# Peptides OS > Personal peptide protocol tracker with reminders, calculations, and private data storage. (iPhone/iPad app by Mazen Dekhil.) - Source: https://appshunter.io/ios/app/peptides-os/id6762098045 (this page in markdown: same URL + `.md`) - Developer: [Mazen Dekhil](https://appshunter.io/developer/1693091331) - Category: Health & Fitness - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 17+ - Requires: iOS 16.6 · 130 MB - Languages: English, French, German, Italian, Lithuanian, Russian, Spanish - Released: 2026-05-23 - Data updated: 2026-08-23 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/peptides-os/id6762098045/reviews.md ## What is Peptides OS? PEPTIDE OS — your peptide protocol, organized. Track every compound, dose, and cycle in one calm, private place. PEPTIDE OS is built for people running serious peptide protocols who want clear records, smart reminders, and the confidence that their numbers are right. WHAT YOU CAN TRACK • Active compounds — vials, pens, oral, patches • Dose history with injection-site rotation • Vial stock, reconstitution dates, and 28-day expiry • Cycle progress, on/off weeks, and cycle number • Side effects logged per dose REMINDERS THAT MATCH REAL SCHEDULES PEPTIDE OS understands how peptide protocols actually run — not just "every day at 8am": • Daily or twice daily • Every other day (EOD) • 5-on / 2-off • Weekly • Custom days of the week Optional lead-time alerts, at-time alerts, and missed-dose follow-ups — each can be turned on or off independently. RECONSTITUTION CALCULATOR — FREE Enter your vial weight and BAC water amount and get concentration, draw units on any U-100 syringe (0.3 / 0.5 / 1 ml), doses per vial, and days of supply. The animated syringe shows exactly where to draw to. CYCLE PLANNING Set cycle duration and rest weeks. PEPTIDE OS pauses reminders during the rest period and resumes them when the next on-cycle begins — no manual toggling. LIBRARY & WEEKLY REPORTS Browse a curated library of common peptides for quick reference. Weekly reports summarize what you took, when, and where. PRIVATE BY DESIGN Your data stays on-device by default — locally encrypted, no account required to use the core app. PRO The free tier covers everyday tracking. Upgrade to Pro for unlimited compounds, the full peptide library, cycle planner, lab notes, and CSV export. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DISCLAIMER PEPTIDE OS is a personal record-keeping and reminder tool. It does not provide medical advice, prescriptions, or recommendations on which compounds to use or at what dose. Always consult a qualified healthcare professional before starting, changing, or stopping any protocol. ## Key features - Track compounds, doses, and cycles - Smart reminders for custom schedules - Vial stock and expiry tracking - Reconstitution calculator - Cycle planning with rest weeks - Weekly reports and peptide library ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Peptides OS Pro Monthly | $9.99 | per month | | Peptides OS Pro Annual | $49.99 | per year | ## Frequently asked questions about Peptides OS ### What can I track with Peptides OS? Peptides OS allows you to track active compounds, dose history with injection-site rotation, vial stock and expiry dates, cycle progress, and logged side effects per dose. ### How does Peptides OS handle reminders? It offers flexible reminders that match real schedules, including daily, twice daily, EOD, 5-on/2-off, weekly, and custom days. You can also set optional lead-time, at-time, and missed-dose alerts. ### Is the reconstitution calculator free to use in Peptides OS? Yes, the reconstitution calculator is a free feature. You can enter vial weight and BAC water to get concentration, draw units, doses per vial, and days of supply. ### Does Peptides OS offer cycle planning features? Yes, Peptides OS includes cycle planning where you can set cycle duration and rest weeks. Reminders automatically pause during rest periods and resume when the next on-cycle begins. ### How does Peptides OS ensure user privacy? Peptides OS is designed for privacy, with your data staying on-device by default. It is locally encrypted, and no account is required to use the core app's functionality. ### What features are included in the Peptides OS Pro upgrade? Upgrading to Pro unlocks unlimited compounds, the full peptide library, advanced cycle planner, lab notes, and CSV export functionality. The free tier covers everyday tracking. ### What is the update frequency for Peptides OS? The app was last updated on May 26, 2026, with version 0.0.2. This indicates recent development activity and ongoing support. ### What devices is Peptides OS available on? Peptides OS is available on iOS devices and has an age rating of 17+, suggesting it is designed for mature users. ## Version history (last 1 release) ### 0.0.2 — 2026-05-26 Performance improvements and minor bug fixes. ## More apps by Mazen Dekhil - [OneTake - Endless moments](https://appshunter.io/ios/app/onetake-endless-moments/id6478547755) - [Romeo IA](https://appshunter.io/ios/app/romeo-ia/id6657995107) - [ZAG - Spark The Feed](https://appshunter.io/ios/app/zag-spark-the-feed/id6740829694) - [RadioSwipe](https://appshunter.io/ios/app/radioswipe/id6744321251) - [KOMU – Your Space. Your People](https://appshunter.io/ios/app/komu-your-space-your-people/id6748309514) All apps by Mazen Dekhil: https://appshunter.io/developer/1693091331 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*