VO2 Max Tracker - Zephyrus1.5.0 - App Store
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Publisher Description
Use Zephyrus to test your cardio fitness (VO₂ max) on a treadmill, and track your improvement.
You can also use Zephyrus to do HIIT workouts. The app comes with a selection of workouts, and lets you create your own workouts. Zephyrus tells you when the target zone changes.
To get your heart rate in the app, you can use Apple Watch or heart rate monitors with Bluetooth. Garmin watches with Virtual Run are supported.
Cardio fitness is measured with a modified Bruce protocol test you can perform on most treadmills. The test consists of stages with increasing intensity and ends when you reach 85% of maximum heart rate.
You can do HIIT workouts on Apple Watch, so you don't have to bring your phone.
Your past workouts are saved to your workout history, where you can see the heart rate graph and calories burned.
Your data is stored in iCloud, which makes it accessible across your Apple devices.
Always consult with a healthcare provider before starting any new exercise program. Exercise can carry risks, especially for people who have certain medical conditions or who have not been physically active in a long time. It's important to understand that using this app does not replace a doctor's advice or treatment.
If you would like to report an issue or request a feature for the app, feel free to contact the App Support email.
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Version History Improvements and bug fixes 1.5.0 Sep 29 Improvements and bug fixes 1.4.9 Jul 6 Improvements and bug fixes 1.4.8 Jul 1 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023
About VO2 Max Tracker - Zephyrus
The company that develops VO2 Max Tracker - Zephyrus is Havard Tryman. The latest version released by its developer is 1.5.0.
To install VO2 Max Tracker - Zephyrus on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-13 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the VO2 Max Tracker - Zephyrus as malware if the download link is broken.
How to install VO2 Max Tracker - Zephyrus on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the VO2 Max Tracker - Zephyrus is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After VO2 Max Tracker - Zephyrus is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.5.0
posted on 2026-10-13
Version History Improvements and bug fixes 1.5.0 Sep 29 Improvements and bug fixes 1.4.9 Jul 6 Improvements and bug fixes 1.4.8 Jul 1 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023
version 1.5.0
posted on 2026-10-06
Version History Improvements and bug fixes 1.5.0 6d ago Improvements and bug fixes 1.4.9 Jul 6 Improvements and bug fixes 1.4.8 Jul 1 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023
version 1.5.0
posted on 2026-10-02
Version History Improvements and bug fixes 1.5.0 2d ago Improvements and bug fixes 1.4.9 Jul 6 Improvements and bug fixes 1.4.8 Jul 1 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023
version 1.4.9
posted on 2026-09-25
Version History Improvements and bug fixes 1.4.9 Jul 6 Improvements and bug fixes 1.4.8 Jul 1 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023 Visual and usability improvements 1.2.4 08/27/2023
version 1.4.9
posted on 2026-07-09
Version History Improvements and bug fixes 1.4.9 2d ago Improvements and bug fixes 1.4.8 Jul 1 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023 Visual and usability improvements 1.2.4 08/27/2023
version 1.4.7
posted on 2026-06-30
Version History This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.7 Apr 5 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.6 Feb 28 This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes 1.4.5 12/25/2025 This version of Cardio Tracker: Zephyrus includes improvements and bug fixes 1.4.4 09/07/2025 Improvements and bug fixes 1.4.3 08/22/2025 Improvements and bug fixes 1.4.2 08/17/2025 Visual and usability improvements 1.4.1 06/08/2025 Visual and usability improvements. 1.4.0 05/04/2025 Visual and usability improvements 1.3.9 04/28/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.8 04/22/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.7 04/10/2025 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.6 11/27/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.5 11/24/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.4 11/21/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.3 11/17/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.2 11/12/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.1 11/11/2024 HIIT Coach now lets you measure your cardio fitness. If you have access to a treadmill, you can do a modified Bruce protocol test to measure your VO₂ max. 1.3.0 11/11/2024 Visual and usability improvements 1.2.8 01/08/2024 Visual and usability improvements 1.2.7 11/06/2023 Visual and usability improvements 1.2.6 09/17/2023 Visual and usability improvements 1.2.5 08/31/2023 Visual and usability improvements 1.2.4 08/27/2023 Visual and usability improvements 1.2.3 08/23/2023 Visual and usability improvements 1.2.2 08/22/2023
version 1.4.6
posted on 2026-02-28
This version of VO2 Max Tracker - Zephyrus includes improvements and bug fixes
version 1.4.4
posted on 2025-09-07
Sep 7, 2025
Version 1.4.4
This version of Cardio Tracker: Zephyrus includes improvements and bug fixes
version 1.4.2
posted on 2025-08-17
Aug 17, 2025
Version 1.4.2
Improvements and bug fixes
version 1.4.0
posted on 2025-05-04
May 4, 2025
Version 1.4.0
Visual and usability improvements.
Disclaimer
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