MyZio vs Know Your CML
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyZio
Log your symptoms and track your ECG monitor's shipping status. Access helpful information and instructional videos to guide you through your monitoring experience.
- Log and edit symptoms
- Track monitor shipping status
- Register Zio ECG monitor
- Access Zio service information
- View instructional videos
- Create MyZio account
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MyZio® is the perfect companion app to the Zio® ECG monitor. Use the app to track your monitor’s shipping status*, enter your symptoms, and access helpful information.. Key Features: • Signup for a MyZio account anytime. • Track your monitor’s shipping status.* • Seamlessly add your Zio ECG monitor and start logging symptoms. • Enter your symptoms, then view and edit them as needed. • Access helpful information and instructional videos for using your Zio ECG monitor. • Content available in English and Spanish (adjust language settings in Profile screen) *Feature not available outside the U.S.
Know Your CML
This medical app helps patients and caregivers manage chronic myelogenous leukemia. It allows users to track side effects, compare test results, and access updated treatment guidelines and community news. Developed by patients for patients, it aims to support best practice sharing globally.
- Monitor side effects
- Compare test results
- Access treatment guidelines
- View community news
- Benchmarking data with other patients
- Global patient organization network
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Know Your CML is a self-management instrument empowering patients and caregivers living with chronic myelogenous leukemia to monitor side effects, compare test results with ones from published clinical trials, benchmarking data with other patients in anonymised way. The app includes updated treatment guidelines and community news from global events on CML. Know Your CML is created by CML Advocates Network, connecting 128 patient organisations in 93 countries on all continents. Its aim is to facilitate and support best practice sharing among patient advocates across the world. This app is created by the patients for the patients. Application is currently available in English, but will be translated to Spanish, French, Russian, Arabic, German languages in the near future. Know Your CML is free to use, no personal data will be collected and stored in the application.
Screenshots
Verdict
The clearest difference is ratings volume: MyZio at 68K against Know Your CML's 1. MyZio also leads on chart position (#35 vs unranked). Know Your CML's advantage is update cadence (monthly vs every 5 months) and rating (5.0 vs 4.8). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Know Your CML holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MyZio has 68K ratings behind it against 1, so its average is the more settled of the two.
MyZio ships an update every 5 months, Know Your CML monthly. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.
| Parameter | MyZio | Know Your CML |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (68K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 53.4% of reviews | — |
| Number of ratings | 68K — better | 1 |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #35 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 63 MB | 59 MB |
| Age rating | 17+ | 12+ |
| Developer | iRhythm Technologies, Inc | Leukemia Patient Advocates Foundation |
Customer experience
MyZio
Know Your CML
Bugs and requests
MyZio
Reported bugs
3 issues- App login and registration issues
- Inconsistent app behavior and UI
- Limitations in logging symptoms
Requested features
6 requests- More removable pads for extended wear
- Option to log accidental button presses
- Ability to edit logged entries
- Real-time heart rate monitoring
- Improved app design and functionality
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- Better customer support options
Know Your CML
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MyZio
No in-app purchases
Know Your CML
No in-app purchases
Questions
Is MyZio free?
Is Know Your CML free?
Which has better reviews, MyZio or Know Your CML?
Do MyZio or Know Your CML have ads?
Which is updated more often, MyZio or Know Your CML?
Other comparisons
