Comparison

Heart Graph vs ECG Logger for Polar H10

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Heart Graph

Track your heart rate in real-time and analyze trends over time. Understand your body's response to training and general health with detailed graphs and statistics. Import data from Apple Health for a comprehensive view of your fitness journey.

Highlights
  • Real-time heart rate graphing
  • Apple Health integration
  • Session comparison and statistics
  • Heart rate zone analysis
  • Planned workout design
  • Heart rate alarms
  • Background data recording
Features
Read full description

Knowing your current heart rate is useful, but seeing in real time how it varies over a longer period gives you much more information, especially when trying to understand how your body is responding to a training plan. Heart Graph can be used for all types of aerobic exercise including running, cycling, rowing or gym work, and of course you can also use it to study your normal heart rate for general health reasons. Heart Graph allows you to record new data and see your heart rate graph in real time, as well as importing existing data from Apple Health. Data from previous sessions can then be compared to give a deeper understanding of how your body is changing over time, for example by directly comparing the graphs for equivalent sessions, viewing statistics such as max, mean and resting heart rate across sessions, or seeing the proportion of time spent in different heart rate zones aggregated over weeks or months. (Note some features require a one-off In-App Purchase, as described below.) FREE features of Heart Graph include: * Display a real-time graph of heart rate against time on your iPhone or iPad * Support for both Bluetooth sensors and Apple Watch * No ads * Review your sessions offline to spot trends in your data * Integration with Apple Health: import existing workout data and store new workouts * Maximise the screen area for graphs on iPhone using landscape orientation * Group related sessions by adding your own notes, then searching for sessions matching those notes * Record a standard Reference Set at the start of each session to help determine how your body is really doing; if your heart rate is elevated, you may want to take it easy * Record data in the background if you want to use other heart rate apps (Bluetooth sensors) * Calculate calories burned, and set a calorie target for each session Beyond the basics, a single, one-off In-App Purchase will enable the Premium Features, giving you access to more in-depth analysis tools and the ability to design your training sessions in the app. These Planned Workouts split a session into small pieces, for example sets at the the gym, or intervals on a bike. When you’re exercising, Heart Graph will keep track of where you are in the session and what’s coming up next, alerting you when it’s time to stop or move on. The trigger for moving from one set to the next can be a simple time gap (“wait 30 seconds”), or be based on heart rate to allow a specific amount of recovery before continuing (“wait until heart rate is below 120bpm”). The outcome is a structured plan that adapts to how your body is responding each time you do that session. Premium Features include: * View and analyse the time spent in each of five configurable heart rate zones * Add annotations to the graph during recording to help identify key events * Heart rate alarms when your heart rate changes zone or goes above or below configurable thresholds * Import data from the Health app for custom time periods of up to 24 hours * Directly compare graphs for equivalent sessions * Compare statistics (such as max, mean and resting heart rate) across sessions * Record a session to explicitly measure resting heart rate while you relax * Audio rep counting so you never lose count - make a noise every time you complete a rep and the app keeps track of how many you’ve done * Import and export heart rate data from other apps or your computer using Garmin TCX format files * Import Garmin GPX format files * Export data to CSV files for further analysis in software such as Excel (email, Dropbox, etc) Heart Graph requires an external sensor to record heart rate, such as: * A bluetooth (BTLE) sensor such as the Wahoo Tickr / Polar H10 chest straps, or the Mio Alpha watch * An Apple Watch * An ANT+ sensor connected using the Wahoo Key DISCLAIMER: Heart Graph is not a medical device, and you must always seek a doctor’s advice before making any medical decisions.

About

ECG Logger for Polar H10

Record and analyze electrocardiogram (ECG) data from your Polar H10 sensor. View live and historical ECG, heart rate, and R-R intervals with interactive graphing. Export recordings for further analysis.

Highlights
  • Live ECG, heart rate, and R-R interval view
  • Background recording
  • Interactive data exploration (zoom/pan)
  • Marking important moments
  • Automatic splitting of long recordings
  • PDF and CSV export
  • Apple Files app integration
Features
Read full description

Electrocardiogram for Polar H10 heart rate sensor. ECG, heart rate and R-R intervals. Live view and recording (also in background). Recordings can be opened later on. - View your current and earlier ECG, heart rate and R-R intervals in the same graph or individually - Explore your data by zooming and panning gestures - Record your data while also having a live preview - Add a marking to find the important moments later on - Lengthy recordings are automatically split into 1h files that enables very long recordings. - Export the recordings in PDF format - View your earlier recordings in the app - Delete, share, etc. your recordings in Apple's Files app - Recordings are in CSV format and can be opened in other applications too, for example in Excel - Interface in English and in Finnish

Screenshots

Heart Graph4 screens
ECG Logger for Polar H104 screens

Verdict

The call

The clearest difference is rating: Heart Graph at 4.5 against ECG Logger for Polar H10's 4.2. Heart Graph also leads on update cadence (every 2 weeks vs every 2 months) and review sentiment (86% vs 67%). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Heart Graph sells 2 one-off in-app purchases and ECG Logger for Polar H10 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Heart Graph holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Heart Graph has 1.2K ratings behind it against 76, so its average is the more settled of the two. Written reviews point the same way: 86% of Heart Graph's written reviews are positive against 67% of ECG Logger for Polar H10's.

UpkeepUpdate frequency

Heart Graph ships an update every 2 weeks, ECG Logger for Polar H10 every 2 months. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 6 level
Heart Graph versus ECG Logger for Polar H10: the parameters behind the verdict, then further details
ParameterHeart GraphECG Logger for Polar H10
PriceFreeFree
Rating4.5 (1.2K ratings) — better4.2 (76 ratings)
Positive reviews86.4% of reviews — better66.7% of reviews
Number of ratings1.2K — better76
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size33 MB15 MB
Age rating4+4+
DeveloperSmoky Cat Software Ltd.Matti Mononen

Customer experience

Heart Graph

All ratings1,199 ratings
Positive88.3%
Neutral2.8%
Negative8.9%
Written reviews558 reviews
Positive86.4%
Neutral3.8%
Negative9.9%

ECG Logger for Polar H10

All ratings76 ratings
Positive77.6%
Neutral5.3%
Negative17.1%
Written reviews18 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

Heart Graph

Reported bugs

2 issues
  • Workouts not always syncing correctly
  • App crashes or freezes on some devices

Requested features

4 requests
  • Add minimum heart rate to metrics
  • Integrate with more fitness apps and devices
  • Improve customization options for workout labels
  • Display heart rate on the workout selection screen

ECG Logger for Polar H10

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Heart Graph

One-time2
  • Support Ad-Free Software$0.99
  • Premium Features$2.99
2 purchases

ECG Logger for Polar H10

One-time2
  • PDF exporting$4.99
  • ECG recording$6.99

Questions

Is Heart Graph free?
Heart Graph is free to download, with in-app purchases available.
Is ECG Logger for Polar H10 free?
ECG Logger for Polar H10 is free to download, with in-app purchases available.
Which has better reviews, Heart Graph or ECG Logger for Polar H10?
Heart Graph is rated higher. Heart Graph averages 4.5 out of 5 from 1.2K ratings, while ECG Logger for Polar H10 averages 4.2 from 76 ratings.
Do Heart Graph or ECG Logger for Polar H10 have ads?
Neither Heart Graph nor ECG Logger for Polar H10 shows ads.
Which is updated more often, Heart Graph or ECG Logger for Polar H10?
Heart Graph ships an update every 2 weeks, and ECG Logger for Polar H10 every 2 months. Most recently, Heart Graph was updated on September 23, 2026 and ECG Logger for Polar H10 on September 17, 2026.

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