Comparison

Cardiograph Classic vs Outwalk

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

Head to head
About

Cardiograph Classic

Measure your heart rate using your device's camera. Save and track your results over time, manage multiple user profiles, and add notes or locations to your measurements. Export and print your data for easy sharing or record-keeping.

Highlights
  • Measure heart rate with device camera
  • Save and track historical measurements
  • Create individual user profiles
  • Add notes and locations to readings
  • Export and print measurement data
  • Clean and intuitive user interface
Features
Read full description

Cardiograph is an application which measures your heart rate. You can save your results for future reference, keep track of multiple people with individual profiles, add notes and locations, and even print out your measurements for sharing or safe keeping. Cardiograph uses your device's built-in camera to take pictures of your fingertip and calculate your heart's rhythm - the same approach used by professional medical equipment! "I know you have the disclaimer on the screen but I don't care, Cardiograph saved my life. Your app was key to understanding what was going on and help the doctors understand too." Bob Spadafora - ***** "Comparing heart rates with family over the holidays is fun." Txyak – **** "Wanna impress a friend with a cool app. This is the one to get." Mattyray – ***** "After having two heart valve replacements and a by-pass, I feel it is not only smart - but also necessary - to have such a reliable heart rate monitor with me everywhere I go." Dantv – ***** "I am an EMT and it helps me actually see what is going on. It is by no means definitive like a monitor but it is a great indicator of problems I would not see otherwise." Granniem – **** "I had a pulse oximeter on one hand, medical quality, and my iPhone app in the other and the app was dead-on accurate." Like it but hate it – ***** === See Cardiograph in action === http://macropinch.com/cardiograph http://youtu.be/isIjcCFYEho • Measure your heart rate It's never been easier to know what your heart rate is! Without any external hardware, just using the built-in camera of your smartphone or tablet, you can get accurate readings almost instantly. Knowing how fast your heart is beating can be very useful when exercising, if you're under stress, if you have a heart-related medical condition, or even just out of curiosity. • Track your results Every measurement you take is saved to your personal history, so you can keep track over time. In addition to the date and time of the measurement, you can also save the location at which it was taken (and see them on a map), and even add a quick note to effortlessly organize your history. • Multiple profiles Cardiograph is perfectly tailored to allow multiple people to use the app on a shared device. You can create profiles for each of your family members or friends, and each of them has their own individual measurement history. • Export & Print Each measurement can be exported in full detail to a portable format that you can later send via e-mail, upload on the web or even print right from the app itself (with an AirPrint™ compatible printer). • Clean and intuitive design Inspired by real-life medical equipment, Cardiograph is a pleasure to use. The streamlined and clutter-free design makes it seem instantly familiar, so you can focus on using the app instead of navigating through series of confusing screens. • Built-in user guide If you're having trouble with the app, or you want to make the most out of it, you can access the comprehensive help manual right from within the app itself. • Universal application with iCloud® sync Cardiograph is an universal application - it runs on the iPhone, the iPad, and the iPod touch. Install Cardiograph on multiple devices with iOS 5.0+, and all your profiles and measurements will be in sync! Manage your profiles and measurements on one device, and the changes are instantly reflected on all the others. Please note: If your device doesn't have a built-in camera flash, you need to take your measurements in a well lit environment (bright sunlight or close to a light source). Follow the latest news: http://www.facebook.com/macropinch http://twitter.com/macropinch

About

Outwalk

This app tracks your steps and distance, motivating you to build healthier habits. Compete with friends on live leaderboards, earn badges, and view detailed statistics. It integrates with Apple Health and offers background tracking, widgets, and Apple Watch support.

Highlights
  • Step and distance tracking
  • Live leaderboards
  • Nearly 100 unlockable badges
  • Detailed statistics and reports
  • Apple Health integration
  • Background activity tracking
  • Home and Lock Screen widgets
  • Apple Watch support
Features
Read full description

Outwalk — Step Tracker & Leaderboards *** Featured by Apple in "New Apps We Love" and "Great on iPhone X" *** Outwalk turns your everyday movement into motivation. Track your steps and distance, compete with friends on live leaderboards, and unlock nearly 100 badges as you build healthier habits — all without draining your battery. TRACK SMARTER • Count steps and measure distance walked, run, or jogged — daily, weekly, monthly, and yearly • Get detailed graphs, statistics, and personalized weekly reports at a glance • Integrates with Apple Health to pull data from all sources: built-in motion sensor, third-party apps, and dedicated hardware COMPETE AND CONNECT • Challenge friends on custom leaderboards and climb the Global & Regional Rankings • Chat with friends directly in the app or invite new ones to fuel your rivalry • Share achievements and leaderboard positions to social media or via iMessage BUILT FOR YOUR LIFESTYLE • Stays active in the background — no need to keep the app open • Glanceable Widgets on your Home Screen and Lock Screen • Full Apple Watch support with step and distance complications • Localized for all 50 App Store languages Restore your data seamlessly on a new device with Sign in with Apple or Google Follow us for news and updates facebook.com/multipinch x.com/multipinch

Screenshots

Cardiograph Classic4 screens
Outwalk4 screens

Verdict

The call

The clearest difference is price: Outwalk at Free against Cardiograph Classic's $0.99. Cardiograph Classic's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, ratings volume, update cadence and device support 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

Outwalk is free to download; Cardiograph Classic costs $0.99 up front. Outwalk sells 1 one-off in-app purchase. Cardiograph Classic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Cardiograph Classic against 4.7 for Outwalk. Both are backed by a comparable volume of ratings — 3.5K and 2.1K respectively. Written reviews are what separate them: 74% of Cardiograph Classic's written reviews are positive against 46% of Outwalk's.

UpkeepUpdate frequency

Cardiograph Classic ships an update every 2 months, Outwalk every 3 months. Both last shipped on September 23, 2026.

Scorecard6 real differences · 4 level
Cardiograph Classic versus Outwalk: the parameters behind the verdict, then further details
ParameterCardiograph ClassicOutwalk
Price$0.99Free — better
Rating4.7 (3.5K ratings)4.7 (2.1K ratings)
Positive reviews74.1% of reviews — better45.8% of reviews
Number of ratings3.5K — better2.1K
Update frequencyEvery 2 months — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS8.0 — better13.0
Further details — not scored
Size18 MB118 MB
Age rating4+4+
DeveloperMacroPinch Ltd.Miroslav Otsedarski

Customer experience

Cardiograph Classic

All ratings3,456 ratings
Positive94.1%
Neutral3.6%
Negative2.4%
Written reviews410 reviews
Positive74.1%
Neutral4.4%
Negative21.5%

Outwalk

All ratings2,116 ratings
Positive92.7%
Neutral3.6%
Negative3.7%
Written reviews59 reviews
Positive45.8%
Neutral15.3%
Negative39.0%

User reviews

Cardiograph Classic

From 3.5K App Store ratings

What we love

  • 👍 Accurate and reliable
  • 🚀 Easy to use
  • 💡 Useful for monitoring heart health
  • 👍 Convenient for checking pulse on the go
  • 👍 Helpful for doctors and medical professionals

Room to improve

  • 🐛 Inconsistent performance, sometimes fails to get a reading
  • 🐛 Struggles with irregular heart rhythms
  • 🐛 Requires specific finger placement and lighting conditions
  • 💰 Paid version has ads
  • 🐛 Crashes or stops working after iOS updates

Outwalk

From 2.1K App Store ratings

What we love

  • 🚀 Fun and interactive
  • 👍 Great app for walking/running
  • 👍 Motivating to compete with friends

Room to improve

  • 🐛 Inaccurate step/distance tracking
  • 🐛 Frequent crashes and connection issues
  • 🐛 Unable to sync with other fitness apps
  • 🔍 Issues with adding/connecting friends

Bugs and requests

Cardiograph Classic

Reported bugs

3 issues
  • Crashes on launch for some users
  • Inaccurate or unreliable heart rate readings
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Export data to PDF or other formats
  • Add more detailed heart health analytics
  • Improve support for irregular heart rhythms
  • Provide more educational information on heart health

Outwalk

Reported bugs

3 issues
  • Steps disappearing or not syncing correctly
  • Ads that cannot be closed
  • Blank screens and loading issues

Requested features

3 requests
  • Ability to link with other fitness apps
  • Custom distance/goal setting options
  • Better leaderboard and sharing features

In-app purchases

None

Cardiograph Classic

No in-app purchases

1 purchases

Outwalk

One-time1
  • Remove Ads$1.99

Questions

Is Cardiograph Classic free?
Cardiograph Classic costs $0.99, with no in-app purchases.
Is Outwalk free?
Outwalk is free to download, with in-app purchases available.
Which has better reviews, Cardiograph Classic or Outwalk?
Cardiograph Classic and Outwalk are both rated 4.7 out of 5 on the App Store, from 3.5K and 2.1K ratings respectively.
Do Cardiograph Classic or Outwalk have ads?
Outwalk shows ads; Cardiograph Classic does not.
Which is updated more often, Cardiograph Classic or Outwalk?
Cardiograph Classic ships an update every 2 months, and Outwalk every 3 months. Most recently, Cardiograph Classic was updated on September 23, 2026 and Outwalk on September 23, 2026.

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