# Peptaflow vs Vial

The clearest difference is rating: Peptaflow at 5.0 against Vial's 3.7. Peptaflow also leads on monetization model (free vs freemium). Vial's advantage is ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Peptaflow sells 1 one-off in-app purchase and Vial sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Peptaflow holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Peptaflow ships an update every 4 days, Vial every 3 days. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Peptaflow | Vial |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/peptaflow-peptide-tracker/id6762572393/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/vial-peptide-tracker/id6762662021/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 9 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [AppFactor LLC](https://appshunter.io/developer/1886628329) | [JEFFREY BLAINE HOLMAN](https://appshunter.io/developer/1894949295) |

## What reviewers say

### Peptaflow

[App page](https://appshunter.io/ios/app/peptaflow-peptide-tracker/id6762572393)

Manage your peptide protocols, track doses, and monitor vial inventory in one private app. Features include custom stack building, AI-generated summaries, and Apple Health synchronization. Stay organized and informed about your health journey.

**Highlights:** Custom peptide stack building, Fast dose logging, Vial and inventory management, AI-generated progress summaries, Peptide reference library, Apple Health synchronization, Private, on-device data storage

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $9.99 | one-time |


### Vial

[App page](https://appshunter.io/ios/app/vial-peptide-tracker/id6762662021)

This app helps you precisely manage peptide protocols by tracking inventory, logging doses, and modeling compound levels in your body over time. It also includes a wellness journal, lab result tracking, and body composition logging.

**Highlights:** Track peptide inventory and remaining amounts, Log doses with automatic inventory updates, Model compound levels in the body over time, Analyze dose frequency and intake trends, Journal mood, energy, and side effects, Store and track lab results and body composition, Reconstitution calculator for precise concentrations, Low inventory alerts

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vial Premium Monthly | $4.99 | per month |
| Vial Premium Annual | $24.99 | per 6 months |
| Vial Lifetime Access | $44.99 | one-time |


## Frequently asked questions

### Is Peptaflow free?

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

### Is Vial free?

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

### Which has better reviews, Peptaflow or Vial?

Peptaflow is rated higher. Peptaflow averages 5.0 out of 5 from 1 ratings, while Vial averages 3.7 from 3 ratings.

### Do Peptaflow or Vial have ads?

Neither Peptaflow nor Vial shows ads.

### Which is updated more often, Peptaflow or Vial?

Peptaflow ships an update every 4 days, and Vial every 3 days. Most recently, Peptaflow was updated on October 1, 2026 and Vial on October 6, 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.*