Comparison

PepStack vs Prof. Peptide Protocol Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PepStack

Features
Read full description

PepStack is a reconstitution and dosing-math calculator and protocol scheduler for peptide researchers. CALCULATE WITH CONFIDENCE • Exact BAC-water volume, concentration, syringe units, and doses-per-vial • Supports U-100 / U-50 / U-40 / U-30 insulin syringes • Step-by-step reconstitution guide PLAN YOUR PROTOCOL • Build a weekly schedule and sync dose reminders • Log doses, track streaks, rotate injection sites • Reference library of common research peptides STAY ORGANIZED • Vial inventory with expiry and low-stock alerts • Optional Apple Health sync for weight & body-fat trends • Wellness journal and progress insights PepStack is an educational calculator. It is not medical advice and does not sell or supply any substance. Always consult a qualified professional. PepStack Pro is an auto-renewable subscription (monthly or annual). Payment is charged to your Apple ID; it auto-renews unless canceled at least 24 hours before the period ends. Manage or cancel in Settings. Pro unlocks unlimited protocols, dose logging, AI insights, and PDF export. Terms of Use (EULA): https://pepstack.co/terms Privacy Policy: https://pepstack.co/privacy

About

Prof. Peptide Protocol Tracker

Track peptide and GLP-1 doses, calculate reconstitutions, and manage complex protocols. Access a compound library, visualize estimated levels, and review research summaries. Your data remains private and on your device.

Highlights
  • Dose logging and reminders
  • Reconstitution calculator
  • 60+ compound library
  • Full protocol and stack support
  • Estimated compound levels visualization
  • AI research assistant
  • Results and trends tracking
Features
Read full description

Prof. Peptide — All-in-One Peptide Tracker The all-in-one app for tracking peptides and GLP-1s. Log your doses, calculate reconstitution, run full protocols and stacks, and keep everything organized in one place — no more spreadsheets or scattered notes. Built for researchers, athletes, and anyone managing a serious peptide protocol. FEATURES Dose Logging & Reminders — Log every dose and get reminders so you never miss one. Track daily, weekly, cyclical, and custom schedules. Reconstitution Calculator — Take the guesswork out of the math. Enter vial size, BAC water, and desired dose to get exactly how much to draw. 60+ Compound Library — Peptides, GLP-1s, and supplements, searchable by name or brand (Wegovy, Ozempic, Mounjaro, Zepbound, and more). Blends and stacks included. Full Protocol & Stack Support — Run multiple compounds on their own schedules. Manage on/off cycles with clear timelines. Estimated Levels — Visualize estimated compound levels over time based on published half-life data, so you can see where you are in your dosing window. AI Research Assistant — Ask questions about peptide and supplement research, drawn from the research literature. Not medical or dosing advice. Results & Trends — Track weight, body composition, and other measurements over time with clean charts. Curated Research Hub — Reference summaries and vendor testing transparency, all in one place. Private by Design — Your data stays on your device. Export and import your own backups anytime. Prof. Peptide is for informational and educational purposes only. Nothing in this app constitutes medical advice.

Screenshots

PepStack4 screens
Prof. Peptide Protocol Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Prof. Peptide Protocol Tracker at none against PepStack's 2. Prof. Peptide Protocol Tracker also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PepStack sells 2 in-app purchases, starting at $4.99 per month. Prof. Peptide Protocol Tracker asks for nothing beyond the download.

Scorecard2 real differences · 8 level
PepStack versus Prof. Peptide Protocol Tracker: the parameters behind the verdict, then further details
ParameterPepStackProf. Peptide Protocol Tracker
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size9 MB33 MB
Age rating4+12+
DeveloperDaniel Son, LLCStrength Cycle Studios, LLC

In-app purchases

2 purchases

PepStack

Subscriptions2
  • PepStack Pro Monthly$4.991 Month
  • PepStack Pro Annual7 Days trial$29.991 Year
None

Prof. Peptide Protocol Tracker

No in-app purchases

Questions

Is PepStack free?
PepStack is free to download, with in-app purchases available.
Is Prof. Peptide Protocol Tracker free?
Prof. Peptide Protocol Tracker is free to download, with no in-app purchases.
Do PepStack or Prof. Peptide Protocol Tracker have ads?
Neither PepStack nor Prof. Peptide Protocol Tracker shows ads.

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