The app
What is PeptidesAI?
PeptidesAI is an iPhone app for tracking peptide research protocols. It does the reconstitution math for you and outputs syringe units, then tracks your doses, vials and reminders in one place.
What can PeptidesAI do?
PeptidesAI includes a reconstitution calculator with BAC water guidance that outputs syringe units, a 70-compound research encyclopedia with mechanism, half-life and research summaries, dose logging with streaks, dose and vial-expiry reminders, an injection-site rotation body map, vial inventory tracking, an AI assistant for questions, iCloud sync, Apple Health weight import, progress photos and a home-screen widget.
What devices and languages does PeptidesAI support?
PeptidesAI is iPhone only (iOS). It's available in English and Spanish, and follows your device's language setting.
Is PeptidesAI medical advice?
No. PeptidesAI is an educational reference and calculator. It does not provide medical advice, diagnosis or treatment, and it is not a substitute for a qualified healthcare professional.
Pricing and subscriptions
Is PeptidesAI free to download?
PeptidesAI is free to download. Full access is a subscription (weekly, monthly or yearly), and some plans include a free trial for new subscribers. Prices vary by country; the App Store shows the price for your region before you confirm.
How do I cancel my subscription?
Open Settings on your iPhone, tap your name at the top, tap Subscriptions, choose PeptidesAI, then tap Cancel Subscription. Cancelling stops future renewals; you keep access until the current period ends.
How do I restore a purchase I already made?
Open PeptidesAI, go to the paywall screen, and tap Restore Purchases. This restores an active subscription tied to your Apple ID after reinstalling the app or on a new device.
Privacy
What data does PeptidesAI collect?
Your stack, dose log, vials, notes and settings are stored on your iPhone and, with iCloud sync (on by default), in your private iCloud. Separately, the app sends usage analytics, including anonymized session recordings and crash reports, to PostHog, and messages you send to the AI assistant are passed to Anthropic to generate the reply. You can turn analytics off in Settings → Health & Data. Full details are in the privacy policy.
Does PeptidesAI show ads or sell my data?
No. There are no ads, no advertising identifiers and no location tracking, and your data isn't sold. The app does use product analytics, described in the answer above, to understand which features people use.
Does my data sync to iCloud, and can PeptidesAI see it?
iCloud sync is on by default when your iPhone is signed in to iCloud, and you can turn it off in Settings. Your data is stored in your private iCloud using Apple's CloudKit, encrypted by Apple. PeptidesAI can't read it.
How do I delete my data?
In the app, go to Settings → Reset All Data to remove all on-device data (use Settings → Export My Data first if you want a CSV copy). To remove the iCloud copy, go to iOS Settings → your name → iCloud → Manage Storage → PeptidesAI → Delete Data. To request deletion of analytics data linked to your device, email [email protected].
Reconstitution basics
How many mcg are in 1 mg?
1 milligram (mg) equals 1,000 micrograms (mcg). A 5 mg vial contains 5,000 mcg. See the syringe units to mg and mcg guide for more conversions.
How many units are in 1 mL on a U-100 insulin syringe?
A U-100 insulin syringe holds 100 units per mL, so 1 unit is 0.01 mL. A 0.3 mL syringe holds 30 units, a 0.5 mL syringe 50 units and a 1 mL syringe 100 units. Full tables are in the syringe units to mg and mcg guide.
How do I calculate a vial's concentration after reconstitution?
Concentration (mcg/mL) equals the vial's amount in mcg divided by the water you add in mL. A 5 mg (5,000 mcg) vial with 2 mL of water is 5,000 ÷ 2 = 2,500 mcg/mL. Enter your own numbers into the peptide reconstitution calculator to get the syringe units for a given dose.
Still have a question?
Email [email protected] and we'll get back to you, or try the reconstitution calculator directly.
Download on the App Store