📊 1.2M Android Apps Tracked Updated 3 min ago ⚡ Revenue Forecasts
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73
BU Score
Strong

Heart Rate Monitor

4.5 ✍️ Editor
✍️ BU Analytics Review

Heart Rate Monitor is an Android app from Health & Fitness AI Lab in the Health & Fitness category, currently rated 4.5★ across 31,833 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 73Strong (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.

📊 Performance Tracking LIVE

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idle
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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
Range:

💰 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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (31,833 ratings)METRIC
+$5,500
Excellent rating (4.5★)METRIC
+$2,200
Established app (7y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$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.

⭐ 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 →
🔖 v0.3.22🔄 updated 6mo ago📂 Health & Fitness💰 Free📺 Ad-supported🚀 Launched 2018 (7y old)

📝 About this app

<b> Measure, record and track your heart rate easily </b>
1. You can measure heart rate (HR).
2. You can turn off hot flashlight. (top-right flashlight icon)
3. Unlimited measurements.
4. Additional features. (e.g., csv export, heartrate zone)

<b> Support heartrate zone calculation </b>
1. Target heart rate is important for the best workout and exercise results
2. Support 5 heart rate zones (i.e., extreme/peak, cardio, fat burn, warm up, resting)
3. Useful for interval training, CrossFit, cycling, running and weight control.

<b>Beautiful UIs</b>
1. Statistic UI with graphs. (e.g., min/max/avg)
2. Interactive UI for heart rate zone.
3. Simple, but very effective UI.

<b> Support auto backup (> Android 6.0) and free csv export </b>

<b> How to use our heart rate monitoring app </b>
* Our app uses your phone's camera to check bpm. Just gently cover your fingertip on the back camera lens and stay still, then your heart beat will be counted after a few seconds. When you turn off flashlight, please measure in sunlight or bright region.

* Heart rate monitor is very important for health and fitness. You can easily measure, record and track your heart rate by using our app. Note that our app will show HR in terms of beats per minute (BPM).

* We would appreciate your valuable feedback. Please report bugs or request features to bluefish12390@gmail.com.

<b>DISCLAIMER</b>
- Our heart rate monitor app should not be used as medical device.
- Our app does not detect blood pressure.
- Our app is not FDA approved.
- Our app is not intended for any heart disease or condition diagnosis.
- Our app may make the LED flash very hot.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Heart Rate Monitor
Developer
Health & Fitness AI Lab
Bundle ID
com.bluefish.heartrate
App Store URL
Open in App Store
Category
Health & Fitness
Content rating
Not found
Languages
Not found

Company

Website
smartailab.blogspot.com
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$1.5K/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
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
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
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Contact page
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About page
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📈Ratings growth31,833 ratings+36% lifetimeShow 3-year history estimate ▾May 2023Dec 2024May 2026
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
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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