# PepSync: Peptide Calculator — Peptide Calculator & Logger > Peptide Calculator & Logger (iPhone/iPad app by Rapid Sync IT LLC.) - Source: https://appshunter.io/ios/app/pepsync-peptide-calculator/id6762025755 (this page in markdown: same URL + `.md`) - Developer: [Rapid Sync IT LLC](https://appshunter.io/developer/1887127351) - Category: Health & Fitness - Price: Free with in-app purchases - Age rating: 17+ - Requires: iOS 16.4 · 39 MB - Languages: American English - Released: 2026-04-17 - Data updated: 2026-08-20 - User reviews in markdown: https://appshunter.io/ios/app/pepsync-peptide-calculator/id6762025755/reviews.md ## What is PepSync? Know exactly what to draw. PepSync turns the numbers on your vial label amount, water, syringe into one clear answer: the units to draw to. Then it keeps the books: what's left in every vial, when each one should be discarded, and the schedule you built for yourself. No spreadsheet. No napkin math. No squinting at tick marks. ALL-NEW IN 2.0 Version 2 is a complete redesign a ground-up UI overhaul built around one idea: the answer comes first. A cleaner dark interface, a streamlined four-tab layout with a quick-add button always under your thumb, and every number you'd act on rendered in crisp monospace. Faster to read at 7 AM, faster to log, easier to trust. THE CALCULATOR - Answer-first: the draw-to units stay pinned while you adjust inputs - Clean-mark check: if your numbers land between syringe marks, PepSync suggests the water amount that fixes it - Show Math: every step of the calculation in plain English — verify anything - Blend support: multi-component vials with per-draw breakdowns - Reverse calc, water calc, unit converter (mcg / mg / mL / IU / units), and titration tools VIALS THAT COUNT THEMSELVES - Log an entry and the vial's remaining count ticks down automatically - Discard countdown runs from your reconstitution date - Projected-empty date tells you in advance whether you'll finish a vial before its discard day - Multiple vials of the same compound? One wears the "in use" badge logging just works - Optional cost tracking per vial SCHEDULES YOU AUTHOR - Build simple daily plans or staged ones — step changes, on/off phases, multiple compounds — entirely from your own entries - "Up next" shows what you scheduled, when, with your rotation site - Missed an entry? It's recorded honestly. Plans never shift and never double up - Optional reminders that respect your privacy: lock-screen text is discreet by default YOURS ALONE - Local-first by architecture: no account, no server, no analytics, no cloud copy - Your data lives in a database on your iPhone — the only way it leaves is you tapping Export - Full backup and restore: one file, readable, yours - Filterable history with CSV export ONE-TIME PURCHASE Pay once, own it. No subscription. Restore anytime on your Apple ID. PepSync is a calculation and record-keeping utility. All compounds, amounts, and schedules are entered by you; the app performs unit math on your numbers and organizes your records. It does not provide dosing recommendations, protocols, or medical advice. For research and educational purposes only. Consult a qualified professional for health decisions. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlock PepSync | $19.99 | one-time | ## Version history (last 4 releases) ### v2.1 — 2026-08-13 PepSync 2.0 is a ground-up rebuild: - Answer-first calculator with clean-mark suggestions and Show Math - Vial inventory with automatic counts and discard tracking - User-authored plans with stages, phases, and discreet reminders - Full history, filters, and CSV export - Backup & restore and automatic migration of your v1 data - Local-first: no account, no cloud, no subscription Questions or ideas? Support link is on the store page. ### 1.4 — 2026-05-13 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 ### 1.2.1 — 2026-04-22 - Performance and stability improvements, including an enhanced in-app purchase experience for a smoother unlock flow. ### 1.2.0 — 2026-04-17 No release notes. ## Apps similar to PepSync | App | Rating | Price | Category | | --- | --- | --- | --- | | [Peptides Calculator](https://appshunter.io/ios/app/peptides-calculator/id6744431355) | 4.3 (166) | Free | Health & Fitness | | [Peptide Calculator & Dosage](https://appshunter.io/ios/app/peptide-calculator-and-dosage/id6758891178) | 4.8 (121) | Free | Health & Fitness | | [Dose: Peptide Tracker](https://appshunter.io/ios/app/dose-peptide-tracker/id6753960534) | 4.7 (82) | Free | Health & Fitness | | [Peptide Tracker & Calculator](https://appshunter.io/ios/app/peptide-tracker-and-calculator/id6744902384) | 4.8 (480) | Free | Health & Fitness | | [Peptide Calculator: PepFlow](https://appshunter.io/ios/app/peptide-calculator-pepflow/id6740525224) | 4.8 (359) | Free | Health & Fitness | | [PeptIQ: Peptide Tracker](https://appshunter.io/ios/app/peptiq-peptide-tracker/id6757513095) | 4.7 (431) | Free | Health & Fitness | ## More apps by Rapid Sync IT LLC - [WealthForge: Offline Finance](https://appshunter.io/ios/app/wealthforge-offline-finance/id6760981201) - [RevLog: Vehicle Service Log](https://appshunter.io/ios/app/revlog-vehicle-service-log/id6762025264) - [FlowLock: Focus Music](https://appshunter.io/ios/app/flowlock-focus-music/id6762025657) - [MonkLock](https://appshunter.io/ios/app/monklock/id6769201782) All apps by Rapid Sync IT LLC: https://appshunter.io/developer/1887127351 ## Related topics [peptide dose calculator](https://appshunter.io/ios/topics/peptide-dose-calculator) --- *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 2026-08-20.*