Every creator vetted. No ads. Ever.

The health and wellness app that feels like TikTok and thinks like a clinic.

Open Twelve and a vertical feed loads. Short-form videos from fitness coaches, longevity researchers, and registered dietitians — the same scroll you already know, except every creator has been vetted for real credentials and there isn't a single ad in your feed.

✓ Scrollable creator feed✓ Vetted credentials only✓ No ads, no algorithm✓ Free to download
Available on the App StoreGet it on Google Play
100%
Vetted creators
$0
Ads. Ever.

The internet has a health content problem. You've felt it.

Most health apps have no credential requirements. Wellness apps recommend supplements from influencers with no qualifications. The result is a promise of trustworthy content that still delivers unvetted advice.

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No Credential Checks

Instagram and TikTok have zero verification. Anyone can give health advice. Credentialed creators compete against unqualified influencers with no visible difference.

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Algorithm Over Expertise

No platform puts quality first. What surfaces is what gets clicks — not what's accurate, not what's safe, not what's right for your goals.

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No Way to Measure Learning

Even the best health content vanishes into a scroll you'll never find again. You watch, you forget, you watch again. There's no memory, no structure, no record.

Your health expertise, tracked in real time.

Twelve's AI Skills Dashboard measures your health knowledge the same way a fitness tracker measures your steps — continuously, automatically, and personally.

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Real-time skill tracking across 4 disciplines

Fitness, Nutrition, Longevity, and Biohacking — each tracked independently. Every action, every session, every insight counts.

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Four progression levels: Beginner → Expert

Your level is calculated from hours of content watched, quiz accuracy, and engagement consistency. It's not self-reported — it's AI-verified.

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Personalised content recommendations

Intermediate at Nutrition but Advanced at Fitness? Twelve's AI surfaces more nutrition content to balance your profile — if you want it.

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Expert level unlocks creator eligibility

Reach Expert in any discipline and become eligible to apply as a vetted Twelve creator. Your dashboard data is submitted as evidence.

Alex's Health Skills
Last updated: just now · 54h total learning
FitnessExpert ⭐
32h85% accuracy↑ +2h this week
Longevity HacksAdvanced
12h80% accuracy↑ +1h this week
NutritionIntermediate
8h88% accuracy→ no change
BiohackingBeginner
2h72% accuracy↑ New this week
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Fitness Expert — Creator Application Unlocked
Your learning data qualifies you to apply as a vetted creator.

Every video ends with a question. That's the point.

Research shows testing yourself after learning increases retention by up to 50%. Twelve's AI generates a personalised quiz after every video — questions built from exactly what that creator just taught you.

01
Watch a video
Any creator, any topic
02
AI generates quiz
From that exact video
03
Skills update
Dashboard reflects score

Questions built from the creator's content

Not pulled from a question bank. The AI reads the video transcript and generates questions specific to what that creator said, at your current knowledge level.

Accuracy feeds your Skills Dashboard

Each quiz score is weighted into your skill level calculation. Consistent accuracy = faster progression. Wrong answers surface the same topic in future recommendations.

Skip when you want to

Quizzes are opt-in and always available after the video ends. Take them when you're in learning mode. Skip when you're not.

After watching: "Zone 2 Training for Longevity" — Dr. Marcus T., NASM-CPT
According to this video: what is the primary metabolic adaptation that makes Zone 2 cardio superior for longevity compared to high-intensity training?
Increased VO2 max ceiling
✓ Improved mitochondrial density and fat oxidation efficiency
Higher glycogen storage capacity
Reduced cortisol response
Correct — +15 XP · Longevity skill
"Mitochondrial density is the primary driver of fat oxidation — Dr. Marcus covers this at 4:32 in the video."
Next questionSkip for now

Four disciplines. Infinite depth.

Every creator on Twelve is vetted within one of four core health disciplines. Browse by what matters to you — or track all four.

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Fitness & Training

Certified personal trainers and strength coaches. Programming, periodisation, injury prevention, mobility work. Evidence-based, not trend-based.

NASM · ACE · NSCA · CSCS certified creators
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Nutrition & Dietetics

Registered dietitians and nutritionists. Meal planning, clinical nutrition, sports nutrition, gut health, metabolic health. No supplement shilling.

RDN · MS Nutrition · Registered Nutritionist verified
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Longevity & Biohacking

Researchers, MDs, and longevity practitioners. NAD+, autophagy, sleep optimisation, zone 2 training, cold exposure, continuous glucose monitoring.

PhD · MD · Research-backed protocols only
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Health Coaching

Certified health coaches covering stress management, sleep, habit formation, mental wellness, and lifestyle medicine. Holistic and evidence-adjacent.

NBC-HWC · IIN · ACE Health Coach verified

What if your health knowledge could become your income?

Twelve is the only platform where becoming an expert isn't just satisfying — it's the beginning of a new career path. Reach Expert level and become eligible to apply as a vetted creator.

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Download free
Browse vetted creators. Start watching.
📚
Learn consistently
Complete quizzes. Build your skill score.
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Watch skills grow
Dashboard updates in real time.
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Reach Expert
AI verifies your expertise level.
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Apply as Creator
Start earning from your knowledge.
"I joined as a member. Six months later I was a vetted creator with 200 paying subscribers."
Beta Member → Creator · Fitness discipline · Expert level achieved in 5.5 months

Your questions, answered.

Free to download

Start knowing more about your health — starting today.

Browse vetted creators for free. Take AI quizzes. Watch your skills grow. And when you're ready — you can earn from what you know.

Available on the App StoreGet it on Google Play

Free to browse · Pay only for what you choose · Cancel subscriptions anytime