# Peptide Calculator vs PepTracker

Peptide Calculator and PepTracker are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Peptide Calculator sells 11 in-app purchases, starting at $0.99 per 7 days and PepTracker sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Peptide Calculator against 4.7 for PepTracker. Both are backed by a comparable volume of ratings — 424 and 413 respectively. Written reviews are what separate them: 79% of Peptide Calculator's written reviews are positive against 77% of PepTracker's.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 15, 2026.

## The numbers

| Metric | Peptide Calculator | PepTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (424 ratings)](https://appshunter.io/ios/app/peptide-calculator-pepflow/id6740525224/reviews)** | [4.7 (413 ratings)](https://appshunter.io/ios/app/peptracker-dose-log/id6747189889/reviews) |
| Number of ratings | **424** | 413 |
| Positive reviews | **78.6% of reviews** | 77.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 133 MB | 17 MB |
| Requires iOS | 18.0 | 18 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [keinois OU](https://appshunter.io/developer/1597616328) | [Jayven Alan Villagomez Peredo](https://appshunter.io/developer/1820200864) |

## What reviewers say

### Peptide Calculator

[App page](https://appshunter.io/ios/app/peptide-calculator-pepflow/id6740525224)

Calculate peptide dosages and reconstitution accurately and quickly. Track your injections with timely reminders and live activities. Save custom formulas and sync across devices for seamless management.

**Highlights:** Peptide dosage calculation, Reconstitution guidance, Injection time tracking, Custom formula saving, Widget for daily doses, Reminders and Live Activities, iCloud sync across devices

**Features:** Family Sharing

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepFlow PRO (Weekly) | $0.99 | per 7 days |
| PepFlow PRO (Monthly) | $2.99 | per month |
| PepFlow PRO (Weekly) | $2.99 | per 7 days |
| Peptide PRO (Weekly) | $2.99 | per 7 days |
| PepFlow PRO (Weekly) | $3.99 | per 7 days |
| PepFlow PRO (Annual) | $8.99 | per year |
| PepFlow PRO (Monthly) | $9.99 | per month |
| Peptide PRO (Annual) | $14.99 | per year |
| Peptide PRO (Annual) | $19.99 | per year |
| PepFlow PRO (Annual) | $29.99 | per year |
| Peptide PRO (Annual) | $44.99 | per year |


### PepTracker

[App page](https://appshunter.io/ios/app/peptracker-dose-log/id6747189889)

This app helps users meticulously track peptide and GLP-1 medication doses. It allows for the creation of structured protocols, scheduling of injections, and calculation of precise syringe volumes. Users can monitor progress over time and receive reminders for upcoming doses.

**Highlights:** Log injection doses, Build peptide/GLP-1 protocols, Built-in dose calculator, Schedule reminders, Track progress metrics, Export logs

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yeary | $47.99 | per year |

**What reviewers like**

- 👍 Intuitive and easy to use
- 🚀 Powerful dose calculator
- 📊 Helpful for tracking weight loss goals
- ⏰ Useful reminders for injections
- 🗂️ Organizes multiple protocols

**What reviewers complain about**

- ⚠️ Only allows mcg dosage and calculations

**Reported bugs**

- Units function not working

**Requested features**

- Support for more units of measurement
- Ability to track more than 2 protocols


## Frequently asked questions

### Is Peptide Calculator free?

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

### Is PepTracker free?

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

### Which has better reviews, Peptide Calculator or PepTracker?

Peptide Calculator is rated higher. Peptide Calculator averages 4.8 out of 5 from 424 ratings, while PepTracker averages 4.7 from 413 ratings.

### Do Peptide Calculator or PepTracker have ads?

Neither Peptide Calculator nor PepTracker shows ads.

### Which is updated more often, Peptide Calculator or PepTracker?

Peptide Calculator ships an update every 2 weeks, and PepTracker every 2 weeks. Most recently, Peptide Calculator was updated on October 15, 2026 and PepTracker on October 15, 2026.

---

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