# PeptideCore vs RetaPro

The clearest difference is update cadence: PeptideCore at every 3 weeks against RetaPro's every 2 months. RetaPro's advantage is iOS requirement (15.5 vs 26.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PeptideCore sells 2 in-app purchases, starting at $12.99 per month and RetaPro sells 2 in-app purchases, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.

PeptideCore ships an update every 3 weeks, RetaPro every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PeptideCore | RetaPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (45 ratings)](https://appshunter.io/ios/app/retapro-retatrutide-tracker/id6772027026/reviews)** |
| Number of ratings | — | **45** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 103 MB |
| Requires iOS | 26.4 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Nicolas Rios](https://appshunter.io/developer/1519523163) | [Agora Labs Ltda.](https://appshunter.io/developer/1846683084) |

## What reviewers say

### PeptideCore

[App page](https://appshunter.io/ios/app/peptidecore-shot-and-stack-log/id6769197152)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $12.99 | per month |
| Pro Yearly | $79.99 | per year |


### RetaPro

[App page](https://appshunter.io/ios/app/retapro-retatrutide-tracker/id6772027026)

This app helps users meticulously track their retatrutide treatment. It logs doses, manages vials, calculates reconstitutions, and monitors progress with features like meal logging and weight tracking. Smart reminders ensure no dose is missed.

**Highlights:** Retatrutide dose logging, Vial volume monitoring, Reconstitution calculation, Protocol and cycle tracking, Personalized meal logging, Weight and progress photo tracking, Smart injection reminders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Plan | $39.99 | per year |
| Lifetime Plan | $39.99 | one-time |


## Frequently asked questions

### Is PeptideCore free?

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

### Is RetaPro free?

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

### Do PeptideCore or RetaPro have ads?

Neither PeptideCore nor RetaPro shows ads.

### Which is updated more often, PeptideCore or RetaPro?

PeptideCore ships an update every 3 weeks, and RetaPro every 2 months. Most recently, PeptideCore was updated on October 23, 2026 and RetaPro on October 25, 2026.

---

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