Before you download.

An iOS app that runs your peptide and compound protocols through trial-grade pharmacokinetic math, so you can see what's actually happening in your body. Dose scheduling, blood-level modelling, bloodwork uploads with biomarker extraction, photo scans, and a built-in AI advisor that knows your specific protocol. It's a tool, not a service.

Yes. Tracking what you put in your body is information management. Same legal posture as logging food, sleep, or workouts. The legal questions sit upstream (where the compound came from, what your prescription situation is) and downstream (how you use the data). Milligram does not source, distribute, or sell compounds and never will.

No. Milligram surfaces what's happening in your body based on your dose history and the trial literature. It does not diagnose. It does not prescribe. It does not replace a clinician for the decisions that should involve one. If you read your level on Milligram and decide what to do about it, that decision is yours.

Because the only honest answer to "what should I take" involves your specific physiology, your specific labs, your specific goals, and a clinician who knows you. An app that pretends to short-circuit that conversation is a worse app, not a better one. Milligram will model what your current dose is doing and what a hypothetical change would produce. The decision is yours.

Tell them. Show them the source list (over 100 papers, all clickable, organised by compound). The point of Milligram is not to bypass your clinician. It's to give you the analytical tooling that the legacy health software does not, so you can have a more substantive conversation with the people in your medical life.

It reads your dose history, your bloodwork, your biomarker trends, your protocol context, and answers questions about your specific situation. Not generic information about peptides. Your specific Cavg, your specific buildup percentage, your specific receptor occupancy at the timestamp you asked. Every quantitative claim is cited to the underlying paper. It refuses to prescribe. It refuses to recommend sources.

ChatGPT doesn't have your dose history. It doesn't know what compounds you're on. It doesn't run pharmacokinetic math on your data. It is, by design, a general-purpose chatbot. Milligram's AI has access to your protocol and 26 specialised tools for receptor occupancy, PK trajectory projection, trial-band comparison, and biomarker correlation. The output is grounded in your data and cited to the literature. Nothing is improvised.

It's the percentage of your steady-state plasma concentration that your body has reached at any given moment, based on your full dose history. Computed with a two-rate Bateman model for sustained-release compounds, titration-aware so it tracks dose escalations correctly, with Monte Carlo confidence bands using published inter-individual coefficients of variation. The single percentage you see in the app is the median estimate; the band around it is the p5-to-p95 range.

Both. Each compound is modelled individually, and the app surfaces combined effects where the science supports it. Receptor occupancy across a multi-agonist stack, for example. It will tell you when your stack is redundant (two compounds saturating the same receptor) and where it's complementary.

Yes. Apple Health integration is optional. It enriches the model with your wearable data (sleep, HRV, weight, body composition) where you've granted permission, but the pharmacokinetic engine runs entirely on your dose log if that's all you give it.

No. You need to Sign in with Apple to use the app. This isn't a marketing capture. It's how your subscription, your data, and your AI conversation history follow you across reinstalls and devices. No email lists. No name capture. Just an Apple ID identifier.

iOS only because building well for one platform alone is hard enough. The user base for this category is concentrated on iOS. Android is on the roadmap. Honest answer for timing: probably 2027, possibly later. If you're on Android and want to be notified when it ships, email me.

The app currently covers 100+ compounds across peptides, GLP-1 agonists, androgens, SARMs, and supportive compounds. If you want one that's not in the database, email me with the compound name. I'll usually add it within a week if there's enough published pharmacokinetic data to model it accurately. If there isn't, I'll tell you that too.

Yes. Settings → Export. CSV format for dose history, journal entries, and bloodwork extractions. Photos export to your camera roll separately.

Three days free on monthly. Seven days free on annual. Both auto-renew unless you cancel from your iPhone settings 24 hours before the trial ends. You can use every feature during the trial. If you don't keep it, you keep what you logged. Milligram never holds your data hostage to your subscription.

Annual is the better deal if you're going to track for more than three months. Monthly is the safer call if you're testing the waters or only running a short cycle. You can switch in either direction any time.

Apple handles all refunds. We never see your payment information. App Store → your profile → Purchase History → find the Milligram charge → Report a Problem. They process most refund requests within a few days.

A gold badge granted to anyone who signed up during the April 2026 free launch (April 7 to 30). It stays on your profile forever. We never advertise it externally. It's a thank-you to the people who showed up first.

No. Not by us. Not by any third-party AI provider we use. The agreements we have with them explicitly forbid training on user data. Conversations are retained for 60 days only for debugging and abuse detection, then purged.

On your device wherever possible. Apple HealthKit data never leaves your phone. Anything that has to leave (server-side AI, bloodwork PDF analysis) is encrypted in transit, processed, and retained only for what's necessary. 60 days for AI conversations. Indefinitely for your account data while your account is active.

It's wiped. Permanently. Across every system Milligram operates: the iOS local store, the AI proxy, the bloodwork analysis pipeline, the analytics pipeline, the social/friends backend if you opted in. Process completes within 30 business days. No recovery after deletion. If you want a copy of your data first, export it before you delete.

The app keeps working on whatever you have installed until iOS updates break it, but the server-side parts (AI, bloodwork analysis, friends backend) would stop. You would get advance notice and an export window. The reason we're structured the way we are (no VC, subscription-funded, low burn) is precisely so this is unlikely.

iPhone Settings → tap your Apple ID at the top → Subscriptions → Milligram → Cancel Subscription. You keep Pro through the end of the current billing period.