# Peptide Tracker vs Trajectory

The clearest difference is device support: Peptide Tracker at 2 against Trajectory's —. Peptide Tracker also leads on iOS requirement (15.0 vs 18.5). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Peptide Tracker | Trajectory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/peptide-tracker/id6755494668/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | — |
| Size | 4 MB | 2 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPod** | — |
| Age rating | +17 | 17+ |
| Developer | [Shred Apps, LLC](https://appshunter.io/developer/1321279347) | [Mathieu Bonte](https://appshunter.io/developer/1876251649) |

## What reviewers say

### Peptide Tracker

[App page](https://appshunter.io/ios/app/peptide-tracker/id6755494668)

This app helps you privately log and calculate doses for peptides and GLP-1 therapies. It features a reconstitution calculator, dose log, vial tracking, scheduling with reminders, and a searchable catalog of common substances. All data is stored locally on your device.

**Highlights:** Reconstitution calculator, Private dose logging, Vial tracking with expiry alerts, Dose scheduling and reminders, Searchable peptide catalog, Offline functionality, Data export (CSV/JSON)

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

**In-app purchases:** none


### Trajectory

[App page](https://appshunter.io/ios/app/trajectory-weight-tracker/id6759000055)

**In-app purchases:** none


## Frequently asked questions

### Is Peptide Tracker free?

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

### Is Trajectory free?

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

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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.*