# Peptide Stack Tracker vs Peptid.io

The clearest difference is update cadence: Peptide Stack Tracker at every 11 days against Peptid.io's every 6 weeks. Peptid.io's advantage is iOS requirement (13.4 vs 26.2). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Peptide Stack Tracker sells 2 in-app purchases, starting at $5.99 per 7 days and Peptid.io sells 3 in-app purchases, starting at $19.99 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 — 5.0 for Peptide Stack Tracker against 5.0 for Peptid.io. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Peptide Stack Tracker ships an update every 11 days, Peptid.io every 6 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Peptide Stack Tracker | Peptid.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/peptide-stack-tracker/id6764719435/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/peptidio-peptides-and-macros/id6770778753/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 6 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 12 MB | 31 MB |
| Requires iOS | 26.2 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [PATRYK KOWALEWSKI](https://appshunter.io/developer/1871044842) | [Denis Korovkin](https://appshunter.io/developer/1896763442) |

## What reviewers say

### Peptide Stack Tracker

[App page](https://appshunter.io/ios/app/peptide-stack-tracker/id6764719435)

This app helps adults meticulously track GLP-1 and peptide protocols. Log doses, manage injection sites, monitor vial inventory, and record wellness check-ins. Stay organized without manual logs or guesswork.

**Highlights:** Log injections with details, Create custom reminder schedules, Track multiple compounds, Manage vial inventory, Monitor injection site rotation, Record weight and wellness metrics, View bio-analytics and trend charts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Pro Monthly | $5.99 | per 7 days |
| Peptide Pro Yearly | $39.99 | per year |


### Peptid.io

[App page](https://appshunter.io/ios/app/peptidio-peptides-and-macros/id6770778753)

This app serves as a research companion and private log for adults interested in peptides, GLP-1 protocols, and nutrition. It allows users to build protocols, log doses with detailed notes, track nutrition goals, and access an evidence-based library. An AI coach provides educational insights on compounds and their mechanisms.

**Highlights:** Protocol building with compound stacks, Dose logging with injection site map, Estimated compound level tracking, Vial inventory and reconstitution calculation, Calorie and macro goal setting, AI-powered educational coach, Evidence-based compound library

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $19.99 | per month |
| Pro 6-Month | $79.99 | per 6 months |
| Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is Peptide Stack Tracker free?

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

### Is Peptid.io free?

Peptid.io is free to download, with in-app purchases available.

### Which has better reviews, Peptide Stack Tracker or Peptid.io?

Peptide Stack Tracker and Peptid.io are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Peptide Stack Tracker or Peptid.io have ads?

Neither Peptide Stack Tracker nor Peptid.io shows ads.

### Which is updated more often, Peptide Stack Tracker or Peptid.io?

Peptide Stack Tracker ships an update every 11 days, and Peptid.io every 6 weeks. Most recently, Peptide Stack Tracker was updated on October 7, 2026 and Peptid.io on October 8, 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.*