# Peptide Log vs prtcl

The clearest difference is iOS requirement: prtcl at 15.0 against Peptide Log's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Peptide Log sells 2 in-app purchases, starting at $8.99 per month and prtcl sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Peptide Log ships an update every 8 days, prtcl every 2 weeks. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Peptide Log | prtcl |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (35 ratings)](https://appshunter.io/ios/app/peptide-log/id6744315346/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | Subscription | — |
| Size | 60 MB | 35 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Johannes von Grundherr](https://appshunter.io/developer/1806943173) | [Dafydd Llwyd](https://appshunter.io/developer/1890528951) |

## What reviewers say

### Peptide Log

[App page](https://appshunter.io/ios/app/peptide-log/id6744315346)

Manage your peptide treatment plan with this app. Track injections, monitor progress, manage inventory, and visualize your treatment with advanced features. It offers a free trial before requiring a subscription.

**Highlights:** Multi-phase protocol tracking, Custom peptide blend creation, Full inventory management, Consumables tracking with alerts, Pharmacokinetic concentration curves, Injection site rotation, Progress photo tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Log Monthly | $8.99 | per month |
| Peptide Log Yearly | $39.99 | per year |


### prtcl

[App page](https://appshunter.io/ios/app/prtcl-protocol-tracker/id6761626815)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| prtcl Pro | $7.99 | per month |
| prtcl Pro | $59.99 | per year |


## Frequently asked questions

### Is Peptide Log free?

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

### Is prtcl free?

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

### Do Peptide Log or prtcl have ads?

Neither Peptide Log nor prtcl shows ads.

### Which is updated more often, Peptide Log or prtcl?

Peptide Log ships an update every 8 days, and prtcl every 2 weeks. Most recently, Peptide Log was updated on October 2, 2026 and prtcl on October 11, 2026.

---

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