NextSense provides a library of original soundscapes designed to calm the mind, block out distractions, and support deep rest. The audio is personalized based on your brain activity. ### How does NextSense handle my data? NextSense uses your data, including Apple Health information, solely to improve your sleep experience and personalize audio. Your data is not used for advertising or sold, and you can manage permissions in the Health app. ### What is the age rating for NextSense? NextSense has an age rating of 4+. This indicates it is suitable for users aged 4 and above. ### How often is NextSense updated? The latest version of NextSense is 1.0.57, last updated on March 26, 2026. Updates are released periodically to improve functionality and add features. ## Version history (last 5 releases) ### 1.0.132 — 2026-08-27 Better earbud battery Sleep reliability improvements Audio and stability fixes ### 1.0.131 — 2026-08-20 More accurate and complete sleep tracking through the night Earbud long press now works from either bud to restart audio mid sleep session New Lynx focus soundscape, plus audio playback fixes Tips & Wings life now based on hours of actual wear instead of days ### 1.0.130 — 2026-08-19 Improved overnight battery life Improved alarm reliability Faster startup, better earbud reconnection Wind-down and meditation polish ### 1.0.129 — 2026-08-14 - Bug fixes and stability improvements ### 1.0.125 — 2026-08-06 - Bug fixes and stability improvements ## Apps similar to NextSense | App | Rating | Price | Category | | --- | --- | --- | --- | | [Eli Health](https://appshunter.io/ios/app/eli-health/id6471992170) | 4.6 (282) | Free | Health & Fitness | | [Orion Sleep](https://appshunter.io/ios/app/orion-sleep/id6748622216) | 4.7 (35) | Free | Health & Fitness | | [Neurable](https://appshunter.io/ios/app/neurable/id6590635333) | 4.9 (90) | Free | Health & Fitness | | [Spatial Sleep](https://appshunter.io/ios/app/spatial-sleep/id6449580101) | 4.6 (11) | Free | Health & Fitness | | [Elemind](https://appshunter.io/ios/app/elemind/id6502909319) | 3.3 (4) | Free | Health & Fitness | | [Somnee](https://appshunter.io/ios/app/somnee/id6445828473) | 3.7 (71) | Free | Health & Fitness | ## More apps by Lucid Reality - [Lucid Reality](https://appshunter.io/ios/app/lucid-reality/id1417122335) All apps by Lucid Reality: https://appshunter.io/developer/1417122334 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*