Cardio Chart vs CadioWatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cardio Chart
Visualize your heart rate during workouts with detailed graphs. Track maximum and average heart rates to understand exercise impact. Requires heart rate data recorded to the Health app.
- Heart rate workout graphs
- Maximum heart rate display
- Average heart rate display
- Health app integration
- Workout data visualization
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Cardio Chart lets you view a graph of your heart rate from any workout recorded on your device. See any peaks in your heart rate and get a sense of how your exercise is affecting your heart. Cardio Chart also displays your maximum and average heart rates for a workout. Graphs are only shown for workouts that include heart rate data such as those recorded with an Apple Watch or other pulse monitoring accessory. Note: • In order to display heart rate charts, you must have a device capable of recording heart rate data to the Health app (like an Apple Watch or other accessory). • Cardio Chart integrates with the Health app on your iPhone to retrieve the data it displays. It can display your Workout and Heart Rate information.
CadioWatch
Monitor your heart rate and blood oxygen levels with this companion app for Apple Watch. Easily share your health data charts with doctors, trainers, or family. View your historical health metrics with an intuitive interface.
- Heart rate monitoring
- Oxygen saturation tracking
- Data sharing via QR code
- Historical health data viewing
- Intuitive app design
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Introducing CardioWatch for Apple Watch - the ultimate heart health companion! With our advanced heart rate and oxygen saturation monitoring technology, you can now track your beats per minute and oxygen level, and easily share your data with others. Simply scan the QR code generated by the app to share your heart rate and oxygen saturation chart with your doctor, personal trainer, or loved ones. Our intuitive app design also makes it easy to view your heart rate and oxygen saturation history. Download CardioWatch today and take control of your heart and lung health!
Screenshots
Verdict
The clearest difference is update cadence: CadioWatch at every 5 days against Cardio Chart's every 25 months. CadioWatch also leads on ratings volume (4 vs 1) and device support (3 vs 1). On price, rating, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Cardio Chart against 5.0 for CadioWatch. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
Cardio Chart ships an update every 25 months, CadioWatch every 5 days. The most recent releases landed on July 4, 2026 and June 8, 2026 respectively.
| Parameter | Cardio Chart | CadioWatch |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 25 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 8 MB |
| Age rating | 12+ | 4+ |
| Developer | Clever Armadillo LLC | OAXON INC. |
Customer experience
Cardio Chart
CadioWatch
In-app purchases
Cardio Chart
No in-app purchases
CadioWatch
No in-app purchases
Questions
Is Cardio Chart free?
Is CadioWatch free?
Which has better reviews, Cardio Chart or CadioWatch?
Do Cardio Chart or CadioWatch have ads?
Which is updated more often, Cardio Chart or CadioWatch?
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