Now on the App Store · 30 days of Premium free · Android coming soon
Supplement + medication intelligence

An AI that knows your entire stack. And your body.

Flexwell tracks your supplements and medications, flags risky interactions, and connects Apple Health plus your wearable data to show what's really moving your sleep, recovery, and energy. Meet Flex, an advisor that sees the whole picture, because it knows what you take and what your body is doing.

Download on the App Store See Flex in action

Free to download · 30 days of Premium on us · Free plan forever

9:41●●●
Flex
Flex
Your AI Supplement Advisor
Hey, I noticed you just added Turmeric to your stack. Since you take Rivaroxaban (Xarelto), this is worth flagging. Turmeric may increase its blood-thinning effect, which can raise bleeding risk. Worth checking with your doctor before you start.
Flex shares general wellness information, not medical advice.
Ask Flex anything about your stack...
My StackFlexInsightsProfile
$78B
spent on supplements in the US this year
70%
of adults take multiple supplements daily
1 in 3
don't take them consistently
92%
don't know the optimal timing for what they take
01 / The problem

You're spending real money on supplements. Are you getting anything out of them?

a.

Wrong timing

Fat-soluble vitamins on an empty stomach. Magnesium at noon. Timing changes everything, and almost nobody gets it right.

b.

No idea what's working

You take six things every day. Which one moved the needle? Without data, it's guesswork.

c.

Inconsistent habits

Skipped days quietly erase results. Most people never see how much consistency matters until they track it.

d.

Generic advice

Blog posts don't know your stack, your meds, or your goals. Advice that ignores context isn't advice.

02 / The fix

One app that knows your whole stack, and what your body does with it.

Smart Cabinet

A live database of thousands of supplements and medications. Add anything in seconds and see your full stack at a glance, organized the way you actually take it.

SEARCH
"magnesium gly..." → Magnesium Glycinate 400 mg · added to Bedtime
STACK
5 supplements · 1 medication · 2 schedules · 0 conflicts detected

Intelligent Reminders

Not just "take your pills." Every reminder carries a science-backed tip: absorption tricks, food pairings, and interaction warnings, timed to your day.

8:02 AM
Morning stack ready. D3 + Fish Oil + Turmeric. Take with breakfast, fat-soluble vitamins absorb 3x better with a meal.
9:30 PM
Take Magnesium + Ashwagandha now. Your deep sleep is up 22% since you started this combo 3 weeks ago.
REORDER
Running low on Fish Oil. Reorder now.
Flex, the Flexwell mascot
Flex, your AI advisor · the part nobody else has

Generic AI gives generic answers. Flex answers from your actual life.

Ask a chatbot about sleep and you get a blog post. Flex is different because it sees three things at once: your full supplement and medication stack, your real Apple Health and wearable data, and your goals, weighed against published research. Every answer is grounded in what you actually take and what your body is actually doing.

I've been having trouble sleeping. Melatonin doesn't seem to work anymore.
Flex · knows your stack + your watch I see you're taking Melatonin 5 mg. Interestingly, research suggests 0.5 to 1 mg is often more effective for sleep onset than higher doses. Two other things stand out: you're not currently taking Magnesium, which pairs well at bedtime. And your Apple Watch shows screen time after 10 PM is up 40% this month. Blue light can suppress natural melatonin.
+ Add Magnesium Glycinate to my evening schedule
Flex · proactive · interaction flag You just added Turmeric, and you take Rivaroxaban (Xarelto). Turmeric may increase its blood-thinning effect, which can raise bleeding risk. Worth checking with your doctor before you start.

Flex shares general wellness information, not medical advice.

Why nothing else can do this

a.
Your full stack, supplements and medications.
Doses, timing, and how everything interacts with everything else.
b.
Your real health data.
Apple Health and wearable signals: sleep, heart rate, recovery, even screen time.
c.
Your goals, grounded in published research.
Advice that supports what you're working toward, not a generic top-10 list.

Everything else on the market is a generic chatbot with zero context about you, or a reminder list with no brain. Flex is the only advisor where your stack, your data, and your goals converge in one place.

Wearable Insights

Apple Watch, Oura, Whoop and more. Flexwell lines your stack up against real sleep, heart rate, and recovery data so you can see what correlates with what.

▲ 22%
Deep sleep
since Magnesium Glycinate · 1h42m → 2h04m
▼ 4 BPM
Resting heart rate
since Fish Oil, 6 weeks · 68 → 64
▲ 3.1 lbs
Lean mass
since Creatine · 8 weeks
● 71%
Consistency dipped
3 missed evening doses this week

Correlation examples are illustrative. Individual results vary.

03 / How it works

Three steps between you and actual answers.

1

Add your supplements

Search a live database of thousands of products. Your whole stack, in the app, in a couple of minutes.

2

Get optimized

Flexwell builds your ideal schedule with timing tips, interaction warnings, and absorption hacks baked in.

3

See real results

Connect your wearable and watch the data. Sleep, heart rate, recovery, side by side with your stack.

04 / Connects to

Your data is already out there. Put it to work.

Apple WatchOura RingWhoopFitbitGarminCGMsMyFitnessPalSmart Scales

Via Apple HealthKit, Google Health Connect, MyFitnessPal and smart scale APIs.

05 / Roadmap

Flexwell gets better every week.

Medication Interaction Checker

Available now

Blood Test Integration

Building now

Personal Correlation Insights

Building now

Proactive Flex Alerts

Building now
06 / Versus

Other trackers count pills. Flexwell connects the dots.

FlexwellTypical trackers
Wearable sync (Apple Watch, Oura, Whoop)Built inRare or none
Interaction checking, supplements + medicationsYes, bothUsually neither
Correlation analyticsYesNo
Science-backed timing tipsOn every reminderGeneric alarms
Blood test integrationBuilding nowNo
Free tierUnlimited, foreverCapped or paywalled
07 / Pricing

Free forever. Premium if you want the deep stuff.

Free

$0
forever · no card, no catch
  • ✓Unlimited supplement + medication tracking
  • ✓Apple Health & wearable sync
  • ✓Smart reminders with timing tips
  • ✓Interaction checker
  • ✓Wellness Center
Download free
Most popular

Premium

$5/mo
or $50/yr · saves 17%
  • ✓Unlimited Flex AI advisor
  • ✓Personal correlation insights
  • ✓Proactive alerts
  • ✓"Compare to my stack" on any product
  • ✓Personalized weekly digest
Start 30 days free

Everyone starts with 30 days of full Premium. No card required.

"We've sold over 500,000 bottles of supplements in 14 years. We didn't just build an app. We solved our own problem."
— The Flexwell Team
14+years in supplements
500K+bottles sold
100K+customers served

Stop guessing.
Start knowing.

Download free. 30 days of Premium on us, then a free plan forever.

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