MATS vs Azume
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
MATS
This app simplifies training management for athletes by combining planning, analysis, and communication tools. It offers evidence-based diagnostics, personalized training plans, and a knowledge hub to enhance performance. Designed for ease of use, it integrates multiple functions into one platform.
- Integrated training calendar
- Scientific performance analysis
- Strength & Core workout library
- Remote diagnostic tools
- Professional training plans
- Athlete-coach chat
- Knowledge Hub for sports science
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MATS is your AI coach for running, cycling, and triathlon. It plans your training week by week, checks your training load every day, and rebuilds your plan when your daily life changes. Behind the AI coach are real elite coaches. Their training philosophy is built into every plan it creates for you. Do you train with your own coach? Then you can work together in MATS, with your calendar, chat, and all your data in one place. And if you simply want to record and analyze your training, youโll find everything you need in the same app. ### AI COACH - Tell it what changes: two extra hours on Sunday, a business trip, an illness. It checks your training load and adjusts your week accordingly. - Add your races. It plans your base, build, and peak phases around them, all the way through your taper. - Your readiness, based on HRV, resting heart rate, sleep, and your daily feedback, is factored into every recommendation. SMART TRAINER - Control your smart trainer directly from MATS - on your smartphone, tablet, or in your browser. Your intervals run at the planned power target without the need for a second app. You can even connect your Core sensor. STRENGTH & MOBILITY - Choose from a large exercise library with instructions and videos, or train with ready-made workouts. Your strength sessions are scheduled where they best fit into your endurance training week. CALENDAR & ANALYSIS - All your workouts in one calendar, synced with Garmin, Apple, COROS, Suunto, Zwift, and other platforms. You can also factor weather data and availability into your planning. - Connect MATS to your personal calendar. This lets you see training, work, and family commitments in one place and schedule your workouts around your actual week. - Track your threshold power, training intensity distribution, and training load with the MATS Score. - Determine your performance parameters conveniently from home with the diagnostic protocol. FOR ATHLETES WITH THEIR OWN COACH - Your coach plans directly in your calendar. You can communicate via chat, comment on workouts and events, and receive push notifications whenever something changes. KNOWLEDGE HUB - Articles on training science and MATS features, linked directly to the relevant areas of the app. Try MATS free for 14 days. EULA: https://mats.coach/en/eula/
Azume
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Azume is the app for the Azume One, a screenless sensor that attaches to the back of your watch and measures continuously, day and night. It tracks heart rate and resting heart rate, HRV, blood oxygen and stress around the clock, sleep with its full stage breakdown, plus steps, distance, calories and workouts, whether you log them yourself or Azume One detects them, including GPS routes for workouts that cover ground. Each morning the app turns all of that into three scores: Recovery, Sleep and Wellness. Open the app in the morning to know whether today is a day to push or a day to hold back. Open it in the evening and check how your day actually went. THREE SCORES EVERY MORNING RECOVERY SCORE Built from your overnight HRV, resting heart rate and sleep. Are you ready for a hard day, or should today be lighter? SLEEP SCORE How the night actually went, not just how long you were in bed. WELLNESS SCORE Recovery, sleep and stress in one number, so you can see the week taking shape. METRICS VISIBLE IN AZUME APP SLEEP - Deep, light and REM sleep, plus time awake - Your full night laid out hour by hour - Bedtime and wake time, detected automatically - Nightly score and long-term trends HEART - Continuous heart rate, day and night, with highs, lows and averages - Resting heart rate measured every morning while you sleep - Heart rate variability measured overnight - Blood oxygen (SpO2) measured through the night - Respiratory rate, measured on demand - VO2 max estimate, tracked over time STRESS - Continuous stress reading derived from your heart signals - Banded low, moderate and high across your day - See when the day got demanding and when it didn't ACTIVITY - Steps and distance, broken down across the day - Active calories from movement and resting calories from your body, shown separately and together - Add workouts alongside the rest of your day - Daily step and calorie goals, with a nudge when you reach them - Streaks to keep you going WEIGHT - Log your weight and follow the trend over time TRENDS - Every metric has its own view: day, week, month and year - Any single reading always sits in the context of everything before it WORKS WITH APPLE HEALTH Turn it on and your measurements appear in the Health app alongside everything else you track. One-way and reversible. Azume writes, never reads, and switching it off removes Azume's data from Apple Health again. PRIVATE BY DESIGN Your health data is the most personal data you have. - No advertising SDKs, no analytics trackers, nothing sold - Stored in the EU under GDPR - Delete your account and all of it from inside the app, no email, no wait REQUIREMENTS Azume requires an Azume One, which attaches to the back of your watch or can be worn on its own with the FitBand. Syncs over Bluetooth. Azume is not a medical device. It is intended for general wellness and fitness purposes only.
Screenshots
Verdict
The clearest difference is in-app purchases: Azume at none against MATS's 13. Azume also leads on update cadence (every 3 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. MATS sells 13 in-app purchases, starting at $17.00 per month. Azume asks for nothing beyond the download.
MATS ships an update every 9 days, Azume every 3 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | MATS | Azume |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 84.0% of reviews | โ |
| Update frequency | Every 9 days | Every 3 days โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Free with in-app purchases | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 15.6 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 106 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | MATS GmbH | WatchMePay GmbH |
In-app purchases
MATS
- Premium monthly subscription$17.001 Month
- AI Coach - Seipp (Month)$39.001 Month
- AI Coach - Tilbury-Davis (Month)$39.001 Month
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- AI Coach - Roesler (Month)$39.001 Month
- AI Coach - Schoemburg-Heuck (Month)$39.001 Month
- Basic yearly subscription$99.991 Year
- Premium yearly subscription$129.991 Year
- AI Coach - Eriksson (Year)$350.001 Year
- AI Coach - Seipp (Year)$350.001 Year
- AI Coach - Tilbury-Davis (Year)$350.001 Year
- AI Coach - Roesler (Year)$350.001 Year
- AI Coach - Schoemburg-Heuck (Year)$350.001 Year
- Diagnostic$79.00
Azume
No in-app purchases









