# iBurndownChart vs Biohacking Tracker

The clearest difference is in-app purchases: iBurndownChart at none against Biohacking Tracker's 2. iBurndownChart also leads on update cadence (daily vs every 6 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Biohacking Tracker sells 2 in-app purchases, starting at $5.99 per month. iBurndownChart asks for nothing beyond the download.

iBurndownChart ships an update daily, Biohacking Tracker every 6 days. The most recent releases landed on September 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | iBurndownChart | Biohacking Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biohacking-tracker-biohackr/id6745122843/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 6 days |
| Monetization | — | Freemium |
| Size | 5 MB | 44 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Martin Leonard Haufs](https://appshunter.io/developer/1651095844) | [David Dzeveckij](https://appshunter.io/developer/1808720973) |

## What reviewers say

### iBurndownChart

[App page](https://appshunter.io/ios/app/iburndownchart/id1661082802)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 iBurndownChart free?

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

### Is Biohacking Tracker free?

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

### Do iBurndownChart or Biohacking Tracker have ads?

Neither iBurndownChart nor Biohacking Tracker shows ads.

### Which is updated more often, iBurndownChart or Biohacking Tracker?

iBurndownChart ships an update daily, and Biohacking Tracker every 6 days. Most recently, iBurndownChart was updated on September 14, 2026 and Biohacking Tracker on October 2, 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.*