# Peptide Tracker vs Vialy

The clearest difference is in-app purchases: Vialy at none against Peptide Tracker's 2. Vialy also leads on update cadence (every 2 days vs every 5 days). Peptide Tracker's advantage is ratings volume (41 vs 1) and device support (3 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Peptide Tracker sells 2 in-app purchases, starting at $9.99 per month. Vialy asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Peptide Tracker against 5.0 for Vialy. That said, the two scores are not equally well evidenced: Peptide Tracker has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Peptide Tracker ships an update every 5 days, Vialy every 2 days. The most recent releases landed on September 26, 2026 and August 3, 2026 respectively.

## The numbers

| Metric | Peptide Tracker | Vialy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (41 ratings)](https://appshunter.io/ios/app/peptide-tracker-frontload/id6763661364/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/vialy-peptide-tracker/id6768241513/reviews) |
| Number of ratings | **41** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Freemium | **Free** |
| Size | 50 MB | 14 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [STACKEDDD LLC](https://appshunter.io/developer/1895423538) | [Lunium AB](https://appshunter.io/developer/1857989339) |

## What reviewers say

### Peptide Tracker

[App page](https://appshunter.io/ios/app/peptide-tracker-frontload/id6763661364)

Track peptide and TRT/HRT protocols with dose calculators, blood-level charts, and injection reminders. Features an AI coach that analyzes your labs and health data for personalized insights. Your health data remains private on your device.

**Highlights:** Dose, blend, and half-life calculators, Blood-level PK charts, Injection logging with site rotation, Full inventory tracking, Phased protocols and titration schedules, Lab result tracking and trend charts, AI coach for health data analysis

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackeddd Pro | $9.99 | per month |
| Stackeddd Pro | $59.99 | per year |


### Vialy

[App page](https://appshunter.io/ios/app/vialy-peptide-tracker/id6768241513)

This app helps adults using prescribed peptides track their doses, manage protocols, and log injections. It calculates concentrations and units, plans injection schedules, and tracks vial usage. A reference library and dose reminders are included.

**Highlights:** Live dose and concentration calculation, Customizable protocol planning, Body map injection logging, Vial usage and cost tracking, Built-in peptide reference library, Dose reminders, Data export (JSON/CSV)

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

**In-app purchases:** none


## Frequently asked questions

### Is Peptide Tracker free?

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

### Is Vialy free?

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

### Which has better reviews, Peptide Tracker or Vialy?

Peptide Tracker and Vialy are both rated 5.0 out of 5 on the App Store, from 41 and 1 ratings respectively.

### Do Peptide Tracker or Vialy have ads?

Neither Peptide Tracker nor Vialy shows ads.

### Which is updated more often, Peptide Tracker or Vialy?

Peptide Tracker ships an update every 5 days, and Vialy every 2 days. Most recently, Peptide Tracker was updated on September 26, 2026 and Vialy on August 3, 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.*