80
BU Score
Excellent
Cardi Mate: Heart Rate Monitor
✍️ BU Analytics Review
“
Cardi Mate: Heart Rate Monitor is an iOS app from Gismart Limited in the Health & Fitness category, currently rated 4.7★ across 48,635 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 80 — Excellent (strong product-market fit). For a Health & Fitness app, that means strong product-market fit.
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 14 of 14 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (48,635 ratings)METRIC | +$5,500 | |
| subscriptionREVIEW | +$2,500 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| 5 starREVIEW | +$1,800 | |
| cancelledREVIEW | −$1,500 | |
| excellent appREVIEW | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| free trialREVIEW | +$1,200 | |
| too expensiveREVIEW | −$1,000 | |
| priceyREVIEW | −$800 | |
| Established app (4y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Localized (7 languages)METRIC | +$600 |
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
Jan 25
Feb 25
Mar 25
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Feb 26
Mar 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 →💾 219 MB🔞 4+📱 iOS 16.0+🔖 v1.67🔄 updated 9mo ago🌐 EN, FR, DE, IT, PT +2📂 Health & Fitness💰 Paid🚀 Launched 2021 (4y old)
📝 About this app
Take control over your health with Cardi Mate. Knowing your vital signs is half the battle in protecting your well-being and improving your lifestyle. Think of Cardi Mate as your personal healthcare diary. In the app, you can track and record your vital signs — all in one easy-to-access place. Store data, use the app to monitor changes in your charts and keep an eye on your health stats. Track your health progress as you go and make sure to record those vital details in the diary.
FEATURES:
- Personal statistics. Track changes in your vitals, monitor your heart rate, and more. Log your data consistently and have an overview of your heart health at your fingertips.
- Pulse & blood pressure diary. Keep healthy and log your heart rate statistics in the app.
- Heart rate variability. You can tell a lot by the time in between each heartbeat. HRV measures this time and gives you an indicator of how your heart health is.
- Sync the app with Apple Health for optimal heart and overall health tracking. With the extensive data collected by Apple Watch, Cardi Mate will help you gain deep insights into your heart vitals.
The app contains the following subscription options:
- Weekly at $ 7.99 with a 3-day free trial.
- Payment will be charged to iTunes Account at confirmation of purchase.
- Subscription automatically renews unless auto-renew is turned off at least 24-hours prior to the end of the current period.
- The account is charged for renewal within 24-hours before the end of the current period.
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase.
- The cost of renewal is equal to the value that “Apple’s App Store Matrix” determines as the equivalent of the subscription price in $USD.
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication.
Disclaimer
Cardi Mate’s content is not medical advice, a diagnosis, or a treatment plan for any type of heart disease. And it should never be substituted for a treatment plan by your doctor or specialist. If you are experiencing any medical heart condition or have concerns, please consult your healthcare provider before commencing any program.
- Please note that the app doesn't measure blood pressure and oxygen levels, you can only record and keep metrics.
Privacy Policy: https://cardimate.com/privacy-policy
Terms of Service: https://cardimate.com/terms-of-use
FEATURES:
- Personal statistics. Track changes in your vitals, monitor your heart rate, and more. Log your data consistently and have an overview of your heart health at your fingertips.
- Pulse & blood pressure diary. Keep healthy and log your heart rate statistics in the app.
- Heart rate variability. You can tell a lot by the time in between each heartbeat. HRV measures this time and gives you an indicator of how your heart health is.
- Sync the app with Apple Health for optimal heart and overall health tracking. With the extensive data collected by Apple Watch, Cardi Mate will help you gain deep insights into your heart vitals.
The app contains the following subscription options:
- Weekly at $ 7.99 with a 3-day free trial.
- Payment will be charged to iTunes Account at confirmation of purchase.
- Subscription automatically renews unless auto-renew is turned off at least 24-hours prior to the end of the current period.
- The account is charged for renewal within 24-hours before the end of the current period.
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase.
- The cost of renewal is equal to the value that “Apple’s App Store Matrix” determines as the equivalent of the subscription price in $USD.
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication.
Disclaimer
Cardi Mate’s content is not medical advice, a diagnosis, or a treatment plan for any type of heart disease. And it should never be substituted for a treatment plan by your doctor or specialist. If you are experiencing any medical heart condition or have concerns, please consult your healthcare provider before commencing any program.
- Please note that the app doesn't measure blood pressure and oxygen levels, you can only record and keep metrics.
Privacy Policy: https://cardimate.com/privacy-policy
Terms of Service: https://cardimate.com/terms-of-use
🆕 What's New · v1.67
We hope you’re enjoying the app! Please, keep it regularly updated to always have our greatest features and latest improvements.
- Performance and stability improvements
- Bugs fixes
- Performance and stability improvements
- Bugs fixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Cardi Mate: Heart Rate Monitor
- Developer
- Gismart Limited
- Bundle ID
- heart.rate.harmonybit.com
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, FR, DE, IT, PT, ZH, ES
Company
- Website
- Not found
- Tagline
- Gismart is a mobile app developer with award-winning products in Health, Wellness, Utilities & Music and over 1 billion downloads across the globe.
- Description
- Gismart creates mobile apps that help millions of people around the world get healthier and enhance their well-being. Find the perfect app for your wellness journey today!
- 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
- $22.5K/mo
- Top-grossing rank
- 🇧🇷#39 /100
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- https://www.linkedin.com/company/gismart/
- 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://gismart.com/blog/
- Press / News
- Not found
Contacts & Socials
- Socials
- facebook · instagram · linkedin
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://gismart.com/about-us/
📈Ratings growth48,635 ratings+113% lifetimeShow 3-year history estimate ▾
Tracked (50 weeks) Pre-tracking estimate (35 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic Distribution●Top 10●Top 30●Top 60
📊Category Rank Trajectory#39 now · best #36 · worst #100
Lower line = better rank · Estimate from ratings growth model · Lower position on chart = worse rank · Higher = top of chart
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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