# Spatial Sleep vs KB Fit

The clearest difference is review sentiment: KB Fit at 100% against Spatial Sleep's 0%. KB Fit also leads on update cadence (every 3 weeks vs every 5 months) and rating (5.0 vs 4.6). Spatial Sleep's advantage is ratings volume (11 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

KB Fit holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Spatial Sleep has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Spatial Sleep's written reviews are positive against 100% of KB Fit's.

Spatial Sleep ships an update every 5 months, KB Fit every 3 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Spatial Sleep | KB Fit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (11 ratings)](https://appshunter.io/ios/app/spatial-sleep/id6449580101/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kb-fit/id6502945407/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 181 MB | 132 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sound Health Systems, Inc.](https://appshunter.io/developer/1500011226) | [Kelsey Barnes](https://appshunter.io/developer/1747505716) |

## 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, Vision Pro support

**In-app purchases:** none


### KB Fit

[App page](https://appshunter.io/ios/app/kb-fit/id6502945407)

This app offers personalized workout and meal plans to help you achieve your fitness goals. Track your progress, log meals, and connect with your coach for real-time support and video sessions. It integrates with health kits for comprehensive data analysis.

**Highlights:** Personalized workout plans, Customized meal plans, Nutrition, hydration, and habit tracking, 1-on-1 chat with coach, Video call sessions with coach, Progress tracking and analytics, Wearable device integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spatial Sleep free?

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

### Is KB Fit free?

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

### Which has better reviews, Spatial Sleep or KB Fit?

KB Fit is rated higher. Spatial Sleep averages 4.6 out of 5 from 11 ratings, while KB Fit averages 5.0 from 1 ratings.

### Do Spatial Sleep or KB Fit have ads?

Neither Spatial Sleep nor KB Fit shows ads.

### Which is updated more often, Spatial Sleep or KB Fit?

Spatial Sleep ships an update every 5 months, and KB Fit every 3 weeks. Most recently, Spatial Sleep was updated on November 7, 2026 and KB Fit on November 4, 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.*