# Spatial Sleep vs NextSense

Spatial Sleep and NextSense both sit at 4.6 stars, but that hides the real split: 50% of NextSense's written reviews are positive against 0% of Spatial Sleep's. NextSense also leads on update cadence (every 6 days vs every 3 months) and ratings volume (55 vs 11). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for Spatial Sleep against 4.7 for NextSense. That said, the two scores are not equally well evidenced: NextSense has 55 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 0% of Spatial Sleep's written reviews are positive against 50% of NextSense's.

Spatial Sleep ships an update every 3 months, NextSense every 6 days. The most recent releases landed on June 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Spatial Sleep | NextSense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (11 ratings)](https://appshunter.io/ios/app/spatial-sleep/id6449580101/reviews) | **[4.7 (55 ratings)](https://appshunter.io/ios/app/nextsense/id6636482744/reviews)** |
| Number of ratings | 11 | **55** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 131 MB | 2.1 GB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sound Health Systems, Inc.](https://appshunter.io/developer/1500011226) | [Lucid Reality](https://appshunter.io/developer/1417122334) |

## What reviewers say

### Spatial Sleep

[App page](https://appshunter.io/ios/app/spatial-sleep/id6449580101)

This science-backed app uses acoustic resonance harmonies, paired with a wearable headband, to help users fall asleep faster, stay asleep longer, and wake up refreshed. It offers drug-free, non-invasive sleep support and includes post-sleep breathwork and brain teaser games.

**Highlights:** Acoustic resonance harmonies for sleep, Wearable headband integration, Clinically proven sleep improvement, Drug-free and non-invasive, Personalized harmonies via machine learning, Post-sleep breathwork exercises, Brain teaser games for alertness

**Features:** macOS Compatibility

**In-app purchases:** none


### NextSense

[App page](https://appshunter.io/ios/app/nextsense/id6636482744)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Spatial Sleep free?

Spatial Sleep is free to download, with no in-app purchases.

### Is NextSense free?

NextSense is free to download, with no in-app purchases.

### Which has better reviews, Spatial Sleep or NextSense?

NextSense is rated higher. Spatial Sleep averages 4.6 out of 5 from 11 ratings, while NextSense averages 4.7 from 55 ratings.

### Do Spatial Sleep or NextSense have ads?

Neither Spatial Sleep nor NextSense shows ads.

### Which is updated more often, Spatial Sleep or NextSense?

Spatial Sleep ships an update every 3 months, and NextSense every 6 days. Most recently, Spatial Sleep was updated on June 4, 2026 and NextSense on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*