Free
$0forever
- Basic sleep score
- 7-day history
- 3 AI coaching insights (lifetime preview)
- Sleep stage visualization
- Evening check-in
- Not included: Unlimited AI coaching
- Not included: 30/60/90-day trends
- Not included: Weekly AI sleep report
iPhone apps
LiveiPhone app
Sleep apps show charts. SleepArchitect suggests changes. Based on your own biometrics.
SleepArchitect correlates your Apple Watch biometrics with daily habits to look for patterns in your sleep. On-device AI generates coaching from your data. Your data stays on your phone.
- Platform
- iPhone app
- Status
- Live in the App Store
- Price
- Free / $9.99/mo Premium
01In the App Store
What it looks like, from its own listing.
These are the screenshots NexaSphere publishes on the App Store listing, shown as they appear there.
02The problem
The part of the job it is for.
- 01
Charts without guidance
Sleep apps show HRV graphs, sleep stage breakdowns and trend lines. They show that you slept badly, but not which habit to change.
- 02
Generic tips
Advice such as avoid caffeine after 2pm may not match your own pattern. SleepArchitect analyzes your data to look for yours.
- 03
Privacy
Sleep, heart rate variability and blood oxygen are personal. SleepArchitect processes them on your iPhone.
- 04
Too many dashboards
Several apps with several scores can be hard to act on. SleepArchitect gives you one score and one coaching insight a day.
Without SleepArchitect
- Sleep charts with no clear next step
- Generic advice that ignores your patterns
- Biometric data uploaded to cloud servers
- Conflicting scores from different apps
- Manual sleep diaries
With SleepArchitect
- One coaching insight each morning
- A correlation engine that works from your own data
- On-device AI processing, no cloud uploads
- A single composite score
- Habit tracking through a short evening check-in
03What it does
What it does.
- 01
Composite sleep score (0 to 100)
Weighted algorithm combining duration, deep sleep, REM, latency, HRV, blood oxygen, and wake interruptions. One number that summarizes how you slept.
- 02
Habit correlation engine
Finds patterns in your own data using Pearson correlation analysis, with confidence scores. Insights are drawn from at least 14 days of your own data.
- 03
On-device AI coaching
Foundation Models run on your iPhone's Neural Engine. No internet is needed and there are no cloud APIs. Coaching works in airplane mode.
- 04
Evening check-in
A short habit log covering caffeine, exercise, screen time, alcohol, stress, meals, and supplements. The data your correlation engine needs to find your patterns.
- 05
Apple Watch Integration
Auto-imports sleep stages, HRV, blood oxygen, respiratory rate, and wrist temperature every morning via HealthKit.
- 06
7, 30 and 90 day trend analysis
Annotated Swift Charts with rolling averages, habit event markers, and score progression. See when your sleep changed.
- 07
Bedtime reminders
Personalized notifications with your own stats: Your last 4 on-time nights scored an average of 74.
- 08
Siri Shortcuts
Ask Siri how you slept to get a hands-free morning summary with your sleep score, top insight, and coaching tip for the day.
- 09
Weekly AI sleep report
ProFoundation Models generate a weekly summary correlating your habits, biometrics, and sleep quality trends. Shareable as a screenshot.
- 10
Apple Watch complication
See your sleep score on your watch face. Check last night's score without opening the app.
04Pricing
What it costs.
Premium
$9.99/momonthly
- Unlimited AI coaching insights
- Habit correlation engine
- 30/60/90-day trend analysis
- Weekly AI sleep report
- Smart bedtime reminders
- Data export (CSV)
- Nap detection
- Priority support
Annual
$79.99/yryearly
- Everything in Premium
- Billed yearly (about $6.67/mo)
- Sleep Reset Challenge program
- Early access to new features
05Questions
Questions people ask first.
Do I need an Apple Watch?
No, but the Watch adds more data. Without a Watch, you can enter sleep data by hand and still use habit correlation and AI coaching. The Watch imports biometrics automatically and adds HRV, blood oxygen and respiratory rate data.
What does SleepArchitect do beyond tracking?
It looks for correlations between your habits and your sleep, shows confidence scores, and suggests specific changes.
Is my data really private?
All AI runs on-device via Apple Foundation Models. Your data stays on your phone. There are no cloud APIs and no analytics SDKs, and the app works in airplane mode.
When will I see results?
The correlation engine needs 14 days of data before it shows personalized insights.
What about Apple's built-in sleep tracking?
Apple's sleep tracking shows your sleep data. SleepArchitect reads the same HealthKit data and adds AI coaching, habit correlation and trend analysis.
Get coaching from your sleep data
Download SleepArchitect to see your sleep score and coaching. Correlation insights appear after 14 days of data.