# なろう更新チェッカー vs RetrieverX

The clearest difference is in-app purchases: なろう更新チェッカー at none against RetrieverX's 3. なろう更新チェッカー also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). RetrieverX's advantage is update cadence (weekly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. RetrieverX sells 3 in-app purchases, starting at $1.99 per month. なろう更新チェッカー asks for nothing beyond the download.

なろう更新チェッカー ships an update every 3 months, RetrieverX weekly. The most recent releases landed on September 15, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | なろう更新チェッカー | RetrieverX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Size | 10 MB | 45 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Mitsutoshi Shibuya](https://appshunter.io/developer/1441785236) | [Daichi Hayashi](https://appshunter.io/developer/1822604563) |

## What reviewers say

### なろう更新チェッカー

[App page](https://appshunter.io/ios/app/id1549362000)

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

**In-app purchases:** none


### RetrieverX

[App page](https://appshunter.io/ios/app/retrieverx/id6747725272)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly | $1.99 | per month |
| Standard Monthly | $3.99 | per month |
| Premium Monthly | $4.99 | per month |


## Frequently asked questions

### Is なろう更新チェッカー free?

なろう更新チェッカー is free to download, with no in-app purchases.

### Is RetrieverX free?

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

### Do なろう更新チェッカー or RetrieverX have ads?

RetrieverX shows ads; なろう更新チェッカー does not.

### Which is updated more often, なろう更新チェッカー or RetrieverX?

なろう更新チェッカー ships an update every 3 months, and RetrieverX weekly. Most recently, なろう更新チェッカー was updated on September 15, 2026 and RetrieverX on August 25, 2026.

---

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