# Biological clock vs Double Tap 10+

The clearest difference is in-app purchases: Biological clock at none against Double Tap 10+'s 1. Biological clock also leads on device support (3 vs 1) and iOS requirement (12.1 vs 17.0). Double Tap 10+'s advantage is ads (none vs shown) and update cadence (daily vs every 13 months). On price there is nothing between them.

Both are free to download. Double Tap 10+ sells 1 one-off in-app purchase. Biological clock asks for nothing beyond the download.

Biological clock ships an update every 13 months, Double Tap 10+ daily. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Biological clock | Double Tap 10+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 13 months | **Daily** |
| Size | 13 MB | 1 MB |
| Requires iOS | **12.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HAREPPO](https://appshunter.io/developer/604325074) | [Takayuki Hamuro](https://appshunter.io/developer/1875707249) |

## What reviewers say

### Biological clock

[App page](https://appshunter.io/ios/app/biological-clock-everywhere/id1099546322)

**Features:** Vision Pro support

**In-app purchases:** none


### Double Tap 10+

[App page](https://appshunter.io/ios/app/double-tap-10-plus/id6761082183)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Double Tap 10+ Pro | $1.99 | one-time |


## Frequently asked questions

### Is Biological clock free?

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

### Is Double Tap 10+ free?

Double Tap 10+ is free to download, with in-app purchases available.

### Do Biological clock or Double Tap 10+ have ads?

Biological clock shows ads; Double Tap 10+ does not.

### Which is updated more often, Biological clock or Double Tap 10+?

Biological clock ships an update every 13 months, and Double Tap 10+ daily. Most recently, Biological clock was updated on October 26, 2026 and Double Tap 10+ on October 25, 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.*