# Peptide Tracker vs Peptides Calculator

The clearest difference is rating: Peptide Tracker at 4.8 against Peptides Calculator's 4.3. Peptide Tracker also leads on review sentiment (79% vs 55%). Peptides Calculator's advantage is update cadence (every 5 days vs fortnightly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Peptide Tracker sells 11 in-app purchases, starting at $0.99 per 7 days and Peptides Calculator sells 11 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Peptide Tracker holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 439 and 174 respectively. Written reviews point the same way: 79% of Peptide Tracker's written reviews are positive against 55% of Peptides Calculator's.

Peptide Tracker ships an update fortnightly, Peptides Calculator every 5 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Peptide Tracker | Peptides Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (439 ratings)](https://appshunter.io/ios/app/peptide-tracker-pepflow/id6740525224/reviews)** | [4.3 (174 ratings)](https://appshunter.io/ios/app/peptides-calculator/id6744431355/reviews) |
| Number of ratings | **439** | 174 |
| Positive reviews | **79.3% of reviews** | 54.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 181 MB | 78 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [keinois OU](https://appshunter.io/developer/1597616328) | [Sphnix, Inc](https://appshunter.io/developer/1796901749) |

## What reviewers say

### Peptide Tracker

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


### Peptides Calculator

[App page](https://appshunter.io/ios/app/peptides-calculator/id6744431355)

This app helps users log, organize, and manage their peptide preparation process. It offers features for calculating reconstitution details, saving vial records, and accessing educational content. An optional subscription unlocks unlimited entries, enhanced tracking, and multi-device sync.

**Highlights:** Log and calculate reconstitution details, Save and organize vial records, Browse peptide reference library, Access educational videos and articles, Track weight over time, Multi-device sync (Pro)

**Features:** macOS Compatibility, Family Sharing, Apple Wallet, Apple Watch app, iMessage stickers, Vision Pro support, iPhone Duo support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $9.99 | per month |
| Family Monthly Premium Access | $14.99 | per month |
| Premium Plus | $14.99 | per month |
| Premium Plus Family (Montly) | $19.99 | per month |
| Pro Loyalty Yearly | $54.99 | per year |
| Yearly Premium Access | $99.99 | per year |
| Premium Plus Loyalty Yearly | $99.99 | per year |
| Family Yearly Premium Access | $149.99 | per year |
| Premium Plus (Yearly) | $149.99 | per year |
| Premium Plus — Family (Yearly) | $199.99 | per year |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to save vial info
- 👍 Nicely set up and laid out
- 💡 Streaks and last taken feature

**What reviewers complain about**

- 🐛 Lost access to previous peptide calculations
- 🐛 Unable to update streaks and last taken
- 🐛 Unable to record when a dose was taken

**Reported bugs**

- All vials disappeared after an update
- Unable to find how to update streaks and last taken

**Requested features**

- Add shot tracker to record when a dose was taken
- Allow editing of vial information and dosing
- Add option to set cycle length in weeks, not just days
- Allow changing dose for different weeks when titrating


## Frequently asked questions

### Is Peptide Tracker free?

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

### Is Peptides Calculator free?

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

### Which has better reviews, Peptide Tracker or Peptides Calculator?

Peptide Tracker is rated higher. Peptide Tracker averages 4.8 out of 5 from 439 ratings, while Peptides Calculator averages 4.3 from 174 ratings.

### Do Peptide Tracker or Peptides Calculator have ads?

Neither Peptide Tracker nor Peptides Calculator shows ads.

### Which is updated more often, Peptide Tracker or Peptides Calculator?

Peptide Tracker ships an update fortnightly, and Peptides Calculator every 5 days. Most recently, Peptide Tracker was updated on October 28, 2026 and Peptides Calculator on October 28, 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.*