Solar Book icon

Solar Book

株式会社ビクセン

⬇ 10,000+ downloads

Est. actual: 17,754

Free

Released: Mar 7, 2016

No in-app purchases

No ads

Signals

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

📈Last 7 days +47 installs — 2% faster than the week before (+46) · 5/day since Oct 9
🏆Among Education apps top 13% by installs gained this week (1860 peers growing)
🛠Updates dormant · updated 322 days ago

Installs since launch

+145 installs since Oct 9

Update history

2.1.2 Dec 26, 2025 · seen Oct 17, 2026

Some bugs have been corrected.

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

Solar Book is an education app by 株式会社ビクセン with 10,000+ downloads (about 18K estimated). +47 installs in the last 7 days. Released Mar 7, 2016. Install growth, rank history, SDKs and ad networks.

From the store listing: “The Solar Book is an app for smart-phones and tablets for a solar eclipse.”