Tinder for Your Supplements.

Swipe right on what works. Break up with what doesn’t.

BioStackr shows you what actually works — and what’s just wasting your money.

Free to start. Wearable optional.

The Honeymoon Is Over.

Because ‘maybe it’s working’ isn’t good enough anymore.

THE MONEY SAVER

Dropped 4 supplements. Saving €90/month. Should’ve done this years ago.

— Marcus T., saving €90/month

THE STACK REDUCER

From 12 bottles to 3 that actually moved the needle. Same results, less clutter.

— Jen, dropped 9 supplements

THE SKEPTIC

Thought it was all guesswork. Only one thing really helped.

— @biohack_ben, Whoop user

THE BRAND TESTER

Same ingredient, two brands. One made a difference, one didn’t. Now I know which to keep.

— Sophie K., tested 2 brands

THE SIMPLIFIER

Less really is more. Fewer pills, clearer routine.

— David, simplified his stack

THE NIGHT SHIFT

HRV steadier on the nights I take it. Fewer 3am crashes.

— ER nurse, nights

THE REALIST

I stopped guessing. Now I know what’s worth paying for.

— Alex P.

THE RESET

After years of trying everything, I finally reset to what works.

— Priya, back to basics

Everyone's looking for "The One."We help you find the 3–5 that actually work. (Or 15. No judgement.)

It takes years to find the right partner. Your supplements? About two weeks.

THE PROBLEM

Reddit isn't research.

THE REALITY

Most supplement advice is vibes, anecdotes, or influencer chemistry.

THE FIX

You test them.
You measure them.
You keep the ones that show up.

65–75% of supplements show no measurable effect.

Your data tells the truth. Marketing doesn't.

The Average Divorce Costs $15,000.Ten Years With the Wrong Supplements? About the Same.

Let's talk about the relationship you've been quietly paying for.

You're not sure it's working. But you're not sure it isn't.

So you keep paying. Month after month. Year after year.

$247
$0$200$400
Estimated wasted per year
$1,482
Estimated wasted over 10 years
$14,820

For supplements you're not actually sure are doing anything.

This is your real-life experiment.

Supplements don’t work in isolation. They reveal themselves — or don’t — through missed doses, bad sleep, stress, and inconsistency.
BioStackr measures how each one performs in your real life, so you know which ones are worth committing to, and which ones aren’t.

WHAT YOU DO

Tell us what you’re taking. Your stack, what you’re taking it for, and what it costs you each month.

Check in briefly. Sleep, energy, mood. Three sliders. About ten seconds.

Flag unusual days (optional). Alcohol, illness, travel, high stress — one tap.

WHAT WE DO

Compare better days to worse ones. Days with a supplement vs days without.

Account for noise. Disrupted days don’t distort the signal.

Let patterns form naturally. No forced protocols. No artificial rules.

WHAT YOU GET

Matched — earning its place. Keep it.

Swipe left — no measurable benefit. Drop it.

Situationship — promising, but needs more data.

No guesswork. Just clarity.

How progress unfolds

Day 1 — Your stack is mapped. Progress starts immediately.
Week 1 — Clear direction begins to form.
Week 2+ — Confident verdicts start landing.
Ongoing — Confidence compounds as patterns repeat.

We Need to Talk

Here's what your data says. No hard feelings.

MATCHED

Vitamin D3

5000 IU Daily

Compatibility

89%
4 months together

Reliable. Shows up. Your energy scores are 23% better since you committed.

$138invested
SWIPED LEFT

Magnesium Glycinate

400mg Before Bed

Compatibility

22%
6 months together

Six months and your deep sleep hasn't budged. This one's coasting.

$174wasted

It's not you. It's your magnesium.

SITUATIONSHIP

Ashwagandha

600mg Morning

Compatibility

54%
2 months together

Stress is lower, but your energy dipped. Worth investigating.

$47spent
MATCHED

Fish Oil

2000mg Daily

Compatibility

76%
8 months together

Quiet but consistent. Joint pain down. Recovery up. The strong, silent type.

$128invested

We Don't Do Gut Feelings.

Same methods used in clinical trials. Now for your supplement drawer.

COHEN'S D EFFECT SIZING

The statistical gold standard for measuring whether something actually works.

It's how researchers separate real results from placebo. We apply the same rigor to your magnesium.

No vibes. No guessing. Just math that holds up.

ON vs OFF comparison — We compare how you feel on days with a supplement vs days without — not just trends over time
Noise filtering — Stress, alcohol, illness — excluded from the signal
Confidence thresholds — We don't call it until the data is clear
Effect size, not just correlation — Big enough to matter, not just statistically present

This is correlation-based analysis, not a clinical trial. But it's the closest thing your stack has ever had to peer review.

Are We Compatible?

Let's find out before this gets awkward.

Green flags:

  • You spend €50–€150/month and wonder if it's worth it
  • You track sleep, energy, or recovery — even casually
  • You'd rather know than hope
  • You're willing to break up with what isn't working

Red flags:

  • Your love language is denial
  • You think "I feel like it's working" is evidence
  • You'd rather not know the truth
  • You want every supplement to be "the one"

No judgment. But if you're still here, you already know.

Commitment Issues? Start Free.

You can stay casual forever. But if you want real answers, they're here when you're ready.

Starter

$0/month

$0/month
  • Track up to 3 supplements
  • Manual check-ins
  • Basic pattern insights
POPULAR

Premium

$19/month

$19/month
or $149/year • $12.42/mo • Billed annually
  • Unlimited supplements
  • Wearable data analysis
  • Cohen's d effect sizing
  • Full Breakup Reports

Stop Guessing. Start Knowing.

See which supplements are actually making a difference—and which ones you can finally let go.

© 2025 BioStackr. This is not medical advice. Consult a healthcare provider before making supplement changes.