Comparison

Peptide Calculator + vs PeptideCore

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

Head to head
About

Peptide Calculator +

This app simplifies peptide dosing, reconstitution, and mixing. It calculates exact syringe draw amounts, helps blend multiple peptides, and determines precise dilution volumes for your protocol.

Highlights
  • Peptide dose calculator
  • Syringe draw amount calculation
  • Blend calculator for multiple peptides
  • Reconstitution calculator for dilution
  • Support for multiple syringe sizes
  • Intuitive interface
Features
Read full description

Peptide Calculator + takes the guesswork out of peptide dosing, reconstitution, and mixing — so you can focus on your protocol, not the math. Dose Calculator Enter your vial size, bacteriostatic water volume, and desired dose to instantly see exactly how much to draw in your syringe. The app displays units, volume, concentration, and total draws per vial — everything you need at a glance. Supports multiple syringe sizes for precise measurements. Blend Calculator Need to combine multiple peptides like BPC-157 and GLP-1 agonists in a single injection? The blend calculator shows per-peptide and combined draw amounts, making multi-peptide syringes straightforward and accurate. Reconstitution Calculator Not sure how much bacteriostatic water to add to your vial? Enter your desired units per draw and the calculator works in reverse — telling you the exact dilution volume needed for your target concentration. Whether you're working with semaglutide, tirzepatide, or any other peptide, Peptide Calculator + handles the dosage math so you don't have to. Features • Peptide dose calculator with syringe draw amounts • Blend calculator for mixing multiple peptides • Reconstitution calculator for precise dilution • Support for multiple syringe sizes • Clean, intuitive interface Accurate dosing, simple math — built for your protocol. Terms of Use: https://titanium.dev/apps/terms

About

PeptideCore

Features
Read full description

The most complete protocol tracker for serious GLP-1 and peptide users. Track Ozempic®, Wegovy®, Mounjaro®, Zepbound® — or any peptide stack — with pharmacokinetic curves, a stack-interaction checker, and a citation-backed library no other tracker offers. PeptideCore is the private, on-device companion for GLP-1 patients, peptide stackers, microdosers, and biohackers who want a clean visual record of every shot, dose, and side effect. No ads. No data sold. No bro-science. Built by an iOS engineer who tracks their own protocol. FREE TO USE Log every dose, rotate injection sites, run the reconstitution calculator, and browse the peptide library — free, no account required. PeptideCore Pro is optional. WHAT YOU GET WITH PRO • Estimated medication-level curve. See how semaglutide, tirzepatide, retatrutide, or any peptide with a known half-life decays over the past week — with peak and trough markers. • Visual injection-site map. Front and back body view with 14 sites. Each site color-codes by days since last use so you rotate intelligently. • Dose-coded weight chart. Your weight line is colored by current dose tier so the weight loss response to your Mounjaro® or Wegovy® titration is visible at a glance. • Reconstitution calculator. Forward (dose → units), reverse (target draw → BAC water), and multi-peptide blend modes. Supports U-100, U-40, and tuberculin syringes. • Curated peptide library. 25+ entries with typical dose, half-life, route, and a tap-through PubMed citation. Covers BPC-157, TB-500, CJC-1295, Ipamorelin, MOTS-c, GHK-Cu, PT-141, Tesamorelin, and more. • Stack interaction checker. Flags overlap between active compounds with severity grading and PubMed-linked citations. • Inventory tracking. Vial-by-vial stock with expiry dates, reorder reminders, lot numbers, and cost per dose. • Live Activity countdown. Your next shot lives on your lock screen and Dynamic Island. • Apple Health integration. Pulls weight, HRV, sleep, and resting heart rate to correlate with your protocol. • Private on-device AI. Apple Intelligence flags adherence trends, symptom patterns, and site rotation balance — without sending your data anywhere. • Share card export. Render a branded progress card to celebrate weekly wins. SUBSCRIPTION PRICING • Pro Monthly — $12.99/month • Pro Yearly — $79.99/year (save 48%) Payment is charged to your Apple ID at purchase confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. PRIVACY-FIRST Your protocol data is stored locally and synced through your private iCloud account. We never sell, share, or send your data to ad networks. Apple Health is read-only. WHO IT IS FOR GLP-1 patients on Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Rybelsus®, Saxenda®. Researchers logging BPC-157, TB-500, CJC-1295, Ipamorelin, Tesamorelin, MOTS-c. Microdosers tracking sub-clinical doses. Anyone who wants their protocol on their own device. DISCLAIMER PeptideCore is for tracking and education only. It does not diagnose, treat, or replace medical advice. Always work with a licensed clinician on dosing decisions. All product names, logos, and brands are property of their respective owners. PeptideCore is an independent tracking tool and is not affiliated with, endorsed by, or sponsored by Novo Nordisk, Eli Lilly, or any pharmaceutical manufacturer. LEGAL Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gist.github.com/NicolasR27/04208c6bb1bc0e7d037aa792247f5bcc

Screenshots

Peptide Calculator +4 screens
PeptideCore4 screens

Verdict

The call

The clearest difference is update cadence: Peptide Calculator + at every 8 days against PeptideCore's every 3 weeks. Peptide Calculator + also leads on iOS requirement (15.1 vs 26.4). On price, ads, in-app purchases 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. Peptide Calculator + sells 5 in-app purchases, starting at $3.99 per 7 days and PeptideCore sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Peptide Calculator + ships an update every 8 days, PeptideCore every 3 weeks. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
Peptide Calculator + versus PeptideCore: the parameters behind the verdict, then further details
ParameterPeptide Calculator +PeptideCore
PriceFreeFree
Rating4.7 (58 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings58 — better—
Update frequencyEvery 8 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better26.4
Further details — not scored
Size124 MB13 MB
Age rating4+12+
DeveloperJoseph SteinNicolas Rios

In-app purchases

5 purchases

Peptide Calculator +

Subscriptions4
  • Weekly$3.997 Days
  • Monthly14 Days trial$9.991 Month
  • Yearly$11.991 Year
Show 1 more
  • Yearly$19.991 Year
One-time1
  • Lifetime$29.99
2 purchases

PeptideCore

Subscriptions2
  • Pro Monthly$12.991 Month
  • Pro Yearly$79.991 Year

Questions

Is Peptide Calculator + free?
Peptide Calculator + is free to download, with in-app purchases available.
Is PeptideCore free?
PeptideCore is free to download, with in-app purchases available.
Do Peptide Calculator + or PeptideCore have ads?
Neither Peptide Calculator + nor PeptideCore shows ads.
Which is updated more often, Peptide Calculator + or PeptideCore?
Peptide Calculator + ships an update every 8 days, and PeptideCore every 3 weeks. Most recently, Peptide Calculator + was updated on October 10, 2026 and PeptideCore on October 11, 2026.

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