# myStack vs Pep AI

The clearest difference is review sentiment: myStack at 100% against Pep AI's 35%. myStack also leads on in-app purchases (none vs 10) and ads (none vs shown). Pep AI's advantage is update cadence (every 6 days vs every 3 months) and ratings volume (4K vs 7). On price and device support there is nothing between them.

Both are free to download. Pep AI sells 8 in-app purchases, starting at $9.99 per month. myStack asks for nothing beyond the download.

myStack holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Pep AI has 4K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 100% of myStack's written reviews are positive against 35% of Pep AI's.

myStack ships an update every 3 months, Pep AI every 6 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | myStack | Pep AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/mystack-health-intelligence/id6743498624/reviews)** | [4.7 (4K ratings)](https://appshunter.io/ios/app/pep-ai-glp-1-tracker-app/id6758682710/reviews) |
| Number of ratings | 7 | **4K** |
| Positive reviews | **100.0% of reviews** | 35.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 135 MB |
| Requires iOS | **14.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 17+ |
| Developer | [Balam LLC](https://appshunter.io/developer/1803211636) | [Zode Development LLC](https://appshunter.io/developer/1851109622) |

## What reviewers say

### myStack

[App page](https://appshunter.io/ios/app/mystack-health-intelligence/id6743498624)

This app uses AI to analyze clinical studies and create personalized supplement recommendations based on your health goals, diet, and medications. It provides evidence-based advice, dosage suggestions, and summaries of scientific research, developed by experts.

**Highlights:** Personalized supplement stacks, AI-driven recommendations, Analysis of 10,000+ clinical studies, Medication interaction screening, Evidence-based supplement advice, Quality-vetted supplement curation

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

**In-app purchases:** none


### Pep AI

[App page](https://appshunter.io/ios/app/pep-ai-glp-1-tracker-app/id6758682710)

This app helps you meticulously track peptide research, including inventory, logs, nutrition, wellness, and notes. It replaces scattered data with an organized, private system for consistency and offers features like injection site tracking, side effect logging, and AI-powered meal scanning.

**Highlights:** Inventory & Organization, Injection Site Tracker, Side Effects Tracking, Nutrition Logging, Meal Scanner, Apple Health Integration, Bloodwork Tracker, AI Insights

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pep Month Updated | $9.99 | per month |
| Pep Discount Updated | $29.99 | per year |
| Pep AI Yearly | $29.99 | per year |
| Pep AI Yearly | $29.99 | per year |
| Pep Year Updated | $29.99 | per year |
| Pep Year Updated | $39.99 | per year |
| Pep Year Updated | $44.99 | per year |
| Pep Year Subscription | $49.99 | per year |


## Frequently asked questions

### Is myStack free?

myStack is free to download, with no in-app purchases.

### Is Pep AI free?

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

### Which has better reviews, myStack or Pep AI?

myStack is rated higher. myStack averages 5.0 out of 5 from 7 ratings, while Pep AI averages 4.7 from 4K ratings.

### Do myStack or Pep AI have ads?

Pep AI shows ads; myStack does not.

### Which is updated more often, myStack or Pep AI?

myStack ships an update every 3 months, and Pep AI every 6 days. Most recently, myStack was updated on October 30, 2026 and Pep AI on November 5, 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.*