# Immortals Bryan Johnson vs Protocol Stack Tracker

The clearest difference is device support: Immortals Bryan Johnson at 3 against Protocol Stack Tracker's 1. Immortals Bryan Johnson also leads on iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Immortals Bryan Johnson | Protocol Stack Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (21 ratings)](https://appshunter.io/ios/app/immortals-bryan-johnson/id6761206137/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free | — |
| Size | 93 MB | 6 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Blueprint Bryan Johnson](https://appshunter.io/developer/1736333773) | [DAVIS CABRERA](https://appshunter.io/developer/6790016532) |

## What reviewers say

### Immortals Bryan Johnson

[App page](https://appshunter.io/ios/app/immortals-bryan-johnson/id6761206137)

This app helps you create a personalized longevity plan based on your health data and research. Connect wearables, upload biomarkers, and receive insights to optimize your well-being. It's free and adapts to your unique biology.

**Highlights:** Personalized longevity protocol, Connects to multiple wearables, Uploads health biomarkers and labs, AI-driven health insights, Expert-designed algorithm, Interactive Q&A with BryanAI

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

**In-app purchases:** none


### Protocol Stack Tracker

[App page](https://appshunter.io/ios/app/protocol-stack-tracker/id6790016530)

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

**In-app purchases:** none


## Frequently asked questions

### Is Immortals Bryan Johnson free?

Immortals Bryan Johnson is free to download, with no in-app purchases.

### Is Protocol Stack Tracker free?

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

### Do Immortals Bryan Johnson or Protocol Stack Tracker have ads?

Neither Immortals Bryan Johnson nor Protocol Stack Tracker shows ads.

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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.*