# Peptide Library and Tracker vs Hydro Hero

The clearest difference is monetization model: Peptide Library and Tracker at free against Hydro Hero's freemium. Peptide Library and Tracker also leads on ratings volume (27 vs 7). Hydro Hero's advantage is rating (5.0 vs 4.7) and update cadence (every 4 days vs every 11 days). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Peptide Library and Tracker sells 3 in-app purchases, starting at $4.99 per month and Hydro Hero sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Hydro Hero holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 27 and 7 respectively. Written reviews point the same way: 86% of Peptide Library and Tracker's written reviews are positive against 100% of Hydro Hero's.

Peptide Library and Tracker ships an update every 11 days, Hydro Hero every 4 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Peptide Library and Tracker | Hydro Hero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (27 ratings)](https://appshunter.io/ios/app/peptide-library-and-tracker/id6755092737/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/hydro-hero/id6764692053/reviews)** |
| Number of ratings | **27** | 7 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 95 MB | 67 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 12+ |
| Developer | [Superfime LLC](https://appshunter.io/developer/1833586524) | [Dylan Matuschka](https://appshunter.io/developer/1895881125) |

## What reviewers say

### 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 |


### Hydro Hero

[App page](https://appshunter.io/ios/app/hydro-hero/id6764692053)

This app makes staying hydrated enjoyable by turning each drink into a rewarding challenge. Log your intake, visualize your progress, and celebrate reaching your daily hydration goals with fun animations and sound effects.

**Highlights:** Log drinks with animated reveals, Customizable sound packs, Streaks and achievement badges, Detailed stats and trends, Track various beverage types, Sync with Apple Health, Reminders and widgets, Apple Watch integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access - Monthly | $0.99 | per month |
| Pro Access - One Time | $9.99 | one-time |


## Frequently asked questions

### Is Peptide Library and Tracker free?

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

### Is Hydro Hero free?

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

### Which has better reviews, Peptide Library and Tracker or Hydro Hero?

Hydro Hero is rated higher. Peptide Library and Tracker averages 4.7 out of 5 from 27 ratings, while Hydro Hero averages 5.0 from 7 ratings.

### Do Peptide Library and Tracker or Hydro Hero have ads?

Neither Peptide Library and Tracker nor Hydro Hero shows ads.

### Which is updated more often, Peptide Library and Tracker or Hydro Hero?

Peptide Library and Tracker ships an update every 11 days, and Hydro Hero every 4 days. Most recently, Peptide Library and Tracker was updated on November 8, 2026 and Hydro Hero on October 31, 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.*