Sleep Tracker App WellSleep vs CalmAnchor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sleep Tracker App WellSleep
This app helps you understand and improve your sleep using your iPhone's sensors and sound analysis. It provides insights into sleep patterns, detects sounds, and offers a smart alarm to help you wake up refreshed. Access advanced features with a premium subscription.
- Phone-based sleep tracking
- Sleep stage insights
- Daily sleep score
- Snore and sound detection
- Sleep debt tracking
- Smart wake alarm
- Sleep sound library
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Master your sleep. Unlock your energy. WellSleep is a professional sleep assistant designed to help you better understand and improve your rest using only your iPhone. With sound analysis, motion sensing, and personalized sleep insights, WellSleep helps you visualize your sleep patterns, understand sleep debt, and build healthier sleep routines—without requiring a wearable device. Stop wondering why you wake up tired. Understand your nights, improve your sleep habits, and make the most of your days. THE SCIENCE OF REST WellSleep goes beyond basic sleep timers. By combining sleep tracking with insights into sleep duration, consistency, movement, and nighttime sounds, WellSleep helps you better understand your personal sleep patterns. CORE FEATURES Advanced Sleep Analytics Phone-Based Sleep Tracking No wearable device required. Simply place your iPhone near your bed, and WellSleep uses its sensors and sound analysis to monitor your sleep throughout the night. Sleep Stage Insights Explore estimated Deep, REM, and Light sleep periods through movement and acoustic patterns to better understand your nightly sleep. Daily Sleep Score Receive a personalized score each morning based on factors such as sleep duration, sleep quality, and consistency. Sound & Snore Detection Snore & Sound Detection Detect and record snoring, sleep talking, and nighttime environmental sounds that may affect your sleep. Nighttime Sound Insights Review detected sounds and identify patterns that may be associated with changes in your sleep quality. Sleep & Energy Management Sleep Debt Keep track of your accumulated sleep deficit and receive personalized insights to help you establish more consistent sleep habits. Sleep Rhythm Understand your sleeping and waking patterns and identify when you tend to feel more alert or tired throughout the day. Smart Alarm & Sleep Aids Smart Wake Wake up more gently by allowing WellSleep to monitor your sleep and choose an appropriate wake-up moment within your selected alarm window. Sleep Sound Library Relax and fall asleep with a curated collection of white noise, ASMR, rain sounds, ambient audio, and guided meditation. WELLSLEEP PREMIUM An active WellSleep Premium subscription is required to access the following features: • Sleep Recording • Sleep Analysis • Sleep Tracking • Sleep & Relaxation Music These features require an active in-app subscription and cannot be used without a WellSleep Premium subscription. Subscription options and pricing are displayed in the app before purchase. PRIVACY BY DESIGN Your privacy is our priority. Local Processing Audio recordings used for sound and snore detection are processed locally on your iPhone whenever supported by the feature. Data Ownership Your sleep data belongs to you. We do not sell your personal information to third parties. Privacy Policy: https://zhufengtech.com/privacy.html Terms of Use: https://zhufengtech.com/terms.html
CalmAnchor
This app provides immediate, practical tools for managing anxiety and building lasting calm. It offers evidence-based techniques, a personalized healing journey, and features like Panic SOS and guided journaling.
- Panic SOS for instant relief
- Personalized 30-day healing plan
- Guided daily journal entries
- Mood and anxiety analytics
- Healing streaks for motivation
- Private journaling, no account needed
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Having a panic attack? Tap once. CalmAnchor opens straight into Panic SOS from a Lock Screen widget: 5-4-3-2-1 grounding, then six slow guided breaths with a live countdown in your Dynamic Island. Rate how intense it feels before and after, and watch it come down. Then it helps you need it less. Check in on your mood, follow a 30-day plan built around your triggers, and earn your way up the ranks as calm becomes a habit. PANIC SOS — FREE • One tap from your Lock Screen widget into a guided session • 5-4-3-2-1 grounding to bring you back to the present • Six slow breaths (in 4, hold 4, out 4) with a Dynamic Island countdown • Calming affirmations and a before-and-after intensity check • A coping library: box breathing, 4-7-8, body scan, thought records and more • The 988 Lifeline and Crisis Text Line, one tap away EARN YOUR CALM RANK — NEW • 50 badges to unlock, from First Anchor to secret moments like Night Watch • An Anchor Pass that levels up through 20 ranks, from Sea Glass to Pearl • Celebrations for streaks, badges and new ranks, with cards you can share • Daily quests, plus a grace day so one missed day doesn't erase your streak • Your week in calm: a story recap of your sessions, moods and wins LASTING CALM — PREMIUM • A personalized 30-day plan built around your triggers • A guided journal with gratitude, affirmations and free writing • Mood and anxiety trends over 7 days, 30 days or all time PRIVATE BY DESIGN Your journal, moods and sessions stay on your iPhone. No account, no ads. CalmAnchor is a self-help and wellness tool, not a substitute for professional medical advice, diagnosis or treatment. If you're in crisis, call or text 988 or your local emergency number. SUBSCRIPTION & LEGAL CalmAnchor offers auto-renewable subscriptions (weekly, monthly, yearly) and an optional one-time Lifetime purchase. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period; manage or cancel in your Apple Account settings. Terms of Use (EULA): https://gwlabs.app/terms Privacy Policy: https://gwlabs.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: CalmAnchor at none against Sleep Tracker App WellSleep's 3. Sleep Tracker App WellSleep's advantage is device support (3 vs 1) and iOS requirement (15.2 vs 18.0). On price, update cadence, ads and monetization model 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. Sleep Tracker App WellSleep sells 3 in-app purchases, starting at $9.99 per 7 days. CalmAnchor asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.
| Parameter | Sleep Tracker App WellSleep | CalmAnchor |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.2 — better | 18.0 |
| Further details — not scored | ||
| Size | 378 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Hong Kong Zhufeng Technology Co., Limited | GW Capital Partners LLC |
Customer experience
Sleep Tracker App WellSleep
CalmAnchor
In-app purchases
Sleep Tracker App WellSleep
- Weekly Premium Pass3 Days trial$9.997 Days
- Annual Premium Pass3 Days trial$59.991 Year
- Lifetime Unlimited Access$69.99
CalmAnchor
No in-app purchases
Questions
Is Sleep Tracker App WellSleep free?
Is CalmAnchor free?
Do Sleep Tracker App WellSleep or CalmAnchor have ads?
Which is updated more often, Sleep Tracker App WellSleep or CalmAnchor?
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