Meet PepStackYour peptide/supplement daily tracker

Tell it your goal. It picks a short list and gives you the times to take them, then keeps you honest about whether you actually took them.

  • A short list for your goal, not a shelf of nine bottles.
  • Every item gets a time, built around when you wake and when you eat.
  • Every suggestion links to the paper behind it.
Download on the App Store
QR code that opens PepstackAI on the App Store

Scan to download

Available now on the App Store, for iPhone.

Pepstack on an iPhone, showing the Today screen: a week strip, an arc reading two left today, and a schedule of collagen at 8:00, omega-3 at 1:00 and copper with zinc at 9:00.

Every suggestion has a paper behind it.

Each recommendation links to the studies it came from, so you can read the thing itself rather than take our word for it. When the evidence is thin, the app says so instead of hiding it. Discover is where you read them.

Stacked tiles, one per ingredient reviewed.

Ingredients reviewed, including the ones that did not make the cut.

Six goal tiles: energy, immunity, sleep, training, skin and hair, and focus.

Goals covered at launch, each with its own sourced list.

The Home screen: a week strip, an arc reading two left today, and a schedule listing collagen peptides at 8:00, omega-3 at 1:00 and copper with zinc at 9:00.
The Discover screen: a search for a copper and zinc supplement, the paper behind it with its author and date, and a list of further studies.

What changes when you stop guessing.

Without it

  • Nine bottles on the shelf, half untouched.
  • Advice from a Reddit thread at midnight.
  • No idea whether the timing actually matters.
  • Three weeks of consistency, then nothing.

With Pepstack

  • Three things, and what got left out.
  • Every suggestion links to the paper behind it.
  • Each one gets a time, built around your day.
  • One screen showing what is left today.
Where do I get it?

PepstackAI is on the iOS App Store. There is no Android version yet.

Does it sell supplements?

Pepstack does not sell or ship anything itself. It shows you exactly where to buy each product, and some of those are affiliate links. If you buy through one we may earn a commission, at no extra cost to you. What gets recommended is decided by the evidence, not by what pays. If the honest answer is that you do not need a fourth thing, that is the answer you get.

Where does my data go?

Your schedule stays on your device. Nothing is sold, and there are no ads.

Who made this?

One person. I spent two years getting my own timing wrong and could not find anything that just told me what to take and when.

It is out. Go and get it.

Download on the App Store