CapySleep vs SleepTrace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CapySleep
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Sleep better and understand your nights with CapySleep—a calm, privacy-first sleep companion for iPhone. Bring together Apple Health sleep data, personalized sleep coaching, optional on-device tracking, relaxing sounds, alarms, journaling, and a friendly capybara that reflects how you rested. No account is required, and your data stays on your device by default. UNDERSTAND YOUR SLEEP Sync sleep analysis from Apple Health and explore hypnograms, sleep stages, and your Capy Score. Review Awake, REM, Light, and Deep sleep, along with heart rate, HRV, and blood oxygen when available. Follow your history, weekly progress, sleep stories, and night-by-night insights. Improved sleep rings make your progress easier to follow. MEET CAPYSLEEP COACH Explore personalized insights that help you understand your sleep habits. CapySleep Coach brings your sleep history into focus, helping you reflect on your nights and build a more consistent routine. BUILD SLEEP STREAKS Grow your streak by meeting your sleep goal. Track your current streak and personal best, browse completed nights, and see how your week is going. Use streak freezes when life gets in the way and optional reminders to keep your habit going. TRACK SLEEP AND NAPS Start an overnight session, power nap, or recovery nap. Optional motion tracking estimates sleep stages using your device’s sensors. Record nighttime sounds when enabled. Motion and audio processing happen on your device. WIND DOWN WITH SLEEP SOUNDS Relax with deep-sleep sounds, nap tracks, colored noise, soundscapes, guided calm, breathing exercises, and CapySleep signature tracks. Set a sleep timer or choose music from Apple Music and your personal library. REDUCE BEDTIME DISTRACTIONS Use Bedtime App Lock to shield selected apps from bedtime until your scheduled wake time, helping you make space for rest. ALARMS AND SLEEP SCHEDULES Create bedtime and wake schedules, set sleep and nap alarms, snooze when you need more rest, and receive time-sensitive notifications when enabled. JOURNAL AND REFLECT Record your mood, write reflections, and connect entries with sleep and nap reviews. An improved journal experience makes it easier to capture and revisit your thoughts. Name your capybara and watch its gentle animations respond to how you rested. A REFRESHED EXPERIENCE Get started with updated onboarding and a refreshed Get Started guide. Enjoy an updated app icon, clearer sleep rings, and visual refinements throughout the app. SIRI, SHORTCUTS, AND WIDGETS Use Siri and Shortcuts to control sessions, sleep aids, and alarms, view your latest sleep, and add journal entries. Keep CapySleep close with Home Screen and Lock Screen widgets, and follow active sleep and power nap sessions through Live Activities. PRIVACY FIRST No account or sign-in is required. Your data stays on your device by default. Optional iCloud sync is available for CapySleep-generated sessions, recordings, journal data, and preferences. Your Apple Health data remains under your control. FREE AND CAPYSLEEP PRO CapySleep is free to download, with core tracking and limits on sleep-aid sounds, journal entries, and saved sessions. Optional annual CapySleep Pro unlocks the full sleep-aid library, Apple Music for alarms and sleep aids, full Sleep Details, unlimited history and journal entries, and recurring schedules. Eligible users can try annual CapySleep Pro free for 7 days. The subscription automatically renews unless canceled. Manage or cancel in your Apple Account subscription settings. Family Sharing is supported. Available in English, Filipino, Spanish, Japanese, Simplified Chinese, and Korean. CapySleep supports general wellness. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Privacy Policy: https://capysleep.github.io/privacy.html Terms of Use: https://capysleep.github.io/terms.html
SleepTrace
This app uses your iPhone's microphone to analyze sleep patterns and detect disturbances like snoring. It offers a smart alarm to wake you during lighter sleep phases and provides detailed statistics on your sleep quality.
- ML-powered sleep phase detection
- Smart alarm for natural wake-ups
- Snore and sound detection with audio clips
- Detailed sleep statistics and trends
- Customizable sleep schedule
- Apple Health integration
- Live Activity on Lock Screen
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Do you wake up tired in the morning — even though you slept enough? SleepTrace uses your iPhone's microphone to record audio all night and detect your sleep phases using Machine Learning. No wearable needed — just your iPhone next to the bed. SLEEP PHASE DETECTION (ML-POWERED) • Detects: Awake, Light Sleep (N1), Deep Sleep, REM • Based on audio analysis (Mel spectrograms + CoreML) • Classification every 30 seconds • Sleep phase timeline after every night SMART ALARM • Set a wake-up window (e.g. 6:30–7:00) • SleepTrace wakes you in the lightest sleep phase • Result: Wake up naturally, less groggy • Choose from different alarm sounds SOUND DETECTION • Detects loud events: snoring, coughing, talking, ambient noise • Saves short audio clips with labels • Listen in the morning to what happened at night • Decibel measurement included STATISTICS & TRENDS • Calendar overview of all nights • Sleep phase chart per night • Details: sleep duration, time to fall asleep, wake-up time • Trends over weeks and months • Session details with sound clips SLEEP SCHEDULE • Weekly sleep schedule (Mon–Sun) • Individual sleep and wake times per day • Alarm syncs automatically with your schedule LIVE ACTIVITY • Shows on Lock Screen & Dynamic Island: tracking duration, detected clips, alarm time APPLE HEALTH INTEGRATION • Writes sleep data to Apple Health • Reads health data (optional) STREAK SYSTEM • Motivates daily tracking • Streak card shows consecutive nights • Milestone notifications (3, 7, 14, 30, 60, 100 days) PREMIUM • Monthly and yearly subscription • Premium features including cloud backup of audio clips Understand and improve your sleep — with just your iPhone. Terms of Use (EULA): https://sleeptrace.app/legal/terms-of-use/
Screenshots
Verdict
The clearest difference is update cadence: CapySleep at fortnightly against SleepTrace's every 6 weeks. On price, ads, in-app purchases and device support 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
Both are free to download. CapySleep sells 1 in-app purchase, starting at $9.99 per year and SleepTrace sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
CapySleep ships an update fortnightly, SleepTrace every 6 weeks. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.
| Parameter | CapySleep | SleepTrace |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 356 MB | 202 MB |
| Age rating | 12+ | 17+ |
| Developer | Marc Allen Lopez | Jan Kohlhaas |
In-app purchases
CapySleep
- CapySleep Pro$9.991 Year
SleepTrace
- SleepTrace Premium (Monthly)7 Days trial$6.991 Month
- SleepTrace Premium (Annual)7 Days trial$39.991 Year









