# PepPedia vs PeptideBros

The clearest difference is review sentiment: PeptideBros at 100% against PepPedia's 53%. PeptideBros also leads on rating (5.0 vs 3.6). PepPedia's advantage is update cadence (every 6 days vs every 3 weeks) and ratings volume (77 vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. PepPedia sells 2 in-app purchases, starting at $6.99 per month and PeptideBros sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PeptideBros holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: PepPedia has 77 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 53% of PepPedia's written reviews are positive against 100% of PeptideBros's.

PepPedia ships an update every 6 days, PeptideBros every 3 weeks. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PepPedia | PeptideBros |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (77 ratings)](https://appshunter.io/ios/app/peppedia/id6755275369/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/peptidebros/id6762238490/reviews)** |
| Number of ratings | **77** | 5 |
| Positive reviews | 52.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 77 MB | 43 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [PepPedia, Inc.](https://appshunter.io/developer/1852919295) | [Adam Farrar](https://appshunter.io/developer/1832870508) |

## What reviewers say

### PepPedia

[App page](https://appshunter.io/ios/app/peppedia/id6755275369)

An educational reference for peptide research, offering a comprehensive library of peptide profiles, personal tracking tools for notes and inventory, and helpful math calculators. Securely sync your data across devices to stay organized and informed.

**Highlights:** Peptide research library, Personal notes and logs, Inventory and expiration tracking, Personal metrics logging, Reconstitution calculator, Concentration math helper

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peppedia Pro Monthly | $6.99 | per month |
| Peppedia Pro Yearly | $19.99 | per year |


### PeptideBros

[App page](https://appshunter.io/ios/app/peptidebros/id6762238490)

This app helps researchers manage and track their peptide injection protocols. It allows for custom protocol creation, detailed injection logging, and monitoring of progress over time. Features include streak tracking, adherence analytics, and an in-app peptide encyclopedia.

**Highlights:** Custom peptide protocol creation, Detailed injection logging, Automatic injection site rotation, Streak tracking for motivation, Adherence and analytics reporting, In-app peptide encyclopedia, Journal and notes for research experience

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lab Notebook Monthly | $4.99 | per month |
| Lab Notebook (Annual) | $39.99 | per year |


## Frequently asked questions

### Is PepPedia free?

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

### Is PeptideBros free?

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

### Which has better reviews, PepPedia or PeptideBros?

PeptideBros is rated higher. PepPedia averages 3.6 out of 5 from 77 ratings, while PeptideBros averages 5.0 from 5 ratings.

### Do PepPedia or PeptideBros have ads?

Neither PepPedia nor PeptideBros shows ads.

### Which is updated more often, PepPedia or PeptideBros?

PepPedia ships an update every 6 days, and PeptideBros every 3 weeks. Most recently, PepPedia was updated on November 12, 2026 and PeptideBros on November 5, 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.*