# BioHacker vs DaysLeft

BioHacker and DaysLeft are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. BioHacker sells 2 in-app purchases, starting at $4.99 per month and DaysLeft sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

BioHacker ships an update every 2 weeks, DaysLeft weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BioHacker | DaysLeft |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/daysleft-life-countdown/id6774829617/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 36 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Mustafa Kandemir](https://appshunter.io/developer/1876140984) | [Alper Atis](https://appshunter.io/developer/6774829619) |

## What reviewers say

### BioHacker

[App page](https://appshunter.io/ios/app/biohacker-quit-caffeine-coach/id6766296425)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


### DaysLeft

[App page](https://appshunter.io/ios/app/daysleft-life-countdown/id6774829617)

Visualize your estimated remaining days and explore future lifestyle scenarios. Track habits, discover factors influencing longevity, and generate shareable life projection cards. Small changes today can create thousands of additional days tomorrow.

**Highlights:** Estimate remaining days, Explore future life scenarios, Discover longevity factors, Track habits and improvements, Generate shareable life projection cards, Unlock AI-powered insights

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DaysLeft Monthly Pro | $3.99 | per month |
| Lifetime Access | $14.99 | one-time |


## Frequently asked questions

### Is BioHacker free?

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

### Is DaysLeft free?

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

### Do BioHacker or DaysLeft have ads?

Neither BioHacker nor DaysLeft shows ads.

### Which is updated more often, BioHacker or DaysLeft?

BioHacker ships an update every 2 weeks, and DaysLeft weekly. Most recently, BioHacker was updated on October 31, 2026 and DaysLeft on November 5, 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.*