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73
BU Score
Strong

AccuRate Heart Rate Monitor

4.6 ✍️ Editor
✍️ BU Analytics Review

AccuRate Heart Rate Monitor is an iOS app from Oxford Fitness Ltd in the Health & Fitness category, currently rated 4.6★ across 2,145 ratings. Initial signal reads as mostly critical sentiment so far — users flag rough edges and unmet expectations.

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
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
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 10 of 10 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
subscriptionREVIEW
+$2,500
Excellent rating (4.6★)METRIC
+$2,200
5 starREVIEW
+$1,800
cancelledREVIEW
−$1,500
Low install base (2,145 ratings)METRIC
+$1,500
free trialREVIEW
+$1,200
intuitive designREVIEW
+$1,000
Established app (4y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Single-language (English only)METRIC
−$400
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
Apr 25
May 25
Jun 25
Jul 25
Aug 25
Sep 25
Oct 25
Nov 25
Dec 25
Jan 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 →
💾 43 MB🔞 4+📱 iOS 14.0+🔖 v3.4🔄 updated 7mo ago🌐 EN📂 Health & Fitness💰 Paid🚀 Launched 2021 (4y old)

📝 About this app

Heart rate is an important measure of health and fitness. Using Heart Rate Monitor app, you can measure and monitor your heart rate quickly anytime, anywhere!

* Free with unlimited recordings
* Easy to use with an intuitive design
* Track your heart rate over time with simple graphs
* Detailed history
* Export and share your data
* HealthKit Integration: Automatically save your heart rates to Apple Health App
* No additional hardware is required

How to use the heart rate monitor free app to measure your heartbeat?

To use this heart rate monitor app, just put your finger on the phone's camera and stay still, the heart rate should be shown after several seconds.

What is a normal heart rate or heartbeat?

According to Mayo Clinic, the normal resting heartbeat rate for adults ranges from 60 to 100 beats per minute (BPM). However, keep in mind that many factors can influence the heart rate, including activity level, fitness level, body size, emotions, etc. Generally, a lower heartbeat at rest implies more efficient heart function and better cardiovascular fitness.

Consult your doctor if your resting heartbeat is consistently above 100 beats per minute or if you're not a trained athlete and your resting heartbeat is below 60 beats a minute.

What are heart rate training zones?

Heart rate training zones are calculated using maximum heart Rate (MaxHR). Within each training zone, subtle physiological effects take place to enhance your fitness. We have a similar definition to those used in Fitbit trackers:

- REST ZONE (up to 50% HRmax): This considers a resting zone.

- FAT BURN ZONE (50 to 70% of maximum): Recovery and warming-up exercises should be completed in this zone. It’s called the fat burn zone because a higher percentage of calories are burnt from fat.

- CARDIO ZONE (70% to 85% of HRmax): Most of the main exercises should be completed in this zone.

- PEAK ZONE (greater than 85% of HRmax): This zone is ideal for short intense sessions (high-intensity interval training HIIT) to improve performance and speed.

This heart rate monitor app calculates and automatically saves your heart rate training zones.


Unlock all features with in-app purchases:

- Enjoy a 7-day free trial
- Easily cancel your subscription from your Settings App.


WARNING

- Heart rate monitor app should NOT be used as a medical device.
- If you have a medical condition or are worried about your heart health please always consult your GP.
- By using this app you agree with the Terms of Use and Privacy Policy:

https://www.oxford-fitness.com/terms-of-use.html
https://www.oxford-fitness.com/privacy.html

🆕 What's New · v3.4

Improved performance and bug fixes!

Profile & Insights

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

Identification

App name
AccuRate Heart Rate Monitor
Developer
Oxford Fitness Ltd
Bundle ID
com.oxfordfitness.heartrate
App Store URL
Open in App Store
Category
Health & Fitness
Content rating
4+
Languages
EN

Company

Website
Not found
Tagline
Today
Description
Find apps and games for iPhone, iPad, Mac, and more on the App Store.
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
$28.8K/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
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
https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
https://apps.apple.com/us/iphone/story/id1895870717
📈Ratings growth2,145 ratings+214400% lifetimeShow 3-year history estimate ▾Mar 2022Apr 2025May 2026
Tracked (50 weeks) Pre-tracking estimate (37 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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