# Peptidia vs Loop

The clearest difference is update cadence: Peptidia at every 11 days against Loop's every 2 months. Peptidia also leads on iOS requirement (15.1 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Peptidia sells 3 in-app purchases, starting at $9.99 per month and Loop sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Peptidia ships an update every 11 days, Loop every 2 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | Peptidia | Loop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/peptidia-your-peptide-lab/id6768164085/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 37 MB |
| Requires iOS | **15.1** | 26.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [DR DAVE INC.](https://appshunter.io/developer/1896545825) | [ROK POPOVIC](https://appshunter.io/developer/6778476196) |

## What reviewers say

### Peptidia

[App page](https://appshunter.io/ios/app/peptidia-your-peptide-lab/id6768164085)

This app allows users to privately track their peptide usage, including product details, amounts, and personal observations. It also provides a comprehensive, evidence-backed encyclopedia of peptide research with direct links to scientific sources.

**Highlights:** Private lab for recording peptide usage, Personal journal for mood and notes, Integration with Apple Health, Visual vault for organizing vials, Curated peptide profiles with evidence passports, Direct links to research sources, Research Watch with literature alerts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptidia Pro | $9.99 | per month |
| Peptidia Monthly | $9.99 | per month |
| Peptidia Lifetime | $59.99 | one-time |


### 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 Peptidia free?

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

### Is Loop free?

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

### Do Peptidia or Loop have ads?

Neither Peptidia nor Loop shows ads.

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

Peptidia ships an update every 11 days, and Loop every 2 months. Most recently, Peptidia was updated on October 28, 2026 and Loop on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*