Built by people who understand the routine.

Agonist was built because scattered notes make simple questions hard to answer. What was due today? What did I actually log? Which vial is open? Which site did I use last time?

Those answers should take a second to find, not a scroll through three apps and a photo of a notebook.

We built Agonist because scattered notes make it hard to answer simple historical questions: what was planned, what was logged, which vial record was active, and which site was recorded last. The app keeps those facts together without choosing a protocol for the user.

What we believe

• Adults can make their own decisions. We're not here to gatekeep your protocol. We're here to make it easier to track with precision.
• Citations or it didn't happen. Reference claims link to their source and clearly identify the evidence type. A citation is context, not a recommendation.
• Your data is yours. Encrypted at rest. Delete your account from inside the app. Export on request — in-app export is planned. We never sell it. We never feed it to AI training pipelines.
• Design is not decoration. We chose Geist and Geist Mono on purpose. We chose a true-black interface on purpose. We chose clinical teal on purpose. The visual language signals what kind of tool this is — precise, quiet, made with care.

What we won't do

• We won't link to peptide vendors. Not now. Not for affiliate revenue. Not ever. Sourcing is your business; gray-zone legal exposure isn't ours to amplify.
• We won't pretend this is medical advice. It isn't. The disclaimer is firm and clear because the stakes are real.
• We won't sell or share your personal data. Peptides come in vials. Showing pills is a tell that the makers don't use the product.
• We won't blur records and recommendations. Agonist records what the user enters and shows what happened. It does not infer or prescribe an amount, route, or schedule.

What's next

Agonist is live on the App Store, and it keeps getting worked on. If something is missing or in your way, tell me and it has a real chance of changing. Download Agonist.

If you have something to say, write hello@agonist.app.