Nebula Book

Name: Nebula Book
Author: 株式会社ビクセン

株式会社ビクセン

⬇ 10,000+ downloads

Est. actual: 32,112

Free

No in-app purchases

No ads

Rated: Everyone

Signals

3 this week · 1 positive · 2 warnings All of this week's signals →

📈Last 7 days +26 installs — 68% slower than the week before (+81) · 4/day since Oct 9
🏆Among Education apps top 14% by installs gained this week (2475 peers growing)
🛠Updates dormant · updated 323 days ago

Installs since launch

+107 installs since Oct 9

Update history

2.1.13 Dec 26, 2025 · seen Oct 25, 2026

若干の不具合を修正しました。

Only the current version so far — new entries appear as the app ships updates.

Nebula Book is an education app by 株式会社ビクセン with 10,000+ downloads (about 32K estimated). +26 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.

From the store listing: “Nebula Book is an application that supports astrophotography of nebulae, star clusters, galaxies, etc. It was born from the voice of the user, "I don't know the position of the celestial body and the proper focal length for shooting." There are many celestial bodies such as nebulae, clusters, and galaxies that can be…”