Features & Capabilities

Introducing NextSense Smartbuds, the world’s first brain-responsive earbuds. Built for sleep, meditation, and designed for everyday use, Smartbuds sense your brain activity in real time and respond with audio that helps you rest better, so you wake up restored, focused, and ready to take on the day.

The NextSense app is your companion to Smartbuds, giving you tools to personalize your audio experience and uncover meaningful insights into your sleep. Pair your buds with the app to access detailed sleep reports, calming soundscapes, and guidance for better sleep.

What you unlock with Smartbuds + the NextSense app

Track Your Slow Waves

See when your brain enters its most restorative state, giving you a superior measure of sleep depth and recovery.

Slow Wave Boost Gentle pink noise enhances slow wave activity, leaving you more refreshed in the morning, without needing more time in bed.

Personalized Insights Explore daily and long-term trends related total sleep time, wake-ups, sleep efficiency, and more.

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 calm the mind, block out snores, and support deep rest.

Gentle alarm Ease into your morning with calming sounds that slowly build, delivered right through your Smartbuds.

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 HRV, sleep, weight, and date of birth to improve your sleep staging insights, and personalize your bedtime audio.
  • 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

User Growth & Download Statistics

App
By:
Lucid Reality
Version:
1.0.91 Last updated: 2026-06-05
Version code:
886558368
Creation date:
2025-12-19
Compatible devices:
Size:
1.38GB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-12
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Lucid Reality
Apple Apps Store
https://apps.apple.com/us/app/nextsense/id6636482744
Website:
https://nextsense.io/

User Reviews

Overall, NextSense shows potential. Several users report meaningful sleep benefits and improved deep sleep, plus enjoyable soundscapes and masking for noise. The app offers useful features for daily use and occasional focus benefits. However, multiple reviewers flag reliability and usability issues: sleep-tracking can be inconsistent across devices, firmware/app updates may cause auto-start problems or render devices unusable, and sound controls are sometimes non-intuitive or overly loud. With improvements, it could mature into a solid sleep-and-work companion.
Pros
  • Significant sleep quality improvements and deeper sleep on nights using the earbuds.
  • Great soundscapes and effective masking/noise reduction with a comfortable fit.
  • Useful features for daily use with potential focus/energy benefits.
Cons
  • Sleep-tracking results can be inconsistent across devices and users.
  • Reliability issues tied to updates: auto-start flaky after firmware updates and updates can render the devices unusable.
  • Sound controls are not intuitive and can cause loud, undesired boosts.
Recent reviews
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.
by Sh*****, 2026-05-23

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.
by jb*****, 2026-05-19

Amazing meditation feature now with brain adaptive music
by JB*****, 2026-05-18
View all user reviews ›

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