Your fitness. Clearly organised.
Turn everyday effort into visible progress.
FitCheck Duo brings your check-ins, progress photos, training, nutrition, WHOOP data and AI coaching together — so you always know what to do next.
✓ No card needed
✓ Private progress photos
✓ Connect WHOOP
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Progress centreWeight trend
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T
Your AI coachTim’s focus
Keep the momentum going
- Your consistency is building.
- Prioritise protein today.
- Recovery supports a strong session.
Tim
📷
Progress photosComparison ready
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WHOOP connectedRecovery synced
Everything working together
Stop guessing. Start seeing the full picture.
Most fitness apps track one thing. FitCheck connects the habits, measurements, photos, plans and recovery data that actually shape your results.
A journey you can explore
See every check-in on one interactive timeline. Spot photo updates, Tim’s reviews, trends and milestones without digging through spreadsheets.
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WHOOP in context
Recovery, sleep, HRV and strain appear alongside your check-ins — not isolated in another app.
82Recovery7.4Sleep12.8Strain
Compare what the scale cannot show
Overlay two progress photos and slide between them. Ask Tim for a measured, practical opinion on what has changed.
↔EarlierLatest
Simple by design
Four steps to better accountability.
Set your direction
Tell FitCheck what you want to achieve, your routine, food preferences and training likes.
Check in consistently
Log quick daily habits and a more detailed weekly check-in with optional progress photos.
Get a tailored plan
Paid members can generate training, nutrition, meal plans and practical feedback from Tim.
Adjust with evidence
Use real trends, recovery and reviews to make sensible changes instead of reacting to one day.
T
You
What should I focus on today?
Tim
Your recovery is strong. Keep today simple: hit your session, protein target and steps.
Meet Tim
Coaching that knows your context.
Tim is FitCheck’s AI coach. He can use your goals, check-ins, current plan, progress and connected WHOOP trends to make his guidance more relevant to you.
✦ Personal weekly reviews🎙 Voice or Ultimate video reviews💬 Ongoing coaching chat🍽 Meal plans with food weights
Discover how Tim works →
Start free. Request coaching when ready.
A membership for every stage.
Build your tracking history for free, then unlock personal AI coaching when you want more support.
Track check-ins, photos, goals and WHOOP data.
Start freePlans, meal plans, reviews, voice notes and chat.
Request accessThe same coaching with a much higher AI allowance.
Compare membershipsEverything in Plus, with Tim on screen for every check-in review.
See UltimateYour next chapter starts here
Start my free trial →
Make your progress impossible to ignore.
Create your free account, set your direction and start building a fitness history that actually helps you move forward.