Know what you take, and where to read about it.
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Every one of 5,800+ supplements and 125+ peptides, from magnesium glycinate to BPC-157 and retatrutide, links straight to public sources: Pm PubMed, CT ClinicalTrials.gov and, where they exist, NIH NIH fact sheets and FDA FDA pages, so you read the source, not a sales page.
Take a look inside.
Real screens from the app. Swipe through.







How it works
No account, no feed, no coaching. Just your stack and the sources.

1Add what you take
Supplements, prescription peptides, or anything your clinician directs. You set the amounts and times.

2See what's due today
Morning, afternoon and evening in one list, with a reminder at the times you choose.

3Log in one tap
Record what you actually took, when you took it. Skips are fine too.

4Supplements and peptides
Find the exact name on your bottle or prescription. Every peptide shows if it’s Rx, in trials or not approved.

5Open the source
One tap to FDA, NIH, PubMed or ClinicalTrials.gov. We say plainly what we haven't reviewed.

6Keep it yours
Everything stays on your iPhone. Export a CSV or JSON backup whenever you like.
Your amounts. Not our suggestions.
What a typical supplement app shows you, and what Clearstack does instead
Free, or Pro.
Start free. Upgrade only if your stack outgrows five items.

Everything you need
- Up to 5 active items
- Reminders and one-tap logging
- The full library: 5,800+ supplements, 125+ peptides
- CSV and JSON export

No item limit
- Track as many items as you like
- Everything in Free
- Supports an independent app with no ads
Free for your first five items.
The library, reminders, logging and export are all free. Pro only lifts the five-item limit. No ads, and nothing you log is ever sold, because we never receive it.
Questions, answered.
Is Clearstack medical advice?
No. It's a private record of what you take and a reference library. It never suggests doses, cycles or combinations. Talk to your clinician before you start, stop or change anything.
Can I track peptides?
Yes, prescription peptides like tirzepatide, as your prescriber directs. The library lists 125+ peptides with their US status (Rx, in clinical trials, not approved, or cosmetic ingredient), linking to FDA, PubMed and ClinicalTrials.gov. Peptides that are in trials or not approved are reference entries only; Clearstack doesn't schedule them. It never suggests doses; amounts are yours or your prescriber's.
Where is my data stored?
Only on your iPhone. There's no account, and nothing you log is sent to us. You can export a CSV or JSON backup, or delete everything, whenever you like.
Does Clearstack summarize the research?
Not yet. Every entry links to the original public sources, such as PubMed, ClinicalTrials.gov and, where they exist, NIH fact sheets. Written summaries will be added only after a named, qualified reviewer has checked them, and each will show who reviewed it and when.
How much does it cost?
The free plan tracks up to 5 items at once, with reminders, logging, export and the full library. Clearstack Pro removes the item limit.
When can I get it?
Early access opens on iPhone for a small group of testers first. Join the list and we'll email you about early access and launch, and now and then to ask for feedback. Every email has an unsubscribe link.
Your whole stack, in one calm place.
Join the early access list. We'll email you about early access and launch. Unsubscribe any time.
We'll use your email only for Clearstack early access and launch news. Unsubscribe any time. Privacy
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