# Stack Tracker AI vs Peptide Tracker & Calculator

The clearest difference is review sentiment: Peptide Tracker & Calculator at 70% against Stack Tracker AI's 0%. Peptide Tracker & Calculator also leads on rating (4.8 vs 4.0) and update cadence (every 2 days vs fortnightly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Stack Tracker AI sells 2 in-app purchases, starting at $1.99 per month and Peptide Tracker & Calculator sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Peptide Tracker & Calculator holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Peptide Tracker & Calculator has 548 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Stack Tracker AI's written reviews are positive against 70% of Peptide Tracker & Calculator's.

Stack Tracker AI ships an update fortnightly, Peptide Tracker & Calculator every 2 days. The most recent releases landed on September 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Stack Tracker AI | Peptide Tracker & Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/stack-tracker-ai/id6740147043/reviews) | **[4.8 (548 ratings)](https://appshunter.io/ios/app/peptide-tracker-and-calculator/id6744902384/reviews)** |
| Number of ratings | 2 | **548** |
| Positive reviews | 0.0% of reviews | **69.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 28 MB | 71 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [MD Apps, LLC](https://appshunter.io/developer/346437629) | [David Dzeveckij](https://appshunter.io/developer/1808720973) |

## What reviewers say

### Stack Tracker AI

[App page](https://appshunter.io/ios/app/stack-tracker-ai/id6740147043)

Effortlessly track, analyze, and optimize your supplement intake for improved wellness and fitness. Gain AI-powered insights, set flexible schedules, and visualize your progress with secure, private data storage.

**Highlights:** Seamless daily supplement tracking, AI-powered insights and trends, Flexible dose scheduling, Advanced progress visualizations, Private and secure data storage, Customizable supplement types

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $9.99 | per year |


### Peptide Tracker & Calculator

[App page](https://appshunter.io/ios/app/peptide-tracker-and-calculator/id6744902384)

This app helps you meticulously track and calculate peptide dosages, inventory, and injection sites. It provides smart alerts for low stock and detailed logs of your usage history for research, fitness, or therapeutic protocols. Your data is stored securely and privately on your device.

**Highlights:** Comprehensive peptide inventory management, Precise dosing log and calculation support, Intelligent injection site rotation tracking, Smart low stock alerts, Detailed dose history review, Secure local data storage

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Access (Monthly) | $3.99 | per month |
| Full App Access (Monthly) | $4.99 | per month |
| Full App Access (Yearly) | $19.99 | per year |
| Full App Access (Yearly) | $24.99 | per year |


## Frequently asked questions

### Is Stack Tracker AI free?

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

### Is Peptide Tracker & Calculator free?

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

### Which has better reviews, Stack Tracker AI or Peptide Tracker & Calculator?

Peptide Tracker & Calculator is rated higher. Stack Tracker AI averages 4.0 out of 5 from 2 ratings, while Peptide Tracker & Calculator averages 4.8 from 548 ratings.

### Do Stack Tracker AI or Peptide Tracker & Calculator have ads?

Neither Stack Tracker AI nor Peptide Tracker & Calculator shows ads.

### Which is updated more often, Stack Tracker AI or Peptide Tracker & Calculator?

Stack Tracker AI ships an update fortnightly, and Peptide Tracker & Calculator every 2 days. Most recently, Stack Tracker AI was updated on September 17, 2026 and Peptide Tracker & Calculator on October 12, 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.*