# StackMyMed vs Protocol

The clearest difference is rating: StackMyMed at 4.5 against Protocol's 3.0. StackMyMed also leads on ads (none vs shown). Protocol's advantage is iOS requirement (16.0 vs 18.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. StackMyMed sells 1 in-app purchase, starting at $45.00 per year and Protocol sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

StackMyMed holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

StackMyMed ships an update every 9 days, Protocol fortnightly. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | StackMyMed | Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/stackmymed-supplement-scanner/id6757303618/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/protocol-hrv-tracker/id6762954264/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 39 MB | 58 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [Digital Publisher SIA](https://appshunter.io/developer/1797582085) | [AppEcho Labs ,LLC](https://appshunter.io/developer/1701185869) |

## What reviewers say

### StackMyMed

[App page](https://appshunter.io/ios/app/stackmymed-supplement-scanner/id6757303618)

Easily manage your supplements and medications by scanning labels to create an organized daily routine. Track adherence, review safety information, and build a personal stack of products. Connect with Apple Health for wellness context.

**Highlights:** Scan supplement and medication labels, Save products to personal stack, Build daily schedules and log doses, Review safety warnings and interactions, Track adherence and history, Optional Apple Health integration

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StackMyMed Premium Annual | $45.00 | per year |


### Protocol

[App page](https://appshunter.io/ios/app/protocol-hrv-tracker/id6762954264)

This app helps you scientifically test health claims about supplements, routines, and lifestyle changes. It guides you through 21-day experiments using your own body data and provides clear verdicts based on your metrics.

**Highlights:** Test health claims scientifically, Structured 21-day experiments, Integrates with Apple Health data, Provides clear 'Keep It' or 'Drop It' verdicts, Tests supplements, routines, and lifestyle changes, Data privacy and export options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protocol Pro (Monthly) | $14.99 | per month |
| Protocol Pro (Annual) | $119.99 | per year |


## Frequently asked questions

### Is StackMyMed free?

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

### Is Protocol free?

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

### Which has better reviews, StackMyMed or Protocol?

StackMyMed is rated higher. StackMyMed averages 4.5 out of 5 from 2 ratings, while Protocol averages 3.0 from 2 ratings.

### Do StackMyMed or Protocol have ads?

Protocol shows ads; StackMyMed does not.

### Which is updated more often, StackMyMed or Protocol?

StackMyMed ships an update every 9 days, and Protocol fortnightly. Most recently, StackMyMed was updated on September 21, 2026 and Protocol on September 11, 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.*