Comparison

Spatial Sleep vs FitCentral

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spatial Sleep

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
Read full description

Sleep better, wake sharper — naturally. Discover Spatial Sleep: the science-backed app clinically proven to help you fall asleep faster, stay asleep longer, and wake up feeling refreshed. Pair with our innovative wearable headband to play gentle acoustic resonance harmonies that gently guide your brain into deep, restorative sleep. Created by a dream team of Stanford University Medical School physicians and technology industry leaders, Spatial Sleep is safe to use, drug-free, and non-invasive. Our innovation utilizes machine learning technology to compose acoustic resonance harmonies tailored to your unique physiology. In clinical studies, participants who used the band nightly over 4 weeks saw the strongest results with insomnia severity dropping by up to 50%. After a great night’s sleep with Spatial, start your day right with breathwork exercises designed exclusively for us by Yoga and Ayurveda experts, or play a brain teaser game to boost alertness and focus. No meds. No side effects. Just better nights and brighter mornings. Download Spatial Sleep and experience sleep — reimagined. Please consult your doctor before making any medical decisions. Any feedback? Contact us at hello@spatialsleep.com Additional information including the privacy policy, biometric notice and terms of use can be found at https://spatialsleep.com

About

FitCentral

Manage workouts, nutrition, and progress in one app. If you train with a personal trainer using the platform, their programs, meal plans, and messages are accessible here. Track measurements, photos, and trends to stay motivated.

Highlights
  • Workout logging and video demonstrations
  • Meal plan tracking with food database
  • Body measurement and progress photo logging
  • Trainer program and message integration
  • Direct in-app messaging with trainers
  • Session scheduling and reminders
Read full description

FitCentral keeps your workouts, nutrition, and progress together in one place. And if you train with a personal trainer who uses FitCentral, everything they send you lives here too. Workouts: Follow your training program, log every set as you go, and watch demonstration videos so your form stays sharp. Nutrition: Follow your meal plan, log meals with a built-in food database, and stay on top of your goals. Progress: Record body measurements, take progress photos, and watch your trends over time on clean, simple charts. Hit personal records and feel the wins. Working with your trainer: If you already train with a personal trainer who uses FitCentral, their programs, meal plans, and messages show up right here. Submit check-ins, message them directly, and keep your sessions and reminders in one place. Check-ins: Stay in close contact with the person guiding your training and keep your progress moving. Messages: Talk to your trainer directly in the app. Ask questions, send form videos, and get answers quickly. Sessions: See your schedule, keep your sessions in one place, and get reminders so you never miss one. FitCentral keeps your whole training life in one place, so you can focus on the work and the results. Co-founded by a practicing personal trainer who uses the platform every day with his own clients. Questions? Email hello@fitcentral.co

Screenshots

Spatial Sleep4 screens
FitCentral4 screens

Verdict

The call

The clearest difference is update cadence: FitCentral at every 2 days against Spatial Sleep's every 3 months. FitCentral also leads on rating (5.0 vs 4.6) and iOS requirement (15.0 vs 17.6). 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

FitCentral holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 11 and 4 respectively.

UpkeepUpdate frequency

Spatial Sleep ships an update every 3 months, FitCentral every 2 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Spatial Sleep versus FitCentral: the parameters behind the verdict, then further details
ParameterSpatial SleepFitCentral
PriceFreeFree
Rating4.6 (11 ratings)5.0 (4 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11 — better4
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size131 MB12 MB
Age rating4+4+
DeveloperSound Health Systems, Inc.FitCentral LLC

Customer experience

Spatial Sleep

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

FitCentral

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Spatial Sleep

No in-app purchases

None

FitCentral

No in-app purchases

Questions

Is Spatial Sleep free?
Spatial Sleep is free to download, with no in-app purchases.
Is FitCentral free?
FitCentral is free to download, with no in-app purchases.
Which has better reviews, Spatial Sleep or FitCentral?
FitCentral is rated higher. Spatial Sleep averages 4.6 out of 5 from 11 ratings, while FitCentral averages 5.0 from 4 ratings.
Do Spatial Sleep or FitCentral have ads?
Neither Spatial Sleep nor FitCentral shows ads.
Which is updated more often, Spatial Sleep or FitCentral?
Spatial Sleep ships an update every 3 months, and FitCentral every 2 days. Most recently, Spatial Sleep was updated on October 2, 2026 and FitCentral on October 8, 2026.

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