# Prof. Peptide Protocol Tracker vs Vial AI

The clearest difference is in-app purchases: Prof. Peptide Protocol Tracker at none against Vial AI's 4. Prof. Peptide Protocol Tracker also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Vial AI sells 4 in-app purchases, starting at $14.99 per month. Prof. Peptide Protocol Tracker asks for nothing beyond the download.

Prof. Peptide Protocol Tracker ships an update every 3 weeks, Vial AI monthly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Prof. Peptide Protocol Tracker | Vial AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prof-peptide-protocol-tracker/id6761995269/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 33 MB | 61 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Strength Cycle Studios, LLC](https://appshunter.io/developer/1892356312) | [Fabio Jonathan Arifin](https://appshunter.io/developer/1803911370) |

## What reviewers say

### Prof. Peptide Protocol Tracker

[App page](https://appshunter.io/ios/app/prof-peptide-protocol-tracker/id6761995269)

Track peptide and GLP-1 doses, calculate reconstitutions, and manage complex protocols. Access a compound library, visualize estimated levels, and review research summaries. Your data remains private and on your device.

**Highlights:** Dose logging and reminders, Reconstitution calculator, 60+ compound library, Full protocol and stack support, Estimated compound levels visualization, AI research assistant, Results and trends tracking

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

**In-app purchases:** none


### Vial AI

[App page](https://appshunter.io/ios/app/vial-ai-peptide-tracker/id6763749357)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vial Monthly | $14.99 | per month |
| Vial Premium (Special Price) | $39.99 | per year |
| Vial Yearly | $59.99 | per year |
| Vial Lifetime (Limited) | $149.99 | one-time |


## Frequently asked questions

### Is Prof. Peptide Protocol Tracker free?

Prof. Peptide Protocol Tracker is free to download, with no in-app purchases.

### Is Vial AI free?

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

### Do Prof. Peptide Protocol Tracker or Vial AI have ads?

Vial AI shows ads; Prof. Peptide Protocol Tracker does not.

### Which is updated more often, Prof. Peptide Protocol Tracker or Vial AI?

Prof. Peptide Protocol Tracker ships an update every 3 weeks, and Vial AI monthly. Most recently, Prof. Peptide Protocol Tracker was updated on October 2, 2026 and Vial AI on October 7, 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.*