# カシカン vs 40SEC

The clearest difference is in-app purchases: カシカン at none against 40SEC's 4. 40SEC's advantage is ads (none vs shown) and update cadence (weekly vs monthly). On price and device support there is nothing between them.

Both are free to download. 40SEC sells 4 one-off in-app purchases. カシカン asks for nothing beyond the download.

カシカン ships an update monthly, 40SEC weekly. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | カシカン | 40SEC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1553246735/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Size | 60 MB | 23 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [byus&co. 株式会社](https://appshunter.io/developer/1104161872) | [Daisaku Harasaki](https://appshunter.io/developer/1222906711) |

## What reviewers say

### カシカン

[App page](https://appshunter.io/ios/app/id1553246735)

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

**In-app purchases:** none


### 40SEC

[App page](https://appshunter.io/ios/app/40sec-todo/id6758890016)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Premium | $2.99 | one-time |
| Support Tip (Medium) | $2.99 | one-time |
| Support Tip (Large) | $5.99 | one-time |


## Frequently asked questions

### Is カシカン free?

カシカン is free to download, with no in-app purchases.

### Is 40SEC free?

40SEC is free to download, with in-app purchases available.

### Do カシカン or 40SEC have ads?

カシカン shows ads; 40SEC does not.

### Which is updated more often, カシカン or 40SEC?

カシカン ships an update monthly, and 40SEC weekly. Most recently, カシカン was updated on October 13, 2026 and 40SEC 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.*