# 集中タイマー vs Pocket Hourglass Timer

The clearest difference is in-app purchases: 集中タイマー at none against Pocket Hourglass Timer's 1. Pocket Hourglass Timer's advantage is update cadence (every 3 days vs every 9 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Pocket Hourglass Timer sells 1 one-off in-app purchase. 集中タイマー asks for nothing beyond the download.

集中タイマー ships an update every 9 months, Pocket Hourglass Timer every 3 days. The most recent releases landed on August 13, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 集中タイマー | Pocket Hourglass Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Every 3 days** |
| Size | 28 MB | 73 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kousaka Kirino](https://appshunter.io/developer/1037180476) | [HARASHOW Interactive](https://appshunter.io/developer/356148278) |

## What reviewers say

### 集中タイマー

[App page](https://appshunter.io/ios/app/id6446185573)

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

**In-app purchases:** none


### Pocket Hourglass Timer

[App page](https://appshunter.io/ios/app/pocket-hourglass-timer/id6529540527)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.49 | one-time |


## Frequently asked questions

### Is 集中タイマー free?

集中タイマー is free to download, with no in-app purchases.

### Is Pocket Hourglass Timer free?

Pocket Hourglass Timer is free to download, with in-app purchases available.

### Do 集中タイマー or Pocket Hourglass Timer have ads?

Both 集中タイマー and Pocket Hourglass Timer show ads.

### Which is updated more often, 集中タイマー or Pocket Hourglass Timer?

集中タイマー ships an update every 9 months, and Pocket Hourglass Timer every 3 days. Most recently, 集中タイマー was updated on August 13, 2026 and Pocket Hourglass Timer on September 17, 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.*