# The QUAD Studios vs PeptideJournal

The clearest difference is price: The QUAD Studios at Free against PeptideJournal's $5.99. The QUAD Studios also leads on iOS requirement (14.0 vs 17.6). PeptideJournal's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On in-app purchases and device support there is nothing between them.

The QUAD Studios is free to download; PeptideJournal costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

The QUAD Studios ships an update every 2 months, PeptideJournal weekly. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | The QUAD Studios | PeptideJournal |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | — | **[4.3 (20 ratings)](https://appshunter.io/ios/app/peptidejournal/id6751492210/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Paid |
| Size | 123 MB | 12 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Monarch Concepts, LLC](https://appshunter.io/developer/1808857716) | [Christopher Madrid](https://appshunter.io/developer/1835373775) |

## What reviewers say

### The QUAD Studios

[App page](https://appshunter.io/ios/app/the-quad-studios/id6744676431)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### PeptideJournal

[App page](https://appshunter.io/ios/app/peptidejournal/id6751492210)

This app helps you precisely calculate peptide doses, manage your inventory, and track your usage history. It offers smart scheduling and detailed analytics, all while keeping your data private and secure on your device.

**Highlights:** Precision dose calculation, Reconstitution simulation, Inventory management, Dose history tracking, Usage analytics, Smart scheduling, Calendar integration

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

**In-app purchases:** none


## Frequently asked questions

### Is The QUAD Studios free?

The QUAD Studios is free to download, with no in-app purchases.

### Is PeptideJournal free?

PeptideJournal costs $5.99, with no in-app purchases.

### Do The QUAD Studios or PeptideJournal have ads?

The QUAD Studios shows ads; PeptideJournal does not.

### Which is updated more often, The QUAD Studios or PeptideJournal?

The QUAD Studios ships an update every 2 months, and PeptideJournal weekly. Most recently, The QUAD Studios was updated on October 8, 2026 and PeptideJournal on October 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.*