77
BU Score
Strong
HeartWatch: Herzfrequenz
✍️ BU Analytics Review
“
HeartWatch: Herzfrequenz is an iOS app from Tantsissa in the Health & Fitness category, currently rated 4.7★ across 13,583 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 77 — Strong (healthy traction). For a Health & Fitness app, that means healthy traction.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 12 of 12 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (13,583 ratings)METRIC | +$5,500 | |
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (10y old)METRIC | +$1,500 | |
| Multilingual (13 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| annoying adsREVIEW | −$1,100 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Mar 25
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 26
Feb 26
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 73 MB🔞 4+📱 iOS 11.0+🔖 v4.9🔄 updated 6mo ago🌐 NL, EN, FR, DE, IT +8📂 Health & Fitness💰 Paid🚀 Launched 2015 (10y old)
📝 About this app
"HeartWatch is so good, you’d think Apple built the app itself." John Patrick Pullen, Time Magazine. Top 5 in Health & Fitness in 100+ countries.
TOTAL PRIVACY
HeartWatch has no user analytics tracking. No advertising plugins. No 3rd party code. No data upload. Ask your "free" heart app if they can say the same.
ABOUT HEARTWATCH
HeartWatch is the best way to get a complete picture of all the health & fitness information captured by your Apple Watch.
NEWS
- Explore the different News Editions to learn all about your health progress and trends.
- Morning Briefing: read about your key health information to start your day
- Fitness Habits: news all about your fitness trends with a dynamic fitness habit tracker
WELLNESS
- An intelligent view of all key heart rate metrics. Daytime, Sedentary, Sleeping, Waking & Workouts.
- Detailed trend analysis including heart rate, blood pressure, HRV, blood glucose, blood oxygen (SpO2) and more.
- Background heart rate alerts on Watch with context.
- Note capture for individual heart rate readings.
- Detailed ECG analysis
ACTIVITY
- Every day isn’t the same. Intelligent move, distance & steps goals based on your current habits.
- Daily forecasting to help you stay on track to meet your goals.
WORKOUTS
- In depth analysis of heart rate, training summary, GPS maps and more.
- A heart focussed workout app on the Watch with custom alerts to keep you in the right zone.
- Detailed trend analysis.
- Stream workout info from your Watch to your iPhone.
JOURNAL & NOTES
- Keep a daily journal with notes and measurements
- View a detailed list with a complete overview of all notes, measurements and workouts
- Input notes and measurements from your Watch or iPhone. Includes blood pressure, temperature, blood glucose, weight, waist circumference and body fat percent.
GRAPHS & ANALYSIS
- Over 30+ health metrics to view
- Apply 7 day and 21 day trends to any metric, with the ability to overlap
- View over 6 weeks up to 12 months
EXPORT
- Export for all health metrics & workouts.
NOTHING IS MORE IMPORTANT THAN YOUR HEALTH
Heart Watch is a very useful tool to get alerted about any possible health issues in a concise format that you can show your medical practitioner.
INTEGRATION
HeartWatch connects beautifully with the Eclipse Yourself and AutoSleep apps, our premier sleep, activity, recovery and readiness monitoring apps.
HEART MONTH
Featured app in the official Apple Heart Month 2022:
https://www.apple.com/au/newsroom/2022/01/apple-celebrates-heart-month-with-new-resources-across-services
REQUIREMENTS
This app requires an iPhone that has the Health App installed. Heart readings are read from the Health Data Store which is ideally populated by your Apple Watch.
TOTAL PRIVACY
HeartWatch has no user analytics tracking. No advertising plugins. No 3rd party code. No data upload. Ask your "free" heart app if they can say the same.
ABOUT HEARTWATCH
HeartWatch is the best way to get a complete picture of all the health & fitness information captured by your Apple Watch.
NEWS
- Explore the different News Editions to learn all about your health progress and trends.
- Morning Briefing: read about your key health information to start your day
- Fitness Habits: news all about your fitness trends with a dynamic fitness habit tracker
WELLNESS
- An intelligent view of all key heart rate metrics. Daytime, Sedentary, Sleeping, Waking & Workouts.
- Detailed trend analysis including heart rate, blood pressure, HRV, blood glucose, blood oxygen (SpO2) and more.
- Background heart rate alerts on Watch with context.
- Note capture for individual heart rate readings.
- Detailed ECG analysis
ACTIVITY
- Every day isn’t the same. Intelligent move, distance & steps goals based on your current habits.
- Daily forecasting to help you stay on track to meet your goals.
WORKOUTS
- In depth analysis of heart rate, training summary, GPS maps and more.
- A heart focussed workout app on the Watch with custom alerts to keep you in the right zone.
- Detailed trend analysis.
- Stream workout info from your Watch to your iPhone.
JOURNAL & NOTES
- Keep a daily journal with notes and measurements
- View a detailed list with a complete overview of all notes, measurements and workouts
- Input notes and measurements from your Watch or iPhone. Includes blood pressure, temperature, blood glucose, weight, waist circumference and body fat percent.
GRAPHS & ANALYSIS
- Over 30+ health metrics to view
- Apply 7 day and 21 day trends to any metric, with the ability to overlap
- View over 6 weeks up to 12 months
EXPORT
- Export for all health metrics & workouts.
NOTHING IS MORE IMPORTANT THAN YOUR HEALTH
Heart Watch is a very useful tool to get alerted about any possible health issues in a concise format that you can show your medical practitioner.
INTEGRATION
HeartWatch connects beautifully with the Eclipse Yourself and AutoSleep apps, our premier sleep, activity, recovery and readiness monitoring apps.
HEART MONTH
Featured app in the official Apple Heart Month 2022:
https://www.apple.com/au/newsroom/2022/01/apple-celebrates-heart-month-with-new-resources-across-services
REQUIREMENTS
This app requires an iPhone that has the Health App installed. Heart readings are read from the Health Data Store which is ideally populated by your Apple Watch.
🆕 What's New · v4.9
Updated for iOS 26 and WatchOS 26.
Various fixes and maintenance.
Refer to our Whats New page for more detail: https://heartwatch.tantsissa.com/faq/whats-new
If your heart is loving HeartWatch, take a heartbeat to rate us 5 stars on the App Store! The great support helps us to keep monitoring your heart to better health.
Various fixes and maintenance.
Refer to our Whats New page for more detail: https://heartwatch.tantsissa.com/faq/whats-new
If your heart is loving HeartWatch, take a heartbeat to rate us 5 stars on the App Store! The great support helps us to keep monitoring your heart to better health.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- HeartWatch: Herzfrequenz
- Developer
- Tantsissa
- Bundle ID
- com.tantsissa.Heartbeat
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- NL, EN, FR, DE, IT, JA, KO, PT, RU, ZH, ES, SV, ZH
Company
- Website
- heartwatch.tantsissa.com
- Tagline
- 🇨🇳 🇯🇵 🇪🇸 🇰🇷 🇧🇷 🇳🇱 🇫🇷 🇩🇪 🇮🇹 🇹🇼 🇷🇺 🇸🇪
- Description
- 🇨🇳 🇯🇵 🇪🇸 🇰🇷 🇧🇷 🇳🇱 🇫🇷 🇩🇪 🇮🇹 🇹🇼 🇷🇺 🇸🇪
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $32.1K/mo
- Top-grossing rank
- Outside top 100 in US Health & Fitness
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://heartwatch.tantsissa.com/news
- Press / News
- Not found
Contacts & Socials
- Socials
- youtube
- Not found
- Phone
- Not found
- Contact page
- https://heartwatch.tantsissa.com/support
- About page
- Not found
📈Ratings growth13,583 ratings+29% lifetimeShow 3-year history estimate ▾
Tracked (58 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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