DailyTSS vs VO2 Max Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DailyTSS
This app helps athletes understand their training load using advanced metrics like ATL, CTL, and TSB. It integrates with Strava and Apple Health to provide a comprehensive view of fitness, fatigue, and recovery, enabling smarter training for better performance.
- Training load analysis
- ATL, CTL, TSB metrics
- Strava integration
- Apple Health integration
- Fitness dashboard
- Fatigue tracking
- Recovery insights
Read full descriptionHide full description
DailyTSS — Train Smarter with Fitness, Fatigue & Form DailyTSS helps you understand your training load using the same metrics elite coaches use: ATL, CTL and TSB. Connect your Strava activities and Apple Health data to see your full picture of fitness, fatigue and recovery in one powerful dashboard. Whether you are a triathlete, cyclist, runner, swimmer, or simply a data-driven athlete, DailyTSS gives you clear insights to train smarter and perform better. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
VO2 Max Tracker
Measure your cardio fitness (VO₂ max) using a treadmill test and track your progress. Create or select from pre-made HIIT workouts, with real-time guidance on target zones. Integrates with Apple Watch and Bluetooth heart rate monitors.
- VO₂ max testing on treadmills
- HIIT workout creation and selection
- Real-time target zone guidance
- Apple Watch and heart rate monitor integration
- Workout history with heart rate graphs
- iCloud data synchronization
Read full descriptionHide full 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/
Screenshots
Verdict
The clearest difference is rating: DailyTSS at 5.0 against VO2 Max Tracker's 4.0. DailyTSS also leads on ratings volume (3 vs 1) and iOS requirement (16.6 vs 18.6). VO2 Max Tracker's advantage is update cadence (every 2 weeks vs monthly). 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. DailyTSS sells 2 in-app purchases, starting at $3.99 per month and VO2 Max Tracker sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
DailyTSS holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
DailyTSS ships an update monthly, VO2 Max Tracker every 2 weeks. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | DailyTSS | VO2 Max Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 69 MB | 17 MB |
| Age rating | +17 | 4+ |
| Developer | Carlos Pena | Havard Tryman |
Customer experience
DailyTSS
VO2 Max Tracker
In-app purchases
DailyTSS
- Monthly Subscription$3.991 Month
- Yearly Subscription$29.991 Year
VO2 Max Tracker
- Pro (Weekly)7 Days trial$4.997 Days
- Pro (Monthly)3 Days trial$7.991 Month
- Pro3 Days trial$8.997 Days
Show 3 moreShow fewer
- Pro$24.991 Year
- Pro (Yearly)3 Days trial$24.991 Year
- Pro (Yearly)$59.991 Year









