Use APKPure App
Get G-Controller old version APK for Android
Bluetooth GUNDAM LED Controller Unicorn(PG), Banshee(PG), MG LED
Bluetooth GUNDAM LED Controller (Bluetooth 4.0 BLE)
Unicorn, Banshee. All of Gundam LED compatibility (Gunpla PG, MG)
https://smartstore.naver.com/sd_mall