Every existing peptide tracker on the App Store has the same tells. Generic purple branding. Floating pills in the marketing shots. A feature dump in the description. An AI chatbot that answers basic questions and avoids the hard ones.
None of them look like they were built by someone who has actually reconstituted a vial at 6am, miscounted units, ruined the math, and wasted a $200 peptide they were excited to try.
We built Agonist because that's our morning. We're tired of asking ChatGPT how many units of a 5mg vial reconstituted in 2.5mL equals 250mcg, every single time we pin. We're tired of keeping a Notes app full of conversion math we can't trust. We're tired of guessing whether we used the left or right side last week.
What we believe
- Adults can make their own decisions. We're not here to gatekeep your protocol. We're here to make the protocol easier to run safely.
- Citations or it didn't happen. Every dosing range in our library links to a peer-reviewed source. We don't make claims we can't back.
- Your data is yours. Encrypted at rest. Optional biometric lock. Export anything, anytime. We never sell it. We never feed it to AI training pipelines.
- Design is not decoration. We chose Fraunces serif and Geist Mono on purpose. We chose light mode 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 show floating pills in our marketing. Peptides come in vials. Showing pills is a tell that the makers don't use the product.
- We won't paywall the basics. Reconstitution math is free, forever. Track three peptides free, forever. You only pay when you genuinely outgrow it.
What's next
Early access opens in summer 2026, Early access cohorts only. We're onboarding small groups so the feedback actually shapes the build. If that sounds like you, drop your email on the waitlist.
If you have something to say, write hello@agonist.app.