# Peptide Calculator vs Peptide Calc & Tracker

The clearest difference is update cadence: Peptide Calc & Tracker at every 5 days against Peptide Calculator's every 2 weeks. Peptide Calc & Tracker also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Peptide Calculator ships an update every 2 weeks, Peptide Calc & Tracker every 5 days. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Peptide Calculator | Peptide Calc & Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (424 ratings)](https://appshunter.io/ios/app/peptide-calculator-pepflow/id6740525224/reviews)** | — |
| Number of ratings | **424** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 133 MB | 37 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [keinois OU](https://appshunter.io/developer/1597616328) | [VAST FLOW, TOO](https://appshunter.io/developer/1754861329) |

## 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 |


### Peptide Calc & Tracker

[App page](https://appshunter.io/ios/app/peptide-calc-and-tracker-dosyne/id6777856423)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dosyne Pro | $4.99 | per 7 days |
| Dosyne Pro | $29.99 | per year |


## Frequently asked questions

### Is Peptide Calculator free?

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

### Is Peptide Calc & Tracker free?

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

### Do Peptide Calculator or Peptide Calc & Tracker have ads?

Neither Peptide Calculator nor Peptide Calc & Tracker shows ads.

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

Peptide Calculator ships an update every 2 weeks, and Peptide Calc & Tracker every 5 days. Most recently, Peptide Calculator was updated on October 19, 2026 and Peptide Calc & Tracker on October 10, 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.*