# Peptide Calculator App — Pepcalc Compound & Dosage

> Ad-free peptide dosage calculator for researchers and enthusiasts. (iPhone/iPad app by Wonkru.)

- Source: https://appshunter.io/ios/app/peptide-calculator-app/id6477393159 (this page in markdown: same URL + `.md`)
- Developer: [Wonkru](https://appshunter.io/developer/1690985768)
- Category: Medical, Utilities
- Price: Free with in-app purchases
- Rating: 4.40/5 from 538 App Store ratings · 50 written reviews indexed
- Age rating: 12+
- Requires: iOS 17.0 · 31 MB
- Languages: American English
- Released: 2024-02-21
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/peptide-calculator-app/id6477393159/reviews.md

## What is Peptide Calculator App?

Peptide Calculator App: Precision at Your Fingertips

Introducing the #1 Peptide Dosage Calculator, the ultimate ad-free PepCalc solution for researchers, scientists, and peptide enthusiasts. 

Key Features:
Comprehensive Syringe Options: Choose from U20, U30, U40, U100, and other syringe sizes for versatile calculation options, ensuring you have the precise tools for any scenario.
Save and Edit Calculations: Your calculations are saved automatically, allowing you to revisit and edit them at your convenience. Add notes to each calculation for better organisation and reference.
Peptide Tracking & History: Keep a clear record of your peptide usage and calculations over time with a built-in peptide tracker. View past entries in a chronological timeline, monitor changes in dosages or ratios, and maintain a consistent log for reference, comparison, and long-term planning
Peptide Reconstitution Guide: Our peptide reconstitution chart provides you with the estimated amount of water required for your peptides, simplifying the reconstitution process.
Mixing Ratios Simplified: Explore and determine the optimal mixing ratios for different peptide sequences with ease, thanks to our intuitive peptide mixing calculator.
Bacteriostatic Water Compatibility: Utilise bacteriostatic water calculations to perfect your mix, ensuring compatibility and precision in your experiments.
Peptide Library Resource: Access a rich peptide library as a resource for your research, enhancing your understanding and application of peptides.
Recalculation Option: Mistakes happen, but our app has you covered with the option to recalculate peptides if incorrect values are selected initially.
PDF Export: Print your results into a PDF for easy sharing, documentation, and record-keeping.
Dark and Light Modes: Choose between dark and light modes to suit your visual preference, making the app accessible at any time, under any lighting condition.

PepCalc is more than just a peptide calculator; it's a research companion that grows with you.

Disclaimer: The App is intended only for educational and laboratory purposes. It is not designed for use by medical professionals and should not be considered a medical guide or tool. Always consult with a local professional and follow your local regulations and guidelines.

Terms Of Service - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Refer to our privacy policy  for any other issues - https://peptidecalculatorapp.com/terms
Refer to our terms of service for any other issues - https://peptidecalculatorapp.com/terms/

Please note:
For using the premium features, a valid in-app purchase is necessary. The payment will be charged to your iTunes account once you confirm the subscription. The subscription gets automatically renewed. However, you can manage the auto-renewal option by using the account settings after making a purchase.

## Key features

- Syringe size options
- Save and edit calculations
- Peptide tracking and history
- Reconstitution guide
- Mixing ratio calculator
- PDF export

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Peptide Yearly Trial | $9.99 | per year |
| Peptide Calculator Monthly | $4.99 | per month |
| Peptide Calculator | $9.99 | per year |
| Pro Package | $4.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| LifeTime Plan | $29.99 | one-time |


## What do users think of Peptide Calculator App?

Overall sentiment: negative

**Pros**

- 👍 Easy to use
- 👍 Great for beginners
- 👍 Accurate calculations
- 👍 Helpful for researchers
- 👍 Saves calculations
- 👍 User-friendly interface
- 👍 Precise dosing
- 👍 Streamlines calculations
- 👍 Versatile syringe options
- 👍 Reconstitution guide

**Cons**

- 😞 Requires payment to use
- 😞 Misleading about being free
- 😞 Forced to review before use
- 😞 Confusing onboarding
- 😞 Poor color contrast
- 😞 Unclear vial dose information
- 😞 No free trial
- 😞 High yearly fee
- 😞 Expensive subscription
- 😞 Bait and switch tactics

**Commonly reported bugs**

- App won't open
- Desired dose option broken for MG
- Calculation between mcg and mg show different results
- Does not recognize 30 unit needle, only 100
- Draw result not shown after calculation

**Most requested features**

- Add option for mcg or mg for desired dose
- Include an information library on various peptides
- Improve contrast for users with vision problems
- Clarify wording for 'vial contains X doses'
- Allow users to try the app before reviewing/paying

## Recent user reviews (10 of 50)

All indexed reviews: https://appshunter.io/ios/app/peptide-calculator-app/id6477393159/reviews.md

### 1/5 — Useless

*2026-03-23, version 1.1.6*

You can’t use this app basically at all unless you pay for it. Very misleading

### 4/5 — Good but fix MG

*2026-02-19*

Please fix MG desired dose option, desired dosages work fine with MCG but broken when using MG. Thanks.

### 1/5 — Won’t Open

*2026-02-12, version 1.1.6*

Can’t even get passed the splash page. Zero stars.

### 1/5 — $10 to try

*2026-02-07*

Can’t do anything until you pay the $10 yearly fee. There’s not even a free trial. So I even can’t see what the app looks like in use before they demand non-refundable money? Hard pass.

### 1/5 — Wow why even have a free

*2026-02-05*

Instant review request, plus you can use the calculator all the way up until you need the calculation then. Buy premium! It’s a calculator why would need a premium

### 1/5 — Horrible

*2026-02-03, version 1.1.6*

No reason anyone should pay for an app like this.

### 1/5 — Calculation between mcg and mg show different results

*2026-01-21*

I just downloaded and paid for one month for this app. I plugged in some numbers, 10 mL water, 50 mg in vial and 5 mg desired dose, and got a completely incorrect and nutty answer. I went back and changed the 5 mg desired dose to 5000 mcg and got the correct answer. So, trusting this app to provide the correct answers may not be wise.

### 5/5 — Perfect app for Peptide Enthusiasts

*2025-12-15*

The new update adds scheduling features and an index of peptides with valuable information on each.  You can create your own schedules with existing peptides or any combination or reconstitution you choose.  I opened a support ticket on an issue I thought I found and they got back to me in minutes and explained how to resolve my issue, which was my lack of understanding how to use the app.  Worth the money!

### 3/5 — Can’t try till review

*2025-11-11*

Would love to give honest review but can’t get past this page to see app

### 5/5 — Easy to use

*2025-11-10*

Very easy to use and a life saviour

## Frequently asked questions about Peptide Calculator App

### What does the Peptide Calculator App do?

This app is designed to be a comprehensive peptide dosage calculator for researchers, scientists, and peptide enthusiasts. It helps users perform precise calculations for peptide reconstitution, mixing ratios, and dosage, offering a convenient tool for laboratory and research purposes.

### What are the key features of this peptide calculator?

Key features include a wide range of syringe size options, the ability to save and edit calculations with notes, a peptide tracker for monitoring usage history, a reconstitution guide, simplified mixing ratio calculations, and PDF export for documentation. It also offers dark and light modes for user preference.

### Is this app free to use?

The app is free to download and use for its basic functions. However, premium features require a valid in-app purchase. Payments are charged to your iTunes account upon confirmation of subscription, and auto-renewal can be managed in account settings.

### What kind of devices is this app compatible with?

Based on the provided information, the app is available on Apple devices, as indicated by references to iTunes accounts and Apple's legal terms for developers. Users can manage subscriptions through their account settings on these devices.

### What are the common use cases for the Peptide Calculator App?

Common use cases include calculating precise dosages for peptides, determining optimal mixing ratios for different peptide sequences, simplifying the peptide reconstitution process with bacteriostatic water, and tracking peptide usage over time for research and planning. It also serves as a resource with a peptide library.

## Version history (last 5 releases)

### 1.1.9 — 2026-05-08

Fix the calculation bug

### 1.1.8 — 2026-05-02

Added the fix for saved protocols
Fixed the blend calculations

### 1.1.7 — 2026-04-24

1. Fixed Mcg/Mg conversion
2. Add Blends for easy calculations
3. Edit & Recalculate option for pre saved calculations
4. Ability to override existing vials.
5. Minor bug fixes

### 1.1.6 — 2026-01-01

Bug fixing

### 1.1.5 — 2025-12-13

Added the schedule feature and ability to mix multiple peptides.

## Apps similar to Peptide Calculator App

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Injectly](https://appshunter.io/ios/app/injectly/id6745237189) | 4.9 (316) | Free | Medical |
| [Peptide Calculator: PepCalc](https://appshunter.io/ios/app/peptide-calculator-pepcalc/id6747501164) | 4.7 (378) | Free | Medical |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*