# CheckTrendJ vs watoji

The clearest difference is ads: CheckTrendJ at none against watoji's shown. watoji's advantage is update cadence (every 6 weeks vs every 5 months) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CheckTrendJ ships an update every 5 months, watoji every 6 weeks. The most recent releases landed on October 1, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | CheckTrendJ | watoji |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 3 MB | 35 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Tatsuya Endou](https://appshunter.io/developer/397153169) | [THE CREATION OF JAPAN GENERAL INCORPORATED ASSOCIATION](https://appshunter.io/developer/1659336676) |

## What reviewers say

### CheckTrendJ

[App page](https://appshunter.io/ios/app/checktrendj/id397153166)

Discover trending keywords, book rankings, and video charts from Japan, all translated into English. Quickly check details of interesting topics on the web to stay updated on current Japanese trends.

**Highlights:** Trending keywords in Japan, Book ranking charts, Video ranking charts, English translations, Web detail lookup

**Features:** macOS Compatibility

**In-app purchases:** none


### watoji

[App page](https://appshunter.io/ios/app/watoji/id1659336464)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CheckTrendJ free?

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

### Is watoji free?

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

### Do CheckTrendJ or watoji have ads?

watoji shows ads; CheckTrendJ does not.

### Which is updated more often, CheckTrendJ or watoji?

CheckTrendJ ships an update every 5 months, and watoji every 6 weeks. Most recently, CheckTrendJ was updated on October 1, 2026 and watoji on September 22, 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.*