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PepCalc: Peptide Calculator

PepCalc: Peptide Calculator

Dose & reconstitution tracker

947 ratings
95 reviews
#10 in paid Health & Fitness
🔧 Utilities
💪 Health & Fitness
$11.99 $9.99

Lowest price: $3.99 2 years ago (-150%)

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Price history

Details

  • Released
  • Updated
  • July 22, 2020
  • June 25, 2026

Features

Developer

Awesome Labs LLC
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About

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.
✓Smart unit conversions (mcg, mg, g).
✓Save and recall custom protocols.
✓Light and dark mode themes.
Show original description

What users say

Summarized from real user reviews of PepCalc. Based on 947 reviews and a 4.8/5 average, it highlights the 6 positives and 4 negatives reviewers mention most about this Health & Fitness app.

Positive things

  • 🚀Easy to use
  • 🚀Simplified peptide calculations
  • 🚀Saved protocols for quick access
  • 🚀Visually helpful with syringe display
  • 👍Beginner-friendly
  • 👍Developer responsive to feedback

Negative things

  • 🐛Calculations not always accurate
  • 🐛App freezes or crashes
  • 🔍Limited options (e.g. no mg dosage)
  • 💰Expensive for limited features compared to free alternatives
See all reviews

What's New in PepCalc

56.2

June 25, 2026

New! Create and share beautiful protocol images directly via social media, chat, and email that other PepCalc users can import directly via link or QR code.

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Charts

Top Paid

📊 10

Health & Fitness

The app has maintained its position at 10 recently.

Last updated on August 8, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Just what I needed

Very easy to use and understand. Even calculates water to use. REQUEST: A cycle calendar and dose log would be a wonderful edition. That way I could have this as my one stop pep app. Thanks!
Texas Toast is ToughTexas Toast is Tough

With the price

I tried many of the “free” apps. They were super annoying trying to force me to subscribe. This app after a one time payment and does everything i want. Thanks!
Gina0011Gina0011

Actual Customer Support

I thought I as charged twice but I wasn’t. I reached out via email and Someone Got Back to me!!
jenmikojenmiko

Update-bugs fixed. Was working great, but now there's bugs

Update- reached out to Support and they fixed the app in a matter of days.
All of a sudden, when I edited then saved the calculation to a saved protocol, it deleted all the notes that were there previously, which had not occurred in the past. It's also not letting me edit notes in saved protocols.
aimeeharaimeehar

Response from developer

Hi Aimee, Sorry about this! Note loss is the worst kind of bug to ship and I'm sorry you got hit by it. The new "rich text" notes functionality added in the last release caused a couple issues. I tracked down what was happening and the fix is already pushed. The "can't edit notes" issue is also fixed. When opening the app it should update automatically. To ensure you have the new version check the bottom of the More tab for v55.5.2 Thanks for taking the time to flag this. I'm hopeful you'll also take the time to update your star rating if you see fit. Thanks! Jeremy

Best App!

Best app to use for calculating protocols! Customer support is wonderful! I had an issue with the app and they immediately got back to me through email. Fixed the issue and check in with me to make sure I was up to date and not was working well. I use this app so much and appreciate the help I got from them! Love this app!
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Jayymo1342Jayymo1342

Response from developer

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See 90 more reviews

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User experience

🐞

Reported Bugs

2 issues

Decimal point input not working

Bug

Desired dosage unable to be edited beyond first peptide

Bug
✨

Requested Features

4 requests

Option to change dosage units (mcg to mg)

Feature

Ability to log usage history and cycle tracking

Feature

More peptide options and information

Feature

Improved interface scaling for different screen sizes

Feature

FAQ

What does PepCalc do?

PepCalc is a mathematical utility designed to help laboratory researchers and scientists solve complex peptide reconstitution ratios. It provides instant results for per unit or tick mark calculations, supports multi-peptide blends, and allows users to save their custom protocols for repeatable calculations.

What are the key features of PepCalc?

Key features include flexible input options for peptide amounts, water volume, units, and target amounts. It offers preset and custom unit scales, supports unlimited multi-peptide blends in a single calculation, and provides smart unit conversions between mcg, mg, and g. Users can also save their favorite calculations as named protocols for quick recall.

Is PepCalc free to use?

Based on the provided information, PepCalc is a paid application. It does not have in-app purchases or ads, indicating a one-time purchase model for full functionality.

What kind of devices is PepCalc compatible with?

The description does not specify exact compatibility details like operating system versions. However, it is presented as a mobile application, suggesting it is designed for smartphones and tablets running common mobile operating systems.

Who is PepCalc intended for?

PepCalc is specifically designed for laboratory researchers and scientists. It is also suitable for educational settings where students are learning about or performing peptide reconstitution. The app is intended for research and educational purposes only and is not for medical use.