Before you download
What is Milligram?
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.
Is Milligram legal?
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.
Is this medical advice?
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.
Why doesn't Milligram tell me what dose to take?
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.
What if my doctor asks what app I'm using?
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.
Which iPhones does Milligram run on?
Any iPhone on iOS 17 or later.
Which languages does Milligram speak?
English, German, Portuguese (Brazil), Spanish, French, Italian, Swedish, Turkish and Polish. Milligram Intelligence answers in the language the app is set to.
Is there an Apple Watch app?
Yes. The Apple Watch app shows what is due and lets you log a dose from your wrist. There are home screen and Lock Screen widgets on the iPhone too.
Using the app
What does Milligram Intelligence actually do?
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.
How is Milligram Intelligence different from ChatGPT?
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 Intelligence has access to your protocol and 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.
Can I use Milligram from Claude or ChatGPT?
Yes. Connect Claude or ChatGPT to your account at milligramapp.com/connectors. Once connected, it can read your stack, your doses and schedules, the doses you logged or skipped, and your vials. It cannot read your notes, bloodwork, journal, photos, body measurements, Apple Health data or chat history, and it cannot change anything in your log.
You can unlink it any time on the same page or in the assistant's own connector settings. Details are in section 13 of the privacy policy.
How does “Level Buildup” work?
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.
Does Milligram model my whole stack, or one compound at a time?
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.
Does it work without Apple Health?
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.
Does it work without signing in?
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.
Why iOS only? When Android?
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.
Can I use it for compounds you don't support?
The app covers over 200 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.
Can I export my data?
Yes. Profile, Export Data (CSV) saves your dose history as a CSV file. Meals export from Profile, Health Data, Nutrition, Export meals as CSV.
Money, data and account
How does the free trial work?
Yearly plans start with 3 days free. You're charged on the date shown before you pay, unless you cancel before then: cancel before the trial ends and nothing is charged. Monthly plans have no trial and are charged when you subscribe. 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.
Monthly or annual?
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.
How do I cancel?
It depends where you paid. Paid through the web checkout: go to milligramapp.com/manage, or Profile, Manage subscription in the app. Paid through the App Store: iPhone Settings, tap your name, Subscriptions, Milligram. Deleting the app does not cancel. You keep Pro until the end of the period you paid for.
Emailing us does not cancel a subscription.
How do refunds work?
Paid through the web checkout: email support@milligramapp.com and we'll look at it under our refund policy, details at milligramapp.com/refunds. Paid through the App Store: Apple handles refunds at reportaproblem.apple.com.
What's the Founding Member badge?
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.
Does Milligram Intelligence train on my chats?
No. Your data is never used to train AI models, by us or by the AI provider we use. Our agreement with the provider explicitly prohibits it.
Your conversations with Milligram Intelligence are kept in your account until you delete your account, and you can delete any conversation at any time. After answering, the AI provider may keep what it processed for no longer than 60 days, strictly for safety and abuse monitoring, and then deletes it.
Where does my data live?
On your device wherever possible. Your account data syncs to our cloud database, hosted in Australia and encrypted at rest and in transit, and only your account can read it. Photos and bloodwork are kept in encrypted file storage tied to your account and are never made public.
Apple Health data is never synced to our servers. It stays in Apple Health and on your phone, and the only time any leaves is when you ask Milligram Intelligence something that needs it, and then only the figures that question requires.
Your account data, including your conversations with Milligram Intelligence, is kept until you delete your account. The AI provider keeps what it processes for no longer than 60 days, for safety and abuse monitoring only. The full detail is in the privacy policy.
What happens to my data if I delete my account?
Delete it in the app under Profile, Delete Account. That permanently deletes your account's records: your protocol and dose history, logged meals, health records, your conversations with Milligram Intelligence, and any photos and lab documents you uploaded. There is no recovery after deletion, so if you want a copy first, export it before you delete.
Uninstalling the app does not delete your account, and deleting your account does not cancel a subscription. Records of purchases made directly from us are kept for seven years, as Australian tax law requires.
What happens if Milligram shuts down?
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.