# Peptide Calculator + vs Peptide Protocol

The clearest difference is monetization model: Peptide Calculator + at freemium against Peptide Protocol's subscription. Peptide Calculator + also leads on ratings volume (58 vs 12) and iOS requirement (15.1 vs 18.0). Peptide Protocol's advantage is review sentiment (100% vs 75%) and rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Peptide Calculator + sells 5 in-app purchases, starting at $3.99 per 7 days and Peptide Protocol sells 7 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Peptide Protocol holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 58 and 12 respectively. Written reviews point the same way: 75% of Peptide Calculator +'s written reviews are positive against 100% of Peptide Protocol's.

Peptide Calculator + ships an update every 8 days, Peptide Protocol every 5 days. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Peptide Calculator + | Peptide Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (58 ratings)](https://appshunter.io/ios/app/peptide-calculator-plus/id6759960358/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/peptide-protocol-dose-tracker/id6762055081/reviews)** |
| Number of ratings | **58** | 12 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 5 days** |
| Monetization | **Freemium** | Subscription |
| Size | 124 MB | 94 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Joseph Stein](https://appshunter.io/developer/535382667) | [Ludovic PUAUD](https://appshunter.io/developer/1874004900) |

## What reviewers say

### Peptide Calculator +

[App page](https://appshunter.io/ios/app/peptide-calculator-plus/id6759960358)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $11.99 | per year |
| Yearly | $19.99 | per year |
| Lifetime | $29.99 | one-time |


### Peptide Protocol

[App page](https://appshunter.io/ios/app/peptide-protocol-dose-tracker/id6762055081)

This app helps users track peptide doses, manage vial inventory, and monitor weekly insights like energy, sleep, and mood. It offers a reconstitution calculator and features for biohackers and longevity enthusiasts, with local-first data storage for privacy.

**Highlights:** Dose logging for peptides, Reconstitution calculation helper, Vial inventory with refill reminders, Weekly insight charts (energy, sleep, mood, weight), Protocol pausing and auto-resuming, Injection site rotation, Side-effect pattern review, Local-first data storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Protocol Pro | $4.99 | per 7 days |
| Peptide Protocol Pro | $4.99 | per 7 days |
| Peptide Protocol Pro | $9.99 | per month |
| PeptideProtocol Pro Monthly | $9.99 | per month |
| Peptide Protocol Pro | $59.99 | per year |
| PeptideProtocol Pro Yearly | $59.99 | per year |
| Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Peptide Calculator + free?

Peptide Calculator + is free to download, with in-app purchases available.

### Is Peptide Protocol free?

Peptide Protocol is free to download, with in-app purchases available.

### Which has better reviews, Peptide Calculator + or Peptide Protocol?

Peptide Protocol is rated higher. Peptide Calculator + averages 4.7 out of 5 from 58 ratings, while Peptide Protocol averages 5.0 from 12 ratings.

### Do Peptide Calculator + or Peptide Protocol have ads?

Neither Peptide Calculator + nor Peptide Protocol shows ads.

### Which is updated more often, Peptide Calculator + or Peptide Protocol?

Peptide Calculator + ships an update every 8 days, and Peptide Protocol every 5 days. Most recently, Peptide Calculator + was updated on October 10, 2026 and Peptide Protocol on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*