# ポケット手帳 vs Day

The clearest difference is in-app purchases: ポケット手帳 at none against Day's 1. ポケット手帳 also leads on iOS requirement (16.0 vs 18.5). Day's advantage is update cadence (every 3 days vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. Day sells 1 one-off in-app purchase. ポケット手帳 asks for nothing beyond the download.

ポケット手帳 ships an update weekly, Day every 3 days. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ポケット手帳 | Day |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 21 MB | 2 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kento Takise](https://appshunter.io/developer/1553271381) | [Kentaro Shirai](https://appshunter.io/developer/1619348769) |

## What reviewers say

### ポケット手帳

[App page](https://appshunter.io/ios/app/id6471104584)

**In-app purchases:** none


### Day

[App page](https://appshunter.io/ios/app/day-count/id6764541117)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Day-Count Premium | $0.99 | one-time |


## Frequently asked questions

### Is ポケット手帳 free?

ポケット手帳 is free to download, with no in-app purchases.

### Is Day free?

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

### Do ポケット手帳 or Day have ads?

Neither ポケット手帳 nor Day shows ads.

### Which is updated more often, ポケット手帳 or Day?

ポケット手帳 ships an update weekly, and Day every 3 days. Most recently, ポケット手帳 was updated on September 15, 2026 and Day on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*