# DoseRhythm vs Prof. Peptide Protocol Tracker

DoseRhythm and Prof. Peptide Protocol Tracker are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

DoseRhythm ships an update every 2 weeks, Prof. Peptide Protocol Tracker every 3 weeks. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | DoseRhythm | Prof. Peptide Protocol Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prof-peptide-protocol-tracker/id6761995269/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | — | Free |
| Size | 46 MB | 33 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Steve Olson](https://appshunter.io/developer/1876760883) | [Strength Cycle Studios, LLC](https://appshunter.io/developer/1892356312) |

## What reviewers say

### DoseRhythm

[App page](https://appshunter.io/ios/app/doserhythm/id6759083545)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prof. Peptide Protocol Tracker

[App page](https://appshunter.io/ios/app/prof-peptide-protocol-tracker/id6761995269)

Track peptide and GLP-1 doses, calculate reconstitutions, and manage complex protocols. Access a compound library, visualize estimated levels, and review research summaries. Your data remains private and on your device.

**Highlights:** Dose logging and reminders, Reconstitution calculator, 60+ compound library, Full protocol and stack support, Estimated compound levels visualization, AI research assistant, Results and trends tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is DoseRhythm free?

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

### Is Prof. Peptide Protocol Tracker free?

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

### Do DoseRhythm or Prof. Peptide Protocol Tracker have ads?

Neither DoseRhythm nor Prof. Peptide Protocol Tracker shows ads.

### Which is updated more often, DoseRhythm or Prof. Peptide Protocol Tracker?

DoseRhythm ships an update every 2 weeks, and Prof. Peptide Protocol Tracker every 3 weeks. Most recently, DoseRhythm was updated on September 22, 2026 and Prof. Peptide Protocol Tracker on September 15, 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.*