FJELIA
01 / REAL APP WALKTHROUGH
Build a strength session
Edit exercises and configure sets, reps, load, rest and effort for each set.
Training and health in one place.
Know your body.
Train smarter.
Plan around your races. Understand your recovery. Ask your AI coach.
iPhone beta · AI is optional · How to install
Scan with your iPhone- No Fjelia account
- No ads or trackers
- Open source
Set priorities across your races.
Data from your devices, in one view.
- Apple Health
- Garmin
- Polar
- Suunto
- COROS
- Renpho
- Hilo
Make every training day count.
Your goals, your recovery and your progress, connected.
Training plan
Several race goals. One training plan.
A marathon, a cycling event, a trail race. Give each a priority and build a season around your history and available time.
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Set your priorities
A, B and C goals give each race its place in the season.
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Fit the week you have
Your sports, weekly hours and rest days shape the plan.
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Change a session when life changes
Move a workout or mark it skipped. Your choices stay in the plan.
Week view
Your planned week, with running, cycling, strength, rest days and multiple sessions on the same day.
Month view
A month of training, with sport colours and clear planned and completed markers.
Race goals
Your races with priorities, distances, elevation, dates, target times and countdowns.
Real app screenshots. Select a screen to enlarge.
A look inside the app
See how Fjelia works
Plan strength sessions, log each set in Gym mode, and prepare nutrition for the workout ahead.
02 / REAL APP WALKTHROUGH
Log sets as you train
Record reps and load, mark a set complete, and use the built-in rest timer.
03 / REAL APP WALKTHROUGH
Plan and review workout fuel
Set carb, fluid and sodium targets, then log what you actually took in.
Strength metrics and progression
For linked sessions, compare planned and completed sets. Strength details show training volume and estimate 1RM only for eligible loaded sets (1–10 reps).
Training-load and heart-rate/zone views use recorded activity data; they do not infer cardiovascular load from lifting volume. Review load-increase suggestions after two comparable qualifying sessions.
Swipe to explore the other walkthroughs.
Edited screen recordings from the app. Videos play silently and loop automatically while visible. Available features depend on your connected devices.
Explore six more app screens
Your day at a glance
Sleep, energy, training load and your health monitor.
Your sleep in detail
Sleep performance, time asleep and your sleep stages.
Compare your HRV
Compare your overnight HRV with your longer-term trends.
Analyse your workouts
Explore heart rate zones, speed and elevation together.
Your workout summary
Distance, time, heart rate and training load in one view.
Follow your health trends
Review blood pressure over the day, week and month.
Screenshots show the developer’s own data from a beta version. Available features and measurements depend on your connected devices. Select a screenshot to enlarge it.
Bring your device data together
Connect the services you already use. Fjelia puts their data on one timeline and stores it on your device.
- Apple Health
- Garmin Connect
- Polar
- Suunto
- COROS
- Renpho
- Aktiia
- Hilo
Your data stays yours
Health data is personal. Your Fjelia database stays on your phone. You choose the services you connect.
- No Fjelia account
- No ads or trackers
- Open source
On compatible devices, the AI coach runs on-device with Apple Intelligence. A cloud AI is only used if you choose one, add your own key and agree to each transfer.
Names are trademarks of their respective owners. Fjelia is an independent project and is not affiliated with or endorsed by any of them.
Workout sync: what each connection supports
Garmin Connect
Send supported planned sessions, including structured strength exercises, sets, reps and loads; watch recordings return to Fjelia and matching Gym logs are reconciled when recognized. Rep ranges, tempo and effort remain in Fjelia.
Polar Flow
Import activities and push supported planned endurance workouts. Strength sharing provides an exercise list to enter in Polar; set details are not sent as a structured workout.
COROS
Connected accounts can receive supported planned endurance workouts and return activities. Strength sharing provides an exercise list to enter in COROS.
Workout details shown on the watch depend on provider and device support. Your planned strength session remains saved in Fjelia.
Built for your sport
- Running
- Trail running
- Cycling
- Swimming
- Triathlon
- Inline skating
- Strength training
More activities Hiking, rowing, Nordic skiing and yoga also count towards your load and activity history.
Weather for your training
Plan your outdoor training
Compare forecasts and check wind, UV and rain radar before your next outdoor session.
Choose when to train
Compare hourly temperature and rain forecasts from several weather services.
Plan ahead
Check the 14-day outlook for your upcoming sessions.
See where it’s raining
Rain radar, wind, cloud cover and sunrise times in one view.
Real app screenshots. Forecasts depend on the weather services enabled in the app. Radar imagery by RainViewer; map data © OpenStreetMap contributors.
Beta highlights · October 2026
Latest in Fjelia
Getting started
Get started in three steps
Fjelia is in public beta. Try it in your daily routine and help improve future releases.
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Install TestFlight
Get Apple's free TestFlight app on your iPhone. It lets you install and update beta apps.
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Join the Fjelia beta
Open the beta invitation on your iPhone, accept it and install Fjelia through TestFlight.
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Connect your data
Complete setup and choose Apple Health or a supported service. Allow the first sync time to bring in your history.
The app
iPhone · TestFlight beta
Open the invitation to check the current iOS requirements.
On-device AI · optional
Apple Intelligence · iOS 26+
Needs a compatible iPhone, Apple Intelligence enabled and a supported language.
Training, health data and charts also work without AI. Optional cloud coaching uses your own API key.
Join the free iOS beta
Still in development. Your feedback helps us improve Fjelia.
Good to know
Before you start
Answers to common questions about Fjelia.
Is Fjelia free?
The public beta is free. The source code is available under the GPL. If you use an optional cloud AI service, that provider may charge for requests made with your API key.
Which iPhone do I need?
Open the TestFlight invitation to check whether the current version supports your iPhone. On-device AI coaching also requires an Apple Intelligence-compatible device with iOS 26 or later. Apple Intelligence must be enabled and set to a supported language.
Do I need a particular watch?
No. You can connect Apple Health or supported services including Garmin, Polar, Suunto and COROS. Available metrics depend on what each device measures and each service shares. Some connections may be unavailable in a particular beta build.
Can I use Fjelia without Apple Intelligence?
Yes. You can view your synced health data, activities and training features without on-device AI. Optional cloud coaching requires a supported provider, your API key and your consent to send data.
Where does my data go?
Your database stays on your device. Connected services exchange data directly with your phone. Optional cloud coaching sends the context you approve to your selected provider. Weather and maps contact their providers when used. Read the full privacy policy.
How do I delete my data?
Deleting Fjelia removes its local database. You can revoke service access and Apple Health permissions separately. Delete any backups or exports you created from wherever you saved them. Data held by connected services must be managed with those services.
Is this a medical app?
Fjelia is for fitness and general wellness. It is not a medical device and does not diagnose or treat conditions. Discuss health concerns with a qualified healthcare professional.
Help shape Fjelia
What would you like to see next?
Suggest a feature or a new device connection. Tell us how it would help you. Bug reports are welcome too.
Free and open-source software
Fjelia is licensed under the GNU General Public License, version 3 or later. Explore the code, build the app and help improve it.
Please note
Not a medical device. Recovery, readiness, blood-pressure and training values are informational and do not replace advice from a doctor. Some integrations are unofficial. Provider updates may affect syncing or availability.