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Centennial Fitness
For Athletes

Train, track, and stay motivated.

Log workouts and nutrition, hit daily challenges, duel friends, and climb the weekly league.

Get startedContact us
Workout & nutrition trackingLog training and meals and watch your progress add up.
Challenges & duelsDaily challenges and head-to-head duels to keep you honest.
Leagues & recordsClimb the weekly league and set new personal records.
See it in action

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.

Workouts screen showing weekly streak, sessions this week, active time and a start-a-workout button.
WorkoutsLog strength sets and activities in real time and watch your weekly training add up.
Nutrition diary with a calorie ring and protein, carbs and fat progress bars above the day’s meals.
NutritionSet macros, log meals, and keep fuel and training in one honest picture.
Insights screen breaking down sessions, distance and time this week and this month across every sport.
InsightsSee your training by sport, week and month — every session counted automatically.
Weekly League standings showing your rank and points, with a workout-of-the-week panel.
LeagueEvery workout earns points toward a weekly league that resets each Monday.
Centennial Fitness home dashboard showing today’s workout, nutrition, streak, weight and quick-log tiles.
TodayYour whole day at a glance — training, nutrition, streak and quick actions in one place.
Pricing

Free for everyone.

Every feature is included for every member. No tiers, no trials, no credit card — just create an account and start.

Centennial Fitness
$0/ forever
Every feature included · No credit card required
  • Workout and activity tracking on web + mobile
  • Nutrition logging with macro targets
  • Insights across every sport
  • Daily challenges, duels, and weekly leagues
  • Personal records and streaks
Get started freeFree on web and mobile. Cancel anytime — there’s nothing to cancel.
VoicesSample content

How members could describe it

Sample testimonials — real member stories coming soon.

Logging is fast enough that I actually keep it up. Seeing the weekly numbers climb is what keeps me showing up.
— Sample athlete review[Member name] · Marathoner, logs daily
The duels with my training partner are ridiculous — in the best way. I’ve never been this consistent.
— Sample athlete review[Member name] · Lifts 4×/week
Having workouts and nutrition in one place finally made the whole picture make sense.
— Sample athlete review[Member name] · Multi-sport athlete
FAQ

Questions, answered

Is Centennial Fitness really free?

Yes — every feature is free, forever, with no credit card required. Just create an account and start logging.

Do I need any equipment or a wearable?

No. You can log everything by hand. If you have a device that tracks heart rate, sleep, or HRV you can connect it for extra insight, but it’s optional.

What do you do with my health and fitness data?

It’s yours. Your data is encrypted in transit and at rest, and you control what you share with friends or a coach. See our Security and Health & Fitness Data pages.

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.

Start training with intent.

Create your free account and bring your training, nutrition, and community together today.