# Stack Tracker AI vs Biohacking Tracker

The clearest difference is rating: Biohacking Tracker at 5.0 against Stack Tracker AI's 4.0. Biohacking Tracker also leads on update cadence (every 6 days vs fortnightly) and iOS requirement (15.1 vs 26.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Stack Tracker AI sells 2 in-app purchases, starting at $1.99 per month and Biohacking Tracker sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Biohacking Tracker holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Stack Tracker AI ships an update fortnightly, Biohacking Tracker every 6 days. The most recent releases landed on June 4, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Stack Tracker AI | Biohacking Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/stack-tracker-ai/id6740147043/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biohacking-tracker-biohackr/id6745122843/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Freemium | Freemium |
| Size | 28 MB | 44 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [MD Apps, LLC](https://appshunter.io/developer/346437629) | [David Dzeveckij](https://appshunter.io/developer/1808720973) |

## What reviewers say

### Stack Tracker AI

[App page](https://appshunter.io/ios/app/stack-tracker-ai/id6740147043)

Effortlessly track, analyze, and optimize your supplement intake for improved wellness and fitness. Gain AI-powered insights, set flexible schedules, and visualize your progress with secure, private data storage.

**Highlights:** Seamless daily supplement tracking, AI-powered insights and trends, Flexible dose scheduling, Advanced progress visualizations, Private and secure data storage, Customizable supplement types

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $9.99 | per year |


### Biohacking Tracker

[App page](https://appshunter.io/ios/app/biohacking-tracker-biohackr/id6745122843)

This app helps you optimize your health and performance by tracking custom protocols, supplements, and key health metrics. Visualize your progress with data-driven charts to gain actionable insights and build consistency in your self-optimization journey.

**Highlights:** Custom protocol tracking, Supplement logging, Health metric tracking, Data visualization, Daily adherence checklist, Flexible scheduling

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Access (Monthly) | $5.99 | per month |
| Full App Access (Yearly) | $24.99 | per year |


## Frequently asked questions

### Is Stack Tracker AI free?

Stack Tracker AI is free to download, with in-app purchases available.

### Is Biohacking Tracker free?

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

### Which has better reviews, Stack Tracker AI or Biohacking Tracker?

Biohacking Tracker is rated higher. Stack Tracker AI averages 4.0 out of 5 from 2 ratings, while Biohacking Tracker averages 5.0 from 1 ratings.

### Do Stack Tracker AI or Biohacking Tracker have ads?

Neither Stack Tracker AI nor Biohacking Tracker shows ads.

### Which is updated more often, Stack Tracker AI or Biohacking Tracker?

Stack Tracker AI ships an update fortnightly, and Biohacking Tracker every 6 days. Most recently, Stack Tracker AI was updated on June 4, 2026 and Biohacking Tracker on September 14, 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.*