For people who like to spend time outside. Outside of their comfort zone.
The Outsiders comes with hand-picked metrics to help you improve performance in an informed way. Made for self-coached athletes driven by data and planning.
This is not another "do more" fitness app. The Outsiders balances intensity with recovery. If you train with intent, want clear feedback, and see training as your main side project - this may be the tool for you.
*Created by the team behind Apple Watch App of the Year & Apple Design Award Winner*
For cyclists, runners, swimmers, and performance-driven athletes who know what they need.
▶ TODAY – KNOW YOUR READINESS
Start each day with a Training Readiness score based on the ratio of acute to chronic training load, combined with body metrics and sleep quality. This tracks the balance between recent training effort and what your body can handle, accounting for short-term trends.
This helps you:
• Select the right effort & intensity for the day
• Build steadily toward goals
• Avoid injury and overtraining
All factors affecting your Readiness appear in interactive charts (Sleep, Training Load Ratio - TLR, Training Form, Body Metrics).
Body metric history shows how training impacts recovery and adaptation. View data across 7 days, 4 weeks, or 6 months. Each view shows avg, max, and min values.
View sleep quality, duration, stages, and consistency over 14 days. Longer periods are coming.
▶ PROGRESS – TRACK YOUR PERFORMANCE
See how your training load is stacking up during the training cycles.
• Balance hard training periods and recovery weeks
• Training Goals: Set short- and long-term targets and track progress over time
• Training Focus: choose the right type of guidance according to your goals - Polarized, Pyramid, Threshold
• Track your Endurance Fitness (CTL), Cardio Fitness (VO₂ max), and cycling FTP with clear trends.
Coming later:
• Running FT Pace
• Cycling Power Curve
▶ WORKOUTS – COMPLETE INSIGHT
All your HealthKit workout history in one place.
Garmin Connect supported. New workouts import automatically.
Weekly, monthly, and yearly trends with detailed charts, including training load, duration, energy, distance, elevation, and number of sessions.
Detailed in-workout analysis with:
• Key stats
• Zones (aerobic & anaerobic, traditional 5 HR zones, and cycling power zones)
• Breakdown (intervals, segments, and distance splits)
• Charts
• Advanced metrics: Efficiency Factor, Aerobic Decoupling, Relative Intensity, and Variability Index.
▶ APPLE WATCH APP
Key stats always a glance away: Training Readiness, TLR, Sleeping Heart Rate, HRV, Wrist Temperature, Respiratory Rate, Blood Oxygen, and recent Sleep.
Watch app complications:
• Training Readiness
• Training Load Ratio
▶ WIDGETS
Check Training Readiness, Body Metrics, Training Load Ratio, and Endurance Fitness on your home screen.
▶ LOCALISATION
Available in 10 languages: English, German, Spanish, French, Italian, Portuguese, Chinese (Simpl. & Trad.), Japanese, Korean.
▶ PRIVACY
The app only reads HealthKit data on your device and never stores it elsewhere.
▶ DISCLAIMER
The Outsiders uses your HealthKit data and works best with >90 days of training history. If you’re new to Apple Watch or workout logging, it will need time to learn your patterns. Limited data means limited insight.
Crafted with attention to detail, by real, air-breathing humans.
Terms of Service: https://gentlerstories.com/theoutsiders/terms-of-use
Privacy Policy: https://gentlerstories.com/theoutsiders/privacypolicy
For serious athletes who thrive outside their comfort zone, The Outsiders delivers personalized performance insights to help anyone go further without overdoing it.
Insights to change my training
JKP in WA
I've used some other Apps -- often it seems like they add metrics just because they can be calculated. This is more curated.Using it I realized a mental mistake. I'm interested in VO2max as a measure of endurance. It takes time to go up so I'd track it with workouts. But this made it clear that I should really track my load a month before -- it's really my previous work that tracks with VO2max. The focus on training load and the ratio with which it's changing -- very helpful with dog walks. I track those differently (trying not tool rush my doggie too much.) still I can compare it to other types of workouts.
This could be a great app!
Writermind
This is one of the most visually appealing fitness apps I’ve used! The interface is clean, modern, colorful, and does an excellent job presenting workout data. I also appreciate how much information is available—from training load and endurance fitness to heart rate zones and workout trends.My biggest criticism is that the app often assumes users already understand advanced exercise physiology.For example, labels like “Low Aerobic Shortage,” “High Aerobic,” and “Anaerobic” are presented without enough explanation of how the app defines those terms. During one of my indoor walking workouts, the app classified 67% of the session as anaerobic, which seemed surprising for a steady 50-minute walk. Whether the app is correct or not isn’t really the issue—the issue is that it never explains why it reached that conclusion.I would love to see each metric include a brief explanation answering three simple questions:• What does this metric measure?• Why did I receive this result?• What can I do to improve it?Even something as simple as a tappable “Learn More” button beneath each chart would dramatically improve the experience. The app already excels at collecting and displaying data; now it needs to excel at helping users understand what that data means.Overall, this is one of the most promising fitness apps I’ve tried. With clearer explanations and more educational context, I think it could become one of the best fitness platforms available.
Good so far, but needs…
Outlook Desktop User
I like the app so far. It fits a niche I was contemplating getting a more expensive fitness tracker and additional subscription for. With this, I think I can stick with my Apple Watch and get 90% of the same benefits.One recommendation: report on periods of time in specific training zones. Perhaps integrate with the Gentler app for this. But if I want to target Zone 2 training, or work on VO2 max, it would be nice to have that data integrated to show the percentage of my training efforts that have been dedicated to those zones, and then additional recommendations to increase endurance, VO2, etc. Maybe have the ability to adjust or filter in settings so you can set your own targets if you don’t like the app’s pre-programmed recommendations?
Developer Response
Hi! Thanks for taking the time to share your experience on The Outsiders, and thanks for all the suggestions. Some of them are already being discussed and considered for adding, and the others we will keep in mind for future updates. Best, Vid
More data, deeper analysis, and finally a Share button. This update adds new tools to help you spot where you have improved and where there is still room to push the pace or add some watts.
▶ BREAKDOWN. The old Splits section has been renamed and expanded. Breakdown now includes three types of data:
• Splits are added automatically per distance.
• Intervals appear if you follow a structured workout. In the Apple Watch Workouts app you can create a custom workout with warmup, work, recovery, and cooldown periods.
• Segments are marked manually using a double-tap on Apple Watch or the Action button on Apple Watch Ultra. Next time you want to break a segment on your run or ride, mark the start and end, then analyse it in The Outsiders.
▶ SHARE. It took a while, but here it is. You can now share your oh-so-precious workout summary.
▶ RELATIVE INTENSITY FOR RUNNING. Now available for running workouts, based on your lactate threshold heart rate.
▶ SMOOTHER WORKOUTS TAB. The glitching on the Workouts tab is gone. Thank you for putting up with it. No more, now it's as smooth as silk.
▶ TEMPERATURE FOR NON-APPLE WATCH USERS. If you use a non-Apple Watch device for tracking temperature, this metric should now also appear in The Outsiders, as long as your tracker saves data to Apple Health.
▶ REFRESHED UI/UX FOR ADDING A PERSONAL GOAL. Adding training goals has a nicer and smoother interface now.
If you like the update, especially the Breakdown and Share features, tag us on Instagram at @theoutsiders.app or on X at @theoutsidersapp
Enjoy the outside!
Version 1.7.8
The developer, Gentler Stories LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
VoiceOver
Larger Text
Dark Interface
Sufficient Contrast
Reduced Motion
Information
Seller
Gentler Stories d.o.o.
Size
172.1 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
Apple Watch Requires watchOS 26.0 or later.
Languages
English and 9 more
English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese