楽天Kobo - 電子書籍の読書アプリ
楽天Kobo - 電子書籍の読書アプリ is a free iOS app in the Book category, published by Rakuten Kobo Inc. It was first released on 18 Apr 2013, 13 years ago. Its developer shipped 3 updates in the 90 days to 22 Oct 2026; the latest, version 10.9.0, came out on 30 Sep 2026.
楽天Kobo - 電子書籍の読書アプリ reached #32 in the Top Free Books chart in Japan on 2 days, most recently on 6 Aug 2026. In the last 30 days it was in the top 50 every day, with a best of #37 on 2 Oct 2026. It stood at #38 on 22 Oct 2026, up 4 places from a week earlier. In Japan it holds a 4.45 average across 57,720 ratings, 31 more than a week earlier. GameQuant records its ratings and store listing every day in 1 country.
Charts checked every day · no missing days in the record
Latest data: · updated every morning
楽天Kobo - 電子書籍の読書アプリ downloads and revenue in Japan · September 2026
Estimates for this country only, not worldwide
iPhone & iPad downloads
Japan · Sep 2026
iPhone & iPad revenue
Japan · Sep 2026
楽天Kobo - 電子書籍の読書アプリ: Top Free · Books · Japan · last 30 days
1 = top of the chart · best rank recorded each day
Source: GameQuant, https://gamequant.io/app/ios/627457804/kobo
<iframe src="https://gamequant.io/embed/ios/627457804?country=jp&range=30" width="640" height="400" style="max-width:100%;border:0" loading="lazy" title="楽天Kobo - 電子書籍の読書アプリ: rank chart by GameQuant"></iframe><br><small>Source: <a href="https://gamequant.io/app/ios/627457804/kobo">GameQuant</a></small>
Free to use in articles, reports and posts with this credit and a link to this page. Embed shows the live chart with a range switch.
Rating distribution · Japan
share of all ratings · 22 Oct 2026
| 5 stars | 68% | |
|---|---|---|
| 4 stars | 18% | |
| 3 stars | 8% | |
| 2 stars | 2% | |
| 1 star | 4% |
Rank by country
Top Free · Books · best rank on 22 Oct 2026
| Country | Rank | 7-day change | Best, 90 days | Ratings |
|---|---|---|---|---|
| Japan |
38 | up 4 | 32 · 6 Aug | 57,720 |
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Also popular in Japan
Rank in Japan on 22 Oct 2026
