PepSync - Peptide Calculator

Peptide Calculator & Logger

Free · In‑App Purchases

PepSync is the most accurate peptide reconstitution and dose calculator built for researchers who want precision without complexity. No subscriptions. No account. No internet required. Just open it and calculate. Whether you're working with BPC-157, TB-500, Ipamorelin, CJC-1295, or any other research peptide — PepSync handles the math instantly and accurately. WHAT PEPSYNC DOES • Reconstitution calculator — enter your peptide amount and BAC water volume, get exact concentration instantly • Dose calculator — input desired dose and syringe type, get precise draw units with a visual syringe guide • Multi-peptide blend calculator — calculate complex stacks with multiple compounds in one vial • Reverse calculator — know your units, work backwards to find the dose • BAC water calculator — find the ideal water volume for any vial size TRACK & LOG • Vial tracker — monitor remaining volume across multiple active vials • Injection log — complete history of every dose with date, time, site, and amount • Protocol builder — create full research cycles with scheduling and progress tracking • Cycle tracker — visualize your protocol timeline from start to finish • Session streaks — maintain consistency with dose tracking REFERENCE LIBRARY • 20+ peptides with research dosage ranges, half-lives, and storage info • Syringe conversion charts (U-100, U-50, U-40, U-30) • Unit converter (mcg ↔ mg ↔ IU) • BAC water guidelines and storage reference • Sterile reconstitution technique guide PRIVACY FIRST • 100% offline — works in your garage, lab, or anywhere with zero internet • No account required — open the app and start calculating • No subscription — one payment, yours forever • Your data never leaves your device. Ever. For research and educational purposes only. Not medical advice. Consult a qualified healthcare professional before use.

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Accuracy and clarity update: Added Show Math breakdown for dose calculations Improved mg/mcg dose handling Improved syringe and volume calculation validation Improved blend calculation reliability Fixed protocol dose unit handling Improved vial tracker behavior Added stability and calculation clarity improvements

The developer, Rapid Sync IT LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Rapid Sync IT LLC
    Size
    • 2.4 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    Languages
    • English
    Age Rating
    16+
    • 16+
    • Frequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    In-App Purchases
    Yes
    Copyright
    • © 2026 Rapid Sync IT LLC