# Peptide Tracker by Peptide AI vs PepStack Pro

The clearest difference is rating: PepStack Pro at 5.0 against Peptide Tracker by Peptide AI's 4.5. PepStack Pro also leads on review sentiment (100% vs 76%) and iOS requirement (15.1 vs 18.0). Peptide Tracker by Peptide AI's advantage is ratings volume (75 vs 12). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Peptide Tracker by Peptide AI sells 4 in-app purchases, starting at $6.99 per 7 days and PepStack Pro sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

PepStack Pro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Peptide Tracker by Peptide AI has 75 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 76% of Peptide Tracker by Peptide AI's written reviews are positive against 100% of PepStack Pro's.

Peptide Tracker by Peptide AI ships an update weekly, PepStack Pro every 8 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Peptide Tracker by Peptide AI | PepStack Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (75 ratings)](https://appshunter.io/ios/app/peptide-tracker-by-peptide-ai/id6760374374/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/pepstack-pro/id6760684355/reviews)** |
| Number of ratings | **75** | 12 |
| Positive reviews | 76.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | Freemium | Freemium |
| Size | 72 MB | 39 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Peptide AI](https://appshunter.io/developer/1884181684) | [MyFlowMD, LLC](https://appshunter.io/developer/1885185443) |

## What reviewers say

### Peptide Tracker by Peptide AI

[App page](https://appshunter.io/ios/app/peptide-tracker-by-peptide-ai/id6760374374)

Log peptide and GLP-1 doses, track vial levels, and rotate injection sites. An AI coach analyzes your data, suggests experiments, and provides research-backed answers. Sync with wearables and export your history for your clinician.

**Highlights:** Dose logging, Vial level tracking, Injection site rotation, AI coaching, Wearable sync, Data export, Community rooms

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $6.99 | per 7 days |
| Premium Monthly | $14.99 | per month |
| Premium Yearly Offer | $29.99 | per year |
| Premium Yearly | $59.99 | per year |


### PepStack Pro

[App page](https://appshunter.io/ios/app/pepstack-pro/id6760684355)

This app provides a comprehensive database of peptides, personalized protocol recommendations, and tools to track your peptide journey. Monitor injections, log progress, and check for interactions to optimize your health and wellness goals safely.

**Highlights:** Peptide database with clinical data, Personalized peptide recommendations, Interaction checker for peptide safety, Physician-designed protocol templates, Injection schedule and dose tracking, Lab and progress journaling, Direct physician connection

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepStack Pro Premium | $8.99 | per month |
| PepStack Pro Premium | $49.99 | per year |


## Frequently asked questions

### Is Peptide Tracker by Peptide AI free?

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

### Is PepStack Pro free?

PepStack Pro is free to download, with in-app purchases available.

### Which has better reviews, Peptide Tracker by Peptide AI or PepStack Pro?

PepStack Pro is rated higher. Peptide Tracker by Peptide AI averages 4.5 out of 5 from 75 ratings, while PepStack Pro averages 5.0 from 12 ratings.

### Do Peptide Tracker by Peptide AI or PepStack Pro have ads?

Neither Peptide Tracker by Peptide AI nor PepStack Pro shows ads.

### Which is updated more often, Peptide Tracker by Peptide AI or PepStack Pro?

Peptide Tracker by Peptide AI ships an update weekly, and PepStack Pro every 8 days. Most recently, Peptide Tracker by Peptide AI was updated on October 31, 2026 and PepStack Pro on October 31, 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.*