Cardio Chart vs CardioSimple
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.
CardioSimple
This app offers AI-driven cardiac rehabilitation exercises and coaching at home. It personalizes your experience through surveys, tracks vitals and medications, and provides AI-graded nutrition logging. Guided workouts focus on heart rate targets to support your recovery.
- AI-driven exercise coaching
- Personalized rehab plans
- Nutrition logging and AI-grading
- Medication tracking
- Vitals monitoring
- Heart rate target guided workouts
- Progress charts
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CardioSimple is a full comprehensive app for cardiac rehab. Using AI-driven insights and coaching during exercise, CardioSimple brings AI to the at-home cardiac rehab experience, allowing users to be supervised during exercise. Users fill out a survey using their patient data to customize their experience to be adapted for each unique user. Users can log and AI-grade their nutrition, log their medications, track their vitals, help themselves cease smoking, do AI-supervised exercise workouts guided by heart rate target ranges according to the American Heart Association, and be encouraged using the progress charts. Works with Apple Watch: see live heart rate and your target zone on your wrist during supervised workouts, take on-demand heart-rate measurements, and sync results back to your phone automatically. NOT FOR MEDICAL USE. FOR INFORMATIONAL PURPOSES ONLY --- SEE IN-APP DISCLAIMER.
Screenshots
Verdict
The clearest difference is update cadence: CardioSimple at every 9 days against Cardio Chart's every 25 months. CardioSimple also leads on device support (4 vs 1) and ratings volume (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 CardioSimple. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Cardio Chart ships an update every 25 months, CardioSimple every 9 days. The most recent releases landed on July 4, 2026 and September 5, 2026 respectively.
| Parameter | Cardio Chart | CardioSimple |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 25 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 71 MB |
| Age rating | 12+ | 17+ |
| Developer | Clever Armadillo LLC | Seamless Care LLC |
Customer experience
Cardio Chart
CardioSimple
In-app purchases
Cardio Chart
No in-app purchases
CardioSimple
No in-app purchases





