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80
BU Score
Excellent

Cardi Mate: Heart Rate Monitor

4.7 ✍️ Editor
✍️ 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 80Excellent (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
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💰 Forecast Revenue / mo

MODEL
Revenue 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

LIVE
Cumulative 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

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each 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

🆕 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

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
LinkedIn
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
Email
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 ▾May 2023May 2025May 2026
Tracked (50 weeks) Pre-tracking estimate (35 weeks) · model-based, ±5% noise · anchored to release date and current value
🗺️Geographic DistributionTop 10Top 30Top 60
BR#39
📊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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