# Lightning（ライトニング） vs ERAI!

The clearest difference is in-app purchases: ERAI! at none against Lightning（ライトニング）'s 10. ERAI! also leads on update cadence (weekly vs every 44 months). Lightning（ライトニング）'s advantage is ads (none vs shown) and iOS requirement (8.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Lightning（ライトニング） sells 10 in-app purchases, starting at $6.99 per month. ERAI! asks for nothing beyond the download.

Lightning（ライトニング） ships an update every 44 months, ERAI! weekly. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Lightning（ライトニング） | ERAI! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lightning/id973769890/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 44 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 18 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DENTSU INC.](https://appshunter.io/developer/326362308) | [Kosuke Shimada](https://appshunter.io/developer/1529796493) |

## What reviewers say

### Lightning（ライトニング）

[App page](https://appshunter.io/ios/app/lightning/id973769890)

This lifestyle magazine app offers curated content on American culture, including fashion, cars, and hobbies. It provides a digital reading experience with subscription options and automatic downloads for new issues.

**Highlights:** American culture focus, Fashion and car content, Hobby and leisure features, Digital magazine format, Subscription options, Automatic download of new issues

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lightning（ライトニング） | $6.99 | per month |
| Lightning（ライトニング） | $19.99 | per 3 months |
| Lightning（ライトニング） | $39.99 | per 6 months |
| Lightning（ライトニング） 2015年5月号 Vol.253 | $3.99 | one-time |
| Lightning（ライトニング） 2015年7月号 Vol.255 | $3.99 | one-time |
| Lightning（ライトニング） 2016年3月号 Vol.263 | $3.99 | one-time |
| Lightning 2018年8月号 Vol.292 | $4.99 | one-time |
| Lightning 2018年9月号 Vol.293 | $4.99 | one-time |
| Lightning 2018年10月号 Vol.294 | $4.99 | one-time |
| Lightning 2018年11月号 Vol.295 | $4.99 | one-time |


### ERAI!

[App page](https://appshunter.io/ios/app/erai/id1529796491)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lightning（ライトニング） free?

Lightning（ライトニング） is free to download, with in-app purchases available.

### Is ERAI! free?

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

### Do Lightning（ライトニング） or ERAI! have ads?

ERAI! shows ads; Lightning（ライトニング） does not.

### Which is updated more often, Lightning（ライトニング） or ERAI!?

Lightning（ライトニング） ships an update every 44 months, and ERAI! weekly. Most recently, Lightning（ライトニング） was updated on October 10, 2026 and ERAI! on October 16, 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.*