# PeptideFox vs Doserly

The clearest difference is update cadence: PeptideFox at weekly against Doserly's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PeptideFox sells 2 in-app purchases, starting at $2.99 per month and Doserly sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PeptideFox ships an update weekly, Doserly every 6 weeks. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PeptideFox | Doserly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/peptidefox/id6758572242/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free | — |
| Size | 14 MB | 113 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [HZ29 Inc.](https://appshunter.io/developer/1873736740) | [Viking Media Labs Inc.](https://appshunter.io/developer/1601241536) |

## What reviewers say

### PeptideFox

[App page](https://appshunter.io/ios/app/peptidefox/id6758572242)

This app simplifies peptide math and tracking for users managing peptide protocols. It calculates precise dosages, logs daily injections, and helps build custom protocols. Manage vial inventory and track multiple peptides simultaneously for optimal results.

**Highlights:** Reconstitution calculator, Daily dose and injection log, Custom protocol management, Vial inventory tracking, Supports various peptide compounds, Private and secure data storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $19.99 | per year |


### Doserly

[App page](https://appshunter.io/ios/app/doserly/id6759585905)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Doserly Pro - Monthly | $4.99 | per month |
| Doserly Pro - Yearly | $29.99 | per year |


## Frequently asked questions

### Is PeptideFox free?

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

### Is Doserly free?

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

### Do PeptideFox or Doserly have ads?

Neither PeptideFox nor Doserly shows ads.

### Which is updated more often, PeptideFox or Doserly?

PeptideFox ships an update weekly, and Doserly every 6 weeks. Most recently, PeptideFox was updated on September 9, 2026 and Doserly on September 20, 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.*