Somnus: AI Sleep Tracker
Sebastian Olsen Health & Fitness iPhoneiPadiPod touch
Somnus: AI Sleep Tracker is a free Health & Fitness app for iPhone and iPad by Sebastian Olsen. Rated 5.0/5 from 1 ratings. Requires iOS 26.0.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 16 MB
- Age 17+
- Updated
- Mar 22
- 2026 · v1.1
Screenshots
About Somnus: AI Sleep Tracker
What if your sleep data could tell you exactly what to change? Somnus doesn't just track sleep — it finds hidden patterns between your daily habits and sleep quality, then gives you a system to prove they work. All analysis runs on-device using Apple Intelligence. Your health data never leaves your phone. DISCOVER WHAT DRIVES YOUR SLEEP Somnus analyses 25+ health signals — sleep stages, heart rate, HRV, steps, exercise, bedtime consistency, and more — to find the specific habits that move your sleep score. Not generic tips. Your patterns, from your data. - Personalised insights backed by statistical evidence - Causal pattern detection: find what improves your sleep, not just what correlates - Confidence levels show how strong each signal is - Categories: Sleep, Activity, Recovery, Circadian, Stress RUN SLEEP EXPERIMENTS Found a pattern? Test it. Create structured plans to prove whether a habit change works — with measurable before-and-after tracking. - Set targets like "bed by 11 PM" or "run 3x per week" - Automatic daily hit/miss adherence detection - Compare sleep scores on target nights vs off-target nights - AI-generated weekly reviews summarise progress - Track record calendar, streaks, and impact analytics SLEEP SCORE BUILT ON SCIENCE Your nightly score draws from four research-backed pillars: duration, continuity, regularity, and sleep architecture. Apple Watch stage data adds deep sleep and REM analysis. - "Vs Usual" comparison for every night - 7, 30, and 90-day trends - Perceived sleep slider: how you feel vs what the data shows - Tap any night for a full breakdown 100% ON-DEVICE. ZERO CLOUD. Apple Intelligence generates personalised narratives and plan summaries entirely on your iPhone. No accounts. No uploads. No ads. No tracking. FREE - Nightly sleep score with detailed breakdown - 7 and 30-day trend charts - Perceived sleep tracking - Your first data-driven insight SOMNUS PRO - Full insight library with 25+ behavioural signals - Sleep experiment system with plans and analytics - Advanced recovery metrics (HRV, resting HR, respiratory rate) - AI-powered weekly plan reviews - Causal pattern detection engine Prices vary by location. Payment charged to your Apple ID. Subscriptions auto-renew unless cancelled 24 hours before the period ends. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://sebo17.wixsite.com/thryve/somnus-privacy Somnus requires Apple Health and works best with Apple Watch or a compatible sleep tracker. Somnus provides data-driven insights, not medical advice. Consult a healthcare professional for medical concerns.
What’s new
Version 1.1 · Updated March 22, 2026
Thanks for the amazing reception since launch! This update makes Somnus even better: Faster first-launch experience - see your first insight sooner Optimised analysis pipeline for quicker pattern detection Stability and reliability improvements Keep the feedback coming!
App privacy
The developer, Sebastian Olsen, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Purchases: Purchase History
Used for: Analytics, App Functionality
Alternatives to Somnus: AI Sleep Tracker
Looking for apps like Somnus: AI Sleep Tracker? Here are 6 similar apps on the App Store. The highest rated is Sleep Tracker AI Coach – Lull (5.0/5), and all 6 are free to download.
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Good Sleep Trainer
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Sleep Tracker - Cycle Monitor
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Sleep Tracker AI Coach – Lull
5.0
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RecoverFit: HRV & Recovery
1.0
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Caffeine Tracker - SipLog
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Aura: Sleep Journey & Calm
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Somnus: AI Sleep Tracker | 5.0 / 5 (1 rating) | Free | March 22, 2026 | |
| Good Sleep Trainer | – | Free | Nov 11, 2025 | Compare |
| Sleep Tracker - Cycle Monitor | – | Free | Sep 17, 2026 | Compare |
| Sleep Tracker AI Coach – Lull | 5.0 / 5 (1) | Free | Aug 30, 2026 | Compare |
| RecoverFit: HRV & Recovery | 1.0 / 5 (1) | Free | May 11, 2026 | Compare |
| Caffeine Tracker - SipLog | – | Free | Oct 10, 2026 | Compare |
| Aura: Sleep Journey & Calm | 5.0 / 5 (2) | Free | Aug 15, 2026 | Compare |