# Stacker vs Protocol Her

The clearest difference is rating: Stacker at 5.0 against Protocol Her's 4.8. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Stacker sells 1 in-app purchase, starting at $69.99 per year and Protocol Her sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Stacker holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 12 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Stacker ships an update every 4 days, Protocol Her every 6 days. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Stacker | Protocol Her |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/stacker-peptide-tracker/id6776001253/reviews)** | [4.8 (9 ratings)](https://appshunter.io/ios/app/protocol-her-peptide-tracker/id6778563718/reviews) |
| Number of ratings | **12** | 9 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 6 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 49 MB | 17 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Above Capital LLC](https://appshunter.io/developer/6776001255) | [DZ LABS LLC](https://appshunter.io/developer/6778563720) |

## What reviewers say

### Stacker

[App page](https://appshunter.io/ios/app/stacker-peptide-tracker/id6776001253)

This app helps you discover, dose, and track peptide protocols for various health goals. It offers curated stacks, personalized schedules, and progress tracking with reminders. Features include a reconstitution calculator and an AI assistant for protocol summaries.

**Highlights:** Personalized stack building, Curated stacks with dosage guides, Dose and progress tracking, Smart dosing schedules and reminders, Reconstitution calculator, Expert-vetted peptide library, AI peptide assistant (Pro)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacker Pro | $69.99 | per year |


### Protocol Her

[App page](https://appshunter.io/ios/app/protocol-her-peptide-tracker/id6778563718)

This app helps women track their peptide and GLP-1 protocols privately on their device. Log doses, cycle, measurements, and lab values, with optional reminders and Apple Health integration. Includes a unit conversion utility for reconstitution math.

**Highlights:** Private on-device logging, Dose and cycle tracking, Optional reminders, Apple Health integration (read-only), Measurement and photo timeline, Reconstitution math utility, PDF export for clinicians

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Annual | $69.99 | per year |


## Frequently asked questions

### Is Stacker free?

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

### Is Protocol Her free?

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

### Which has better reviews, Stacker or Protocol Her?

Stacker is rated higher. Stacker averages 5.0 out of 5 from 12 ratings, while Protocol Her averages 4.8 from 9 ratings.

### Do Stacker or Protocol Her have ads?

Both Stacker and Protocol Her show ads.

### Which is updated more often, Stacker or Protocol Her?

Stacker ships an update every 4 days, and Protocol Her every 6 days. Most recently, Stacker was updated on October 1, 2026 and Protocol Her on September 30, 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.*