# Injectly vs Peptide Library and Tracker

The clearest difference is in-app purchases: Injectly at none against Peptide Library and Tracker's 3. Injectly also leads on ratings volume (501 vs 28). On price, rating, review sentiment and update cadence 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. Injectly asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Injectly against 4.8 for Peptide Library and Tracker. That said, the two scores are not equally well evidenced: Injectly has 501 ratings behind it against 28, so its average is the more settled of the two. Written reviews split almost evenly too, at 87% and 86% positive.

Injectly ships an update every 2 weeks, Peptide Library and Tracker every 11 days. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Injectly | Peptide Library and Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (501 ratings)](https://appshunter.io/ios/app/injectly/id6745237189/reviews)** | [4.8 (28 ratings)](https://appshunter.io/ios/app/peptide-library-and-tracker/id6755092737/reviews) |
| Number of ratings | **501** | 28 |
| Positive reviews | **86.5% of reviews** | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free | Free |
| Size | 48 MB | 95 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Matthias Gattermeier](https://appshunter.io/developer/1811476841) | [Superfime LLC](https://appshunter.io/developer/1833586524) |

## What reviewers say

### Injectly

[App page](https://appshunter.io/ios/app/injectly/id6745237189)

This app helps you track injectable medications, including weight, peptides, and GLP. Log injections, set reminders, and view your history. Optional account syncs data across devices and offers advanced scheduling. Gain insights into medication levels and active doses.

**Highlights:** Log injectable medication doses, Set custom reminders, View injection history (calendar/list), Cross-device data sync, Advanced scheduling options, Serum concentration insights, Data export and deletion

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

**In-app purchases:** none


### 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 Injectly free?

Injectly is free to download, with no in-app purchases.

### Is Peptide Library and Tracker free?

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

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

Injectly is rated higher. Injectly averages 4.8 out of 5 from 501 ratings, while Peptide Library and Tracker averages 4.8 from 28 ratings.

### Do Injectly or Peptide Library and Tracker have ads?

Neither Injectly nor Peptide Library and Tracker shows ads.

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

Injectly ships an update every 2 weeks, and Peptide Library and Tracker every 11 days. Most recently, Injectly was updated on November 8, 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.*