PeptideCalc.io is a peptide and GLP-1 calculator for reconstitution, syringe units, schedules, reminders, dose logs, and inventory tracking.
PeptideCalc.io helps you organize dose calculations and schedules for nearly any medication type - peptides, GLP-1s, steroids, premixed vials, injector pens, IU meds, oral and liquid medications and more. Enter vial details to compute draw estimates, set schedules and reminders, log doses, and track inventory on device with optional iCloud sync.
CALCULATORS & RECONSTITUTION
• Reconstitution calculator for custom vials (BAC/sterile water + peptide content -> draw estimate)
• Multi-peptide blends (up to 4 compounds) with proportional dose math and mixing ratios
• Premixed vial concentration calculator (Lipo-C/Lipo-B or steroids for example)
• GLP-1 presets include Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Rybelsus®, Retatrutide, and CagriSema
• Steroid presets include Testosterone (all esters), Nandrolone, Masteron, Primobolan, Trenbolone and more
• Injectable pens, single-use injectors, and oral medications (tablets + oral liquids)
• IU workflows for any IU medications such as HGH/hCG plus mg/mcg/ng/pg/IU/mL unit conversions
• Syringe types U-100, U-50, U-40, U-30, and 1-5 mL Luer-Lock options
• Visual syringe draw guide and syringe-unit input mode (U-100 insulin syringe units supported)
• Measure by syringe units and auto calculate water
PROTOCOLS & SCHEDULES
• Save protocols (dosing recipes) and reuse them quickly - duplicate Protocols and Schedules options.
• Inline edits with instant recalculation
• Favorites, search, and drag-and-drop ordering
• Create schedules from saved protocols with start/end dates
• Multiple dose times per day with flexible cadences: daily, specific weekdays, every N days/weeks, or monthly
• Advanced Titration ramps - start at a dose and ramp up/down by x amount to a final dose.
• on/off cycling windows - Schedule x weeks/months on/off for any medication
• Multiple schedules per protocol, color-coded and sortable
• Dose reminders, including optional time-sensitive notifications to break through iOS focus modes
CALENDAR - with LOGGING & ADHERENCE
• Beautiful Calendar view plus pending doses list
• Log scheduled or as-needed doses with injection site, method, notes, and timestamps
• Injection site tracking with custom sites and last-used hints
• Mark doses done, missed, or skipped
• Adherence metrics and streak tracking
• Log history with protocol filters
INVENTORY & SUPPLIES
• Track vials, pens, pills, and syringe supplies
• Medication remaining meter with manual adjustments and percent-remaining status
• Estimated runout based on schedules or log history
• Low-stock alerts and container details (size, strength, lot/batch, source, storage, dates)
• Syringe supply inventory with auto-decrement when a container runs out and optional auto refill medication remaining.
BACKUP, SYNC & SHARING
• Optional iCloud sync across devices
• Import full backups including protocols, schedules, logs, injection sites, and inventory
• Export protocols, schedules, and logs (JSON/CSV)
• Export dose history to CSV or PDF
• Optional iCloud sync across devices• Automatic local backups with restore points
PERSONALIZE
• Dark, light, system themes or custom color themes with accent and tint options.
• Locale-aware decimal input and haptic feedback
• "Party mode" option to celebrate your medication consistency with Glitter & accolades
• Use offline without an account; optional iCloud sync
PRIVACY
• We collect NO user data and deeply value privacy.
Trademarks: Ozempic®, Wegovy®, Mounjaro®, Zepbound®, and Rybelsus® are trademarks of their respective owners. Not affiliated.
Note: Retatrutide and CagriSema are investigational; presets are provided for reference only.
Important: PeptideCalc.io is for informational and educational purposes only. Always verify calculations and consult a qualified healthcare professional.
This is a fabulous tool for dosing calculations, protocols, and schedules. The reminder feature is great and very adaptable. Dosing can be edited ‘on the fly’ and the feature showing doses per vial/amount left per vial are great features. It has been very beneficial and the app is very ‘feature rich’ in my opinion. A huge plus - it is updated and improved often!
Great Calculator / Tracker
BigBonanza7
Really does a great job! When you get a few of these going it can be hard to keep track and the app is a lifesaver when you forget what you planned to do. Even if you are not using the scheduler it is nice to be able to look at each Pep to see what the dose / volume is supposed to be.
Developer Response
Thank you for the kind words and review BigBonanza! If you have feature requests or run into any issues please send feedback through the app and I’m happy to address them.
Great App!
Christineyroth
Great app! Very easy to use. Have tried a lot of the other peptide apps and this one has been the best by far. Simple way to organize and calculate peptides efficiently within the app. Layout is clear and intuitive. Support is top notch and very quick with their responses.
Love it
JGeronimo17
Very EXCELLENT peptide calculator. $5. One time fee. Completely worth it. Get itUpdate: some nice changes have been made that I see, but i haven’t tried them yet, because i have other tracking I am used toIdk, I need to make time to check it out
- Widgets! Add a small or medium widget to Home + Lock Screen with upcoming dose details and quick tap-to-log actions.
- Search for Active Schedules and Calendar doses, plus a cleaner, easier-to-use Schedule tab.
- Log History upgrades: status/date filters, faster browsing, cleaner cards, and protocol-scoped CSV/PDF export.
- Inventory improvements: Low/Critical quick filters, faster Add Supply access, and a unified “Adjust Remaining” flow.
- Smarter Log Dose: remembers preferred unit per protocol and improves default unit behavior.
- New protocol duplication flow (with custom naming) and quicker schedule creation from the Schedule tab.
- “Dose Method” is now Administration Type, with improved site handling and better support for different administration routes like "nasal" and "Intra-muscular".
- Broad performance and reliability improvements across reminders, widget behavior, backups, sync, and schedule/logging flows.
Version 2.5.0
The developer, Wild Monkey Labs, 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 indicated that this app supports the following accessibility features. Learn More
Supported Features
Dark Interface
Information
Seller
Wild Monkey Labs, LLC
Size
24.4 MB
Category
Health & Fitness
Compatibility
Requires iOS 18.6 or later.
iPhone Requires iOS 18.6 or later.
iPad Requires iPadOS 18.6 or later.
Mac Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.