# Peptides Calculator vs Peptide Stack

The clearest difference is ads: Peptides Calculator at none against Peptide Stack's shown. Peptides Calculator also leads on ratings volume (173 vs 5). Peptide Stack's advantage is update cadence (daily vs every 5 days) and review sentiment (67% vs 55%). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Peptides Calculator sells 11 in-app purchases, starting at $9.99 per month and Peptide Stack sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.3 for Peptides Calculator against 4.2 for Peptide Stack. That said, the two scores are not equally well evidenced: Peptides Calculator has 173 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 55% of Peptides Calculator's written reviews are positive against 67% of Peptide Stack's.

Peptides Calculator ships an update every 5 days, Peptide Stack daily. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Peptides Calculator | Peptide Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (173 ratings)](https://appshunter.io/ios/app/peptides-calculator/id6744431355/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/peptide-stack-glp-1-tracker/id6759533641/reviews) |
| Number of ratings | **173** | 5 |
| Positive reviews | 54.5% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Daily** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 77 MB | 13 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Sphnix, Inc](https://appshunter.io/developer/1796901749) | [Brandon King](https://appshunter.io/developer/1879265719) |

## What reviewers say

### Peptides Calculator

[App page](https://appshunter.io/ios/app/peptides-calculator/id6744431355)

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.

**Highlights:** Log and calculate reconstitution details, Save and organize vial records, Browse peptide reference library, Access educational videos and articles, Track weight over time, Multi-device sync (Pro)

**Features:** macOS Compatibility, Family Sharing, Apple Wallet, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $9.99 | per month |
| Family Monthly Premium Access | $14.99 | per month |
| Premium Plus | $14.99 | per month |
| Premium Plus Family (Montly) | $19.99 | per month |
| Pro Loyalty Yearly | $54.99 | per year |
| Yearly Premium Access | $99.99 | per year |
| Premium Plus Loyalty Yearly | $99.99 | per year |
| Family Yearly Premium Access | $149.99 | per year |
| Premium Plus (Yearly) | $149.99 | per year |
| Premium Plus — Family (Yearly) | $199.99 | per year |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to save vial info
- 👍 Nicely set up and laid out
- 💡 Streaks and last taken feature

**What reviewers complain about**

- 🐛 Lost access to previous peptide calculations
- 🐛 Unable to update streaks and last taken
- 🐛 Unable to record when a dose was taken

**Reported bugs**

- All vials disappeared after an update
- Unable to find how to update streaks and last taken

**Requested features**

- Add shot tracker to record when a dose was taken
- Allow editing of vial information and dosing
- Add option to set cycle length in weeks, not just days
- Allow changing dose for different weeks when titrating


### Peptide Stack

[App page](https://appshunter.io/ios/app/peptide-stack-glp-1-tracker/id6759533641)

Track your GLP-1 medication doses and monitor your weight progress. This app supports various peptide medications and custom stacks, helping you manage your health journey.

**Highlights:** GLP-1 medication tracking, Weight progress monitoring, Custom peptide stack support, Dose logging, Subscription management

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $9.99 | per month |
| Annual Plan | $49.99 | per year |


## Frequently asked questions

### Is Peptides Calculator free?

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

### Is Peptide Stack free?

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

### Which has better reviews, Peptides Calculator or Peptide Stack?

Peptides Calculator is rated higher. Peptides Calculator averages 4.3 out of 5 from 173 ratings, while Peptide Stack averages 4.2 from 5 ratings.

### Do Peptides Calculator or Peptide Stack have ads?

Peptide Stack shows ads; Peptides Calculator does not.

### Which is updated more often, Peptides Calculator or Peptide Stack?

Peptides Calculator ships an update every 5 days, and Peptide Stack daily. Most recently, Peptides Calculator was updated on October 12, 2026 and Peptide Stack on October 2, 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.*