# Peptide Calculator + vs PeptideOS+

The clearest difference is update cadence: PeptideOS+ at every 4 days against Peptide Calculator +'s every 8 days. Peptide Calculator +'s advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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 PeptideOS+ sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Peptide Calculator + ships an update every 8 days, PeptideOS+ every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Peptide Calculator + | PeptideOS+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (59 ratings)](https://appshunter.io/ios/app/peptide-calculator-plus/id6759960358/reviews)** | — |
| Number of ratings | **59** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 124 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Joseph Stein](https://appshunter.io/developer/535382667) | [ZACHARY CANCIANO GOLD](https://appshunter.io/developer/1875956705) |

## 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 |


### PeptideOS+

[App page](https://appshunter.io/ios/app/peptideos-plus/id6762200959)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $69.99 | per year |


## Frequently asked questions

### Is Peptide Calculator + free?

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

### Is PeptideOS+ free?

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

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

Neither Peptide Calculator + nor PeptideOS+ shows ads.

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

Peptide Calculator + ships an update every 8 days, and PeptideOS+ every 4 days. Most recently, Peptide Calculator + was updated on October 24, 2026 and PeptideOS+ on October 24, 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.*