Halflife - Peptide & GLP-1 Log

Tracker & Syringe Calculator

Only for iPhone

Free · In-App Purchases · Designed for iPhone

iPhone

We heard your feedback! Added the features you wanted, plus lots of QoL improvements. Light mode's next — contact@halflife-labs.com If tirzepatide, peptides, TRT, insulin, nootropics, and longevity compounds are part of the same protocol, fragmentation becomes the limiting factor. Halflife unifies multi-compound protocols into a single system for dosing, pharmacokinetics, adherence, inventory, and real-world performance tracking. Core System Tracks complete protocol stacks across GLP-1 medications, recovery peptides, growth hormone secretagogues, testosterone replacement, insulin, nootropics, sexual health agents, and longevity compounds in one environment. Every compound is logged within a unified timeline with dose history, vial stock, and schedule position. Concentration Curves Uses published pharmacokinetic data from FDA labels and peer-reviewed research to model active compound levels over time. Each compound is displayed as a live curve showing time to peak, current activity as a percentage of peak, and clearance trajectory. For signalling peptides with short plasma half-lives, biological effect windows model downstream activity beyond serum presence. Today Screen Central execution layer for all protocols. Shows due doses, week progression, remaining vial inventory, and one-tap logging. Injection site rotation is tracked automatically with recommended next-site selection based on prior usage history. Integrated syringe calculator converts vial concentration and target dose into exact draw volume. Protocol Tools Synergy Matrix evaluates compound interactions and stacking relationships. Reconstitution calculator standardises mixing workflows. Unit converter handles cross-format dosing precision. Vial runway calculator forecasts inventory duration. Adherence circle visualises protocol consistency. Compound Database Medically cited library covering tirzepatide, semaglutide, BPC-157, TB-500, CJC-1295, ipamorelin, testosterone esters, insulin protocols, nootropics, and longevity compounds. Biometric Intelligence Apple Health integration connects sleep, HRV, resting heart rate, and weight trends with dosing history. Correlation engine surfaces individual response patterns. Community System Pods, Challenges, Daily polls, and Community discovery. Data Model All health, dosing, and biometric data stored locally on device. Nothing transmitted externally. Scope Halflife is a protocol execution and analysis system for multi-compound regimens with overlapping pharmacology, structured adherence tracking, and biometric correlation. Supported compounds: 45 substances across GLP-1s, peptides, GH secretagogues, TRT, insulin, nootropics, sexual health, and longevity stacks. Free tier: two compounds with full logging, weight tracking, 4 free tools, Adherence Calculator and Community Access. Advanced unlocks unlimited protocols and full analytics. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://halflife-labs.com/privacy/

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After we got asked a lot, we added compounds such as caffeine and more, as well as a calendar now! We also added retroactive dose logging, so you can bring your history with you. Lots (and we mean a LOT) of QoL improvements. A few bug fixes. And more! If you have features you want, please contact us at contact@halflife-labs.com

Version 1.7

The developer, Ziad Soliman, 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 based, for example, on the features you use or your age. Learn More

    Accessibility

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

    Information

    Provider
    • Ziad Soliman
    Size
    • 61.9 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    9+
    In-App Purchases
    Yes
    • Halflife Pro Annual USD 24.49
    • Halflife Pro Annual USD 31.49
    • Halflife Premium USD 6.99
    • Learn More
    Copyright
    • © Ziad Soliman
  • Privacy Policy

    • More by Ziad Soliman

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