Apps with estimates
0 of 30% of their apps have a 30-day estimate
takafumi katsurayama
iOS apps by takafumi katsurayama, with estimated downloads and revenue.
PublisherUpdated Oct 26, 2026
Avg. rating
4.71Weighted by number of ratings
Apps All 3 of their apps we track.
| App | Category | Downloads · 30D |
|---|---|---|
 StudyLive | オンライン自習室で勉強記録・勉強集中Education | Education | Downloads and revenue for apps outside the free top 300 are part of Pro |
 StudyLive Global | Study RoomEducation | Education | Downloads and revenue for apps outside the free top 300 are part of Pro |
| App | Category | Released | Downloads · 30D |
|---|---|---|---|
| StudyLive Global | Study RoomEducation | Education | Aug 17, 2026 | Downloads and revenue for apps outside the free top 300 are part of Pro |
 Soji | AI Disk CleanerDeveloper Tools | Developer Tools | Jul 9, 2026 |
Categories Share of their apps
- Education67%
- Developer Tools33%
About this data: every app of theirs we track. Downloads and revenue are AppTrendKit estimates, not the publisher's own numbers; ratings come from the App Store.