Best Free Peptide Calculator Apps

234+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

Peptide Calculator is the household name in free peptide calculator, but it's far from the only option. We track 234+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Free Peptide Calculator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Peptide Calculator: PepCalcPeptide Calculator: PepCalcFree5.0★ (9)NoNoJul 2026
2InnerGlow Peptides CalculatorInnerGlow Peptides CalculatorFreeNoNoMay 2026
3Peptide Calculator AppPeptide Calculator AppFree4.4★ (469)NoYesJul 2026
4Peptide Calculator: PepFlowPeptide Calculator: PepFlowFree4.8★ (278)NoYesJul 2026
5Peptide Calculator & DosagePeptide Calculator & DosageFree4.8★ (90)NoNoJul 2026
6Peptides CalculatorPeptides CalculatorFree was $2.994.3★ (163)NoYesJul 2026
7Peptide Calculator: DoseRxPeptide Calculator: DoseRxFree4.8★ (31)NoNoJul 2026
8PeptidePal – Peptide TrackerPeptidePal – Peptide TrackerFree4.7★ (2.6K)YesYesJul 2026

Top Picks for Free Peptide Calculator

Peptide Calculator: PepCalc#1

Peptide Calculator: PepCalc by David Dzeveckij

Dosage & Reconstitution Tool
Editor's Choice
🏥 Medical
5.0(9 ratings)
Free
Peptide Calculator: PepCalc screenshot 1
Peptide Calculator: PepCalc screenshot 2
Peptide Calculator: PepCalc screenshot 3

This tool simplifies peptide dosage and reconstitution calculations. It accurately determines injection volumes and the correct amount of water for mixing, converting results to insulin syringe units. Designed for researchers and wellness enthusiasts, it ensures precise and confident peptide administration.

Peptide Calculator App#3

Peptide Calculator App by Wonkru Media OPC Private Limited

Pepcalc Compound & Dosage
Worth Considering
🏥 Medical
4.4😞(469 ratings)
FreeIn-App Purchases
Peptide Calculator App screenshot 1
Peptide Calculator App screenshot 2
Peptide Calculator App screenshot 3
Peptide Calculator App screenshot 4
Peptide Calculator App screenshot 5

This app serves as a comprehensive peptide dosage calculator for researchers and enthusiasts. It offers features like saving calculations, tracking peptide usage, and a reconstitution guide. Users can also explore mixing ratios and export results to PDF.

What We Love

  • 👍 Easy to use
  • 👍 Great for beginners
  • 👍 Accurate calculations
  • 👍 Helpful for researchers

Room to Improve

  • 😞 Requires payment to use
  • 😞 Misleading about being free
  • 😞 Forced to review before use

More Free Peptide Calculator apps to explore

4
Peptide Calculator: PepFlow
Peptide Calculator: PepFlow
Peptide Calculator: PepFlow
Reconstitution, mixing & dose
Free

Calculate peptide dosages and reconstitution accurately and quickly. Track your injections with timely reminders and live activities. Save custom formulas and sync across devices for seamless management.

Peptide dosage calculationReconstitution guidanceInjection time tracking
💪 Health & Fitness
(278)
free with in-app purchases
5
Peptide Calculator & Dosage
Peptide Calculator & Dosage
Peptide Calculator & Dosage
Peptide Dose Calculator
Free

Easily calculate peptide dosages with this straightforward tool. It helps determine reconstitution ratios and injection volumes based on your inputs. Manage your peptide inventory, track your progress, and review past dosing with helpful features.

Peptide dosage calculationReconstitution ratio determinationInjection volume calculation
💪 Health & Fitness
(90)
freemium
6
Peptides Calculator
Peptides Calculator
Peptides Calculator
Reconstitution Calculator
Free
$2.99 | 100% OFF

This app helps users log, organize, and manage their peptide preparation process. It offers features for calculating reconstitution details, saving vial records, and accessing educational content. An optional subscription unlocks unlimited entries, enhanced tracking, and multi-device sync.

Log and calculate reconstitution detailsSave and organize vial recordsBrowse peptide reference library
💪 Health & Fitness
(163)
freemium
7
Peptide Calculator: DoseRx
Peptide Calculator: DoseRx
Peptide Calculator: DoseRx
Dose & Reconstitution Tracker
Free

This app quickly calculates peptide draw volumes and insulin syringe units. It works offline, requiring no account, and provides clear results for various vial sizes and water amounts. It's designed for informational purposes only, with a strong disclaimer to consult medical professionals.

Offline calculationDraw volume calculationInsulin unit calculation
🏥 Medical
(31)
free
8
PeptidePal – Peptide Tracker
PeptidePal – Peptide Tracker
PeptidePal – Peptide Tracker
Peptide Dose Calculator & Log
Free

This app helps users track GLP-1 medications, research peptides, and TRT. It offers a protocol builder, a comprehensive peptide library, and a reconstitution calculator with visual aids. It also includes supply alerts and injection site rotation guidance.

GLP-1 shot trackingResearch peptide trackingTRT tracking
💪 Health & Fitness
(2.6K)
free with in-app purchases
9
Exploring Peptides
Exploring Peptides
Exploring Peptides
Peptide Dosage Calculator
Free

This application simplifies the calculation of precise peptide dosages for researchers and medical professionals. It allows users to input syringe type, peptide amount, and water volume to determine units to draw and total doses. Results can be saved, emailed, and accessed via pre-calculated templates.

Peptide dosage calculationSave and email resultsPre-calculated and custom templates
📚 Education
(22)
free
10
Peptide Tracker & Calculator
Peptide Tracker & Calculator
Peptide Tracker & Calculator
Your Private Peptide Log
Free

This app helps you meticulously track and calculate peptide dosages, inventory, and injection sites. It provides smart alerts for low stock and detailed logs of your usage history for research, fitness, or therapeutic protocols. Your data is stored securely and privately on your device.

Comprehensive peptide inventory managementPrecise dosing log and calculation supportIntelligent injection site rotation tracking
💪 Health & Fitness
(430)
free with in-app purchases
11
Peptide Tracker - PeptideKit
Peptide Tracker - PeptideKit
Peptide Tracker - PeptideKit
For Mounjaro, Wegovy, Zepbound
Free

This app helps users manage their peptide therapy journey with smart protocol management, progress tracking, and detailed journaling. It offers intelligent analytics, a built-in AI chat assistant, and a user-focused design for optimal organization and motivation.

Customizable peptide protocolsAutomatic shot generationIntelligent reminder system
💪 Health & Fitness
(274)
subscription
12
CalcPep - Peptide Calculator
CalcPep - Peptide Calculator
CalcPep - Peptide Calculator
Dosing & Reconstitution Math
Free
💪 Health & Fitness
(0)
13
Peptide Tracker Log & Reminder
Peptide Tracker Log & Reminder
Peptide Tracker Log & Reminder
Track doses, vials, and sites
Free

Organize your peptide protocols, track doses, manage vial inventory, and monitor weight trends. Includes built-in calculators and optional reminders to ensure consistency. Access educational content and a helpful assistant for general information.

Protocol creation with custom schedulesDose logging with notes and site trackingVial inventory management
💪 Health & Fitness
(937)
free
14
PepCalc: Peptide Calculator
PepCalc: Peptide Calculator
PepCalc: Peptide Calculator
Mix & reconstitution tracker
$9.99
$11.99 | 17% OFF

This app simplifies complex peptide reconstitution calculations for researchers and scientists. It offers instant results for reconstitution ratios, supports multi-peptide blends, and saves custom protocols for efficient lab work. Designed for educational and research settings, it eliminates guesswork in preparing solutions.

Flexible input for amounts, volume, units, and target.Preset and custom unit scales.Multi-peptide blend calculations.
💪 Health & Fitness
(946)
paid
15
Peptide Tracker - PepSync
Peptide Tracker - PepSync
Peptide Tracker - PepSync
GLP 1 Dosage & Reconstitution
Free

This app simplifies peptide use by calculating accurate dosages, tracking injections, and setting reminders for consistency. Manage multiple peptides and review your history with a clear and reliable interface.

Smart peptide calculator for accurate dosingLog and track peptide injectionsSet reminders for consistency
💪 Health & Fitness
(19)
free with in-app purchases
16
Peptide Library and Tracker
Peptide Library and Tracker
Peptide Library and Tracker
Track, Log & Compare Peptides
Free

This app serves as a comprehensive guide and lab assistant for peptide research. It offers a detailed peptide library, dose calculation tools, and advanced tracking features for logging, inventory management, and protocol adherence. Users can also access educational content and community Q&A to enhance their research workflow.

Comprehensive Peptide Library & DatabaseAdvanced Peptide Dose CalculatorSmart Tracking & Calendar View
💪 Health & Fitness
(16)
free
17
The Peptide App: Tracker
The Peptide App: Tracker
The Peptide App: Tracker
Reconstitution Calculator
Free

Organize and track your peptide protocols with a comprehensive library, a reconstitution calculator, and personalized dose reminders. Log your adherence, review your dosing history, and create custom protocols tailored to your specific needs.

Protocol library with dosing schedulesReconstitution calculator for bacteriostatic waterDose tracking and personalized reminders
💪 Health & Fitness
(49)
free
18
Calculator #
Calculator #
Calculator #
Scientific Calculator
Free

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

Math Photos SolverHandwriting RecognitionAI Math Problem Solver
🔧 Utilities
(36K)
free with in-app purchases
19
Peptide Tracker Calculator
Peptide Tracker Calculator
Peptide Tracker Calculator
GLP-1, TRT, Vial & Dose Log
$4.99
$5.99 | 17% OFF

This app helps manage peptide, GLP-1, and TRT medications. It offers calculators for reconstitution, dose scheduling, reminders, and detailed logging. Track inventory, monitor adherence, and visualize health insights with trend charts and medication level analysis.

Reconstitution and multi-peptide blend calculatorsGLP-1 and TRT medication presetsCustomizable dose schedules and reminders
💪 Health & Fitness
(166)
free
20
Calculate by QxMD
Calculate by QxMD
Calculate by QxMD
Medical Calculator
Free

This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.

Over 200 medical calculatorsClinical decision support toolsCardiology, internal medicine, and more
🏥 Medical
(5.1K)
free with in-app purchases

FAQ about Free Peptide Calculator

What are the best free peptide calculator apps for iPhone?
Peptide Calculator: PepCalc tops our free peptide calculator apps ranking as of July 2026, with a 5.0-star average from 9 App Store ratings, and it's free to download.
Peptide Calculator: PepCalc has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 234+ free peptide calculator apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
PepCalc is a dedicated tool for calculating accurate peptide dosages and reconstitution volumes. It helps users determine precise injection amounts and the correct amount of water for mixing, ensuring confidence in peptide administration.
To calculate dosage, you input the desired dose (mcg or mg), the total peptide amount in the vial, and the reconstitution volume. PepCalc then instantly provides the result in both mL and insulin syringe units.

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