Heart Analyzer vs AutoSleep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heart Analyzer
Gain deep insights into your heart health using data from your Apple Watch. Visualize trends, analyze metrics like Cardio Recovery and Heart Rate Zones, and generate detailed PDF reports. Offers advanced features and privacy-focused data handling.
- Dashboard with daily summaries
- Visualized heart rate and health data charts
- Health vital trend assessment
- Cardio Recovery and Heart Rate Zone analysis
- Exportable PDF heart reports
- ECG data comparison
- HRV rMSSD and heart rate calibration
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Heart Analyzer helps you track Heart Rate, HRV, Resting Heart Rate, Cardio Recovery, Sleep and ECG trends using Apple Watch. Analyze your Health data with advanced charts, insights, Heart Reports, widgets and detailed heart analytics powered by Apple Health. Set your own high and low heart rate alerts, take control of your HRV data in the new HRV Center, and see your sleep in detail with multiple sessions, naps and time out of bed. ------------------------------------------------ ■ Simple PRIVACY ------------------------------------------------ ◎ No third party analytics ◎ No health data ever leaves your device ◎ No modifications to your health data ------------------------------------------------ ■ FEATURES ------------------------------------------------ ◎ The Dashboard - Where you can swipe between days, scroll through summaries and tap into the details ◎ Charts - Heart Rate and other Health data visualized through metrics and trends of any given day ◎ Insights - Effortlessly assess your Health Vital trends ◎ Heart Rate Alerts - Choose your own high and low heart rate limits, set mute times, and opt to be notified only on sustained changes ◎ HRV Center - Control the quality and context of the Heart Rate Variability data behind your trends ◎ Sleep - Multiple sleep sessions, naps and time out of bed, with your heart rate through the night ◎ Analytics Plus - Gain a unique understanding of important metrics such as Cardio Recovery, Heart Rate Zones and plenty more ◎ Heart Reports - Generate and export tailored PDFs including a large selection of metrics with custom timescales and password protection support ◎ Bookmarks - Highlight specific days of interest, make notes on relevant details ◎ Widgets - Interact with your Home Screen and track your Heart Rate, Resting Heart Rate trends and more at a glance ◎ ECGs - Compare and analyze data recorded by Apple Watch ◎ Advanced features - Including HRV rMSSD, Heart Rate Calibration, Custom Heart Rate Zones, Smart Heart Rate Recovery and more ------------------------------------------------ ■ APPLE WATCH ------------------------------------------------ ◎ A re-designed app showing your Heart Rate over the day ◎ Heart Rate Alerts on your wrist, with no complication needed on your watch face ◎ Charts with you on the go for Move, Exercise, Cardio Points, HRV, Blood Oxygen Saturation and Resting Heart Rate ◎ Workouts right on your wrist, tap into the detail as soon as you finish your exercise ◎ Customizable complications to keep you up to date with your Heart Rate and also support for Blood Oxygen Saturation, Heart Rate Variability and Resting Heart Rate trends HEALTH SUPPORT INCLUDES: - Heart Rate - Resting Heart Rate - Blood Pressure (Systolic & Diastolic) - Electrocardiogram (ECG/EKG) - Blood Oxygen Saturation (SPO2) - Cardio Fitness (VO2Max) - Heart Rate Variability (SDNN & rMSSD) - Respiratory Rate - Breathing Disturbances - Workouts - Sleep Times, Sessions & Naps - Heart Rate Recovery - Apple Fitness & Activity - High & Low Heart Rate Notifications Heart Analyzer Premium is available as an optional monthly or annual subscription. You can also choose a one-time Lifetime Access purchase. Payment will be charged to your Apple ID account. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription at any time in your App Store account settings. Additional Terms of Use: https://www.helixapps.co.uk/heart-analyzer-terms-of-use Please Note: - Heart Analyzer integrates with the Apple Health App to read your Heart Rate and other Health data - Heart Analyzer is available on iPad with iCloud sync for Apple Health data enabled. However, you still need an iPhone with a paired Apple Watch to generate Health data to display in Heart Analyzer - To get the most out of Heart Analyzer, an iPhone with a paired Apple Watch is required
AutoSleep
Automatically tracks your sleep using your Apple Watch without manual input. Offers detailed insights into sleep duration, quality, and various physiological metrics. Integrates with Apple Health and provides smart alarm features.
- Automatic sleep tracking
- Detailed sleep analysis
- Sleep Stages integration
- Smart alarm
- Privacy focused
- Heart rate and respiration tracking
- Wrist temperature monitoring
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Automatically track your sleep from your Apple Watch*. No buttons to press. Even the Watch app is optional! Just sleep! Total Privacy. ------------- AutoSleep has no user analytics tracking. No advertising plugins. No 3rd party code. No data upload. Ask your "free" sleep app if they can say the same. Everything Included. -------------------- No extra In App Purchases. No subscriptions. Apple Sleep Stages ----------------- Full integration with Sleep Stages from the Apple Sleep app, so you have the option to use the Apple Sleep app and view all the information in AutoSleep. Functions ----------------- AutoSleep includes all the information and functionality you need for sleep monitoring, including: Time Asleep – sleep duration and sleep bank balance Sleep Rating – a consolidated rating score of your sleep Sleep Rings – fill your sleep rings with quality sleep, including heart rate, deep sleep and REM Apple Sleep Stages – option to use the data from the Apple Sleep app Sleep Apnea - discover if you have sleep apnea Sleep Blood Oxygen – measurements while sleeping Respiration Rate – track your breathes per minute Noise – environmental noise measurements Sleep Analysis – view detailed graphs and breakups on your sleep cycles Sleep Fuel – measure the quality and efficiency of your sleep Snoring Intensity - using the AutoSnore app, view how snoring impacts your sleep quality Tonight’s Bedtime – recommends your latest bedtime based on your habits Readiness – indicates your physical and mental stress Temperature – track your sleeping wrist temperature Sleep Consistency – learn about your time to bed behaviours Lights Off – track the time to fall asleep Live Sleep Tracking – view your sleep statistics during the night Smart Alarm – Watch in-built smart alarm to help you wake in lighter sleep Widgets – fantastic range of iPhone widgets Complications – multiple Watch face options HomeKit – full integration with Apple HomeKit Emojis & Notes – record comments and tags to your sleep session Explore – deep dive analytics views Siri – use with Siri voice commands Shortcuts – create your own shortcuts that you use with AutoSleep Adjust – a simple function to adjust sleep/wake detection individual to you History – advanced graphs and trends Configuration – change the theme and design your clock sleep rings Setup – customise your sleep goals, setup notifications and reminders Exports – exporting options to save your data About AutoSleep ----------------- Using Advanced Heuristics AutoSleep works out how long you've slept so you don't have to. If you DO wear your Watch to bed, you don't need to do a single thing. AutoSleep will track your sleep & quality and send you a notification in the morning. Even if you don't wear your Watch to bed, AutoSleep can track your time in bed. It's extremely simple. If you DON'T wear your Watch to bed, then simply take your Watch off before you go to sleep. As soon as you touch your iPhone or put your Watch back on in the morning then AutoSleep will know that you have finished sleeping. As everyone is a little bit different. AutoSleep provides a simple setup wizard and an option to tweak if you are a very restless sleeper. AutoSleep also integrates beautifully with the Eclipse Yourself and HeartWatch apps, our premier heart, health, activity, recovery and readiness monitoring apps. *Requires Apple Watch running WatchOS 4 or higher. Awards ----------------- Best of 2018 https://apps.apple.com/story/id1438574124/ Best of 2019 https://apps.apple.com/story/id1484100916/ Best of 2020 https://apps.apple.com/story/id1535572713/ Best of 2021 https://apps.apple.com/story/id1591083005/ Best of 2022 https://apps.apple.com/story/id1654240446 Best of 2023 https://apps.apple.com/story/id1719170110
Screenshots
Verdict
The clearest difference is price: Heart Analyzer at Free against AutoSleep's $9.99. Heart Analyzer also leads on update cadence (weekly vs every 2 months). AutoSleep's advantage is in-app purchases (none vs 7) and chart position (#1 vs unranked). On rating, review sentiment, ratings volume and ads 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
Heart Analyzer is free to download; AutoSleep costs $9.99 up front. Heart Analyzer sells 7 in-app purchases, starting at $3.99 per month. AutoSleep asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Heart Analyzer against 4.7 for AutoSleep. Both are backed by a comparable volume of ratings — 22K and 62K respectively. Written reviews are what separate them: 84% of Heart Analyzer's written reviews are positive against 80% of AutoSleep's.
Heart Analyzer ships an update weekly, AutoSleep every 2 months. Both last shipped on November 1, 2026.
| Parameter | Heart Analyzer | AutoSleep |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.7 (22K ratings) | 4.7 (62K ratings) — better |
| Positive reviews | 84.2% of reviews — better | 79.6% of reviews |
| Number of ratings | 22K | 62K — better |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #1 — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 17.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Helix Apps LTD | Tantsissa |
Customer experience
Heart Analyzer
AutoSleep
User reviews
Heart Analyzer
From 22K App Store ratingsWhat we love
- 🚀 Great app for health monitoring
- 👍 Packed with useful information
- 🚀 Excellent visualizations and charts
- 👍 Easy to use and understand
- 👍 Helpful for monitoring heart conditions
Room to improve
- 🐛 Occasional crashes or bugs
- 🔋 Drains Apple Watch battery
- 🔍 Needs more explanation of metrics
- 🔍 Visuals could be improved for easier reading
- 🔍 Automatic updates to complications not reliable
AutoSleep
From 62K App Store ratingsWhat we love
- 🚀 One time purchase, no subscription
- 👍 Comprehensive sleep tracking and insights
- 🔍 Detailed data and visualizations
- ⌚ Seamless Apple Watch integration
- 🔋 Minimal battery drain on Apple Watch
Room to improve
- 🐛 Inconsistent or inaccurate sleep tracking
- 🤔 Complicated interface and settings
- 🔋 High battery drain on Apple Watch
- 🤔 Difficulty calibrating and adjusting settings
- 🤔 Confusing or overwhelming data presentation
Bugs and requests
Heart Analyzer
Reported bugs
3 issues- Premium features not working as expected
- Syncing issues between iPhone and Apple Watch
- Oxygen level tracking not functioning properly
Requested features
4 requests- Add blood pressure monitoring
- Allow generating reports for current month
- Improve ECG interpretation guidance
- Add option to customize Apple Watch complications
AutoSleep
Reported bugs
4 issues- App crashes or stops working after updates
- Sleep data disappearing or not syncing properly
- Incorrect sleep time and wake up detection
- Issues with Apple Watch connectivity and data transfer
Requested features
5 requests- Add support for REM sleep tracking
- Improve smart alarm functionality
- Allow setting custom sleep/wake time windows
- Add more personalization and customization options
- Improve integration with other health/fitness apps
In-app purchases
Heart Analyzer
- Monthly$3.991 Month
- Annual$24.991 Year
- Data Plus$9.99
- Reports Plus$9.99
- Analytics Plus$9.99
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- Complete Premium$24.99
- Lifetime Access$49.99
AutoSleep
No in-app purchases









