Bring order to your
peptide protocol.
Vial Logic turns your peptide protocol into precise numbers: exact syringe units, accurate vial counts, and a clear log of every dose — all stored privately on your device. No cloud. No accounts. No compromises.
// transmission 03 — capabilitiesSix tools. One protocol.
From dose math to injection logging — Vial Logic handles the complexity so you don't have to.
Precise Dose Math
Enter vial strength and bacteriostatic water volume to get exact syringe units. The reconstitution advisor suggests BAC volumes that land on clean, easy-to-read marks.
Multi-Phase Planning
Build protocols with per-phase dosing, frequency, and custom weekday schedules. Calendar planner shows the full plan ahead with filter chips and local reminders.
Smart Inventory
Track remaining doses per vial, get alignment warnings, and see expiry calculated from reconstitution date — with per-vial overrides when needed.
One-Tap Logging
Record doses instantly with a body-map injection-site picker and full rotation history. Skipped doses are tracked too, so your log reflects reality.
See the Whole Picture
Pharmacokinetic simulator charts estimated levels. Track lab biomarkers with trend sparklines, AI-assisted import, daily check-ins, and progress photos.
Research Library
Browse organized reference data on commonly discussed peptides for quick lookup while you plan and log your protocols.
// transmission 04 — interfaceBuilt for clarity
Every screen designed to give you precision and control over your protocol.
// transmission 05 — privacyYour data stays yours
Vial Logic is private and offline-first. Your health information never leaves your device.
Offline-first by design
Your data lives on your device. No account required, no cloud profile, no selling your health information. Export protocols, doses, and labs to CSV whenever you want your records elsewhere.
Works fully offline
Every calculation, every log entry, every reminder — it all happens locally. No network connection needed. No data harvesting. No third-party analytics. Just you and your protocol.
// transmission 06 — pricingSimple. Transparent.
Start free. Upgrade when you need more.
Free
- Up to 4 protocols
- Up to 4 vials
- Full dose calculator
- Injection logging
- Research library
Vial Logic Pro
- Unlimited protocols
- Unlimited vials
- All free features
- Pharmacokinetic simulator
- Lab biomarker tracking
- AI-assisted lab import
- Progress photos & trends
Important: Vial Logic is a tracking, calculation, and educational reference tool. It does not provide medical advice, diagnosis, treatment, or prescriptions, and it does not sell or supply any substances. Calculations are aids, not clinical recommendations — always verify your own math and consult a qualified healthcare professional about anything you take.
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your Apple ID settings.
Start tracking with precision.
Download Vial Logic today and bring order to your protocol.
▸ Download on the App StoreRequires iOS 16 or later