# Vialy vs Loop

The clearest difference is in-app purchases: Vialy at none against Loop's 3. Vialy also leads on update cadence (every 2 days vs every 4 months) and iOS requirement (17.0 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. Loop sells 3 in-app purchases, starting at $9.99 per month. Vialy asks for nothing beyond the download.

Vialy ships an update every 2 days, Loop every 4 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Vialy | Loop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vialy-peptide-tracker/id6768241513/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 months |
| Monetization | Free | — |
| Size | 15 MB | 37 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Lunium AB](https://appshunter.io/developer/1857989339) | [ROK POPOVIC](https://appshunter.io/developer/6778476196) |

## What reviewers say

### 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


### Loop

[App page](https://appshunter.io/ios/app/loop-peptide-tracker/id6778476194)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Loop Pro - Monthly | $9.99 | per month |
| Loop Pro - Yearly Offer | $29.99 | per year |
| Loop Pro - Yearly | $39.99 | per year |


## Frequently asked questions

### Is Vialy free?

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

### Is Loop free?

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

### Do Vialy or Loop have ads?

Neither Vialy nor Loop shows ads.

### Which is updated more often, Vialy or Loop?

Vialy ships an update every 2 days, and Loop every 4 months. Most recently, Vialy was updated on October 15, 2026 and Loop on October 14, 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.*