Only the current version so far — new entries appear as the app ships updates.
明るさ自動変更君 is a tools app by KG_Tools with 5,000+ downloads (about 5.5K estimated). +25 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “The screen brightness automatically adjusts to the ambient light. You can customize the brightness level and timing of the adjustments.”