# Body By Bart vs Peptide Library and Tracker

The clearest difference is update cadence: Peptide Library and Tracker at every 11 days against Body By Bart's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Body By Bart sells 1 in-app purchase, starting at $149.99 per month and Peptide Library and Tracker sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Body By Bart ships an update every 2 months, Peptide Library and Tracker every 11 days. Both last shipped on November 9, 2026.

## The numbers

| Metric | Body By Bart | Peptide Library and Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (28 ratings)](https://appshunter.io/ios/app/peptide-library-and-tracker/id6755092737/reviews)** |
| Number of ratings | — | **28** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 56 MB | 95 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [bart tompkins](https://appshunter.io/developer/1851145477) | [Superfime LLC](https://appshunter.io/developer/1833586524) |

## What reviewers say

### Body By Bart

[App page](https://appshunter.io/ios/app/body-by-bart/id6754962583)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Coaching | $149.99 | per month |


### Peptide Library and Tracker

[App page](https://appshunter.io/ios/app/peptide-library-and-tracker/id6755092737)

This app serves as a comprehensive guide and lab assistant for peptide research. It offers a detailed peptide library, dose calculation tools, and advanced tracking features for logging, inventory management, and protocol adherence. Users can also access educational content and community Q&A to enhance their research workflow.

**Highlights:** Comprehensive Peptide Library & Database, Advanced Peptide Dose Calculator, Smart Tracking & Calendar View, Lab Inventory Management, Protocol Tracking & Lab Assistant, Integrated Peptide Education

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Library Pro Monthly | $4.99 | per month |
| Peptide Library Pro Monthly Offer | $4.99 | per month |
| Peptide Library Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Body By Bart free?

Body By Bart is free to download, with in-app purchases available.

### Is Peptide Library and Tracker free?

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

### Do Body By Bart or Peptide Library and Tracker have ads?

Neither Body By Bart nor Peptide Library and Tracker shows ads.

### Which is updated more often, Body By Bart or Peptide Library and Tracker?

Body By Bart ships an update every 2 months, and Peptide Library and Tracker every 11 days. Most recently, Body By Bart was updated on November 9, 2026 and Peptide Library and Tracker on November 9, 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.*