# WatchThisCube vs 15s War

The clearest difference is in-app purchases: 15s War at none against WatchThisCube's 3. 15s War also leads on update cadence (daily vs every 2 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. WatchThisCube sells 3 one-off in-app purchases. 15s War asks for nothing beyond the download.

WatchThisCube ships an update every 2 months, 15s War daily. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | WatchThisCube | 15s War |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/watchthiscube/id1547074856/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 0 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Brannan](https://appshunter.io/developer/1540210534) | [Kouhei Takagi](https://appshunter.io/developer/1385928405) |

## What reviewers say

### WatchThisCube

[App page](https://appshunter.io/ios/app/watchthiscube/id1547074856)

This app provides a convenient puzzle timer directly on your wrist. It features customizable sounds and haptic feedback for crucial countdowns, allowing for hands-free operation. Times are automatically saved for easy tracking of your performance.

**Highlights:** On-wrist puzzle timer, Sound and haptic feedback, Inspection time alerts, Automatic time saving, Stackmat timer functionality, Detachable watch use

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $0.99 Tip | $0.99 | one-time |
| $2.99 Tip | $2.99 | one-time |
| $4.99 Tip | $4.99 | one-time |


### 15s War

[App page](https://appshunter.io/ios/app/15s-war/id6759362898)

**In-app purchases:** none


## Frequently asked questions

### Is WatchThisCube free?

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

### Is 15s War free?

15s War is free to download, with no in-app purchases.

### Do WatchThisCube or 15s War have ads?

Neither WatchThisCube nor 15s War shows ads.

### Which is updated more often, WatchThisCube or 15s War?

WatchThisCube ships an update every 2 months, and 15s War daily. Most recently, WatchThisCube was updated on October 24, 2026 and 15s War on October 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.*