Why sign up
One log for every sportLifting, running, cycling, swimming, yoga, HIIT, tennis, pickleball, golf, CrossFit, surfing, paddle and more — a single history, not five separate apps.
PRs and records, found for youPersonal records, all-time bests, streaks and grades are detected automatically as you log. No spreadsheet to keep.
GPS routes + wearable syncMap runs, rides, hikes and paddles with GPS, and connect a watch or heart-rate strap to pull in the numbers you already track.
Challenges, duels & a weekly leagueTake on daily challenges, go head-to-head in a duel, or climb the weekly league — some challenges even run with a shared cash prize pool.
Nutrition, fully built inLog meals against calorie and macro targets, build from recipes and saved templates, plan meals ahead with a shopping list, and keep fuel and training in one honest picture.
Groups & communityJoin groups, share to a social feed, and connect with friends — then take on group and team challenges together and climb the weekly league.
Bring your own coachConnect a coach with a share code or invite, get training plans built for you, and receive feedback right on each session — entirely optional. Bring your own coach, or find one when you are ready.
20+ sports and growing
Find yours below — each with the right fields built in, from a tennis match score to a run’s splits.
Strength
Running
Cycling
Swimming
Rowing
Hiking
Walking
Elliptical
Cardio
Yoga
Pilates
HIIT
Climbing
Tennis
Pickleball
Golf
Basketball
Soccer
CrossFit
Boxing
Volleyball
Surfing
Paddle
Connect your watch
Connect your watch
- Apple Health
- Apple Watch
- Google Health Connect
- Wear OS
- Garmin
- Fitbit
- Oura
- WHOOP
Pull in heart rate, calories, sleep, and workouts automatically — connect Apple Health / Apple Watch and Google Health Connect (Android / Wear OS) on your phone, or link Garmin, Fitbit, Oura, and WHOOP. Optional, and any third-party integration fee is passed straight to you at cost — the Centennial software itself stays free.
Everything you train for, in one app
Log every session and meal, watch your numbers climb, and turn the work into points, duels, and a weekly league.
Everything included
Track
- 19+ sport types, each with the right fields
- GPS route + splits for runs, rides, hikes, paddles
- Wearable & heart-rate sync
- Automatic PRs, all-time records, streaks & grades
- Body metrics and progress photos
Compete
- Daily challenges
- Head-to-head duels
- Team challenges
- Weekly league standings
- Optional shared cash prize pools (tracked, no rake)
Fuel
- Meal logging with calorie + macro targets
- Recipes and saved meals
- Nutrition templates and meal planning
- Shopping lists built from your plan
Groups & coaching
- Groups you can join
- A social feed of your training
- Friend connections
- Group & team challenges
- Bring your own coach — they see your training in detail
- Training plans assigned to you + per-session feedback
The questions everyone asks
Do I need a wearable or any equipment?
No. You can log everything by hand in seconds. If you do have a watch, a heart-rate strap, or phone GPS, connect it for automatic routes and metrics — it is optional, not required.
Which sports does it actually support?
Strength lifting, running, cycling, swimming, rowing, hiking, walking, yoga, HIIT, CrossFit, boxing, climbing, and racquet / court / field sports like tennis, pickleball, golf, basketball and soccer — each with fields built for that sport (a match score for tennis, to-par for golf, splits for a run).
Can I really win money in challenges?
Some challenges run with an optional prize pool that participants pledge into; winners split the pool evenly with no rake. It is entirely opt-in — most challenges are just for points and bragging rights.
Can I connect my own coach?
Yes. Link a coach with a share code or invite and they can see your training in full detail, assign you training plans, and leave feedback right on your sessions. It is entirely optional — bring your own coach, or find one when you are ready.
Is my health data private?
Yes. Your data is yours — encrypted in transit and at rest — and you choose what you share with friends or a coach. You can download or export your data anytime, free.
Up and running in three steps
01Create your accountEmail and a password — no credit card, no trial clock.
02Log your first workoutLog by hand in seconds, or connect your watch and let it sync automatically.
03Compete and climbHit a challenge, duel a friend, and watch your weekly league rank rise.
Questions, answered
Is Centennial Fitness really free?
Yes — every feature is free, forever, with no credit card and no premium plan to upgrade to. The only costs that ever exist are optional and pass straight through at cost: third-party health-app integrations (Apple Health / Google Health), and card processing only if you ever use ours. Create an account and start logging right away.
Does it include nutrition, groups, and coaching?
Yes — all included, free. Log meals with calories and macros, build recipes, templates and a meal plan; join groups and a social feed with group and team challenges; and connect your own coach to get training plans and per-session feedback.
Does it work on my phone and my laptop?
Yes. Centennial Fitness runs on the web and as a mobile app, and your training stays in sync across both.
What do you do with my health and fitness data?
It is yours — and you can download or export it anytime, free. Data is encrypted in transit and at rest, and you control what you share. See our Security and Health & Fitness Data pages.
Get started
Start training — free
Create your account and jump straight into today’s workout.