Rui Kowase

How this developer operates

• Carrier title Gun Sounds holds 34% of the developer's installs
• Hit rate 0% of launches reach 100k installs (0 of 4 at least 30 days old)
• Release rhythm a new app every ~42 days on average
• Maintenance 4 of 4 apps updated in the last 90 days · last update 24 days ago · updates every ~8 days

Same company, other accounts · 小和瀬 塁

Developer names that share this developer's legal name, contact e-mail or website in the store.

Listings that changed hands

App	Direction	Counterparty	When
Fart Sounds Machine: Prank App	renamed	小和瀬 塁	Nov 12, 2026
Emergency Siren Sounds	renamed	小和瀬 塁	Nov 11, 2026
Donkey Sounds & Ringtones	renamed	小和瀬 塁	Nov 11, 2026
Cow Sounds	renamed	小和瀬 塁	Nov 11, 2026
Cat Sounds: Meow for Ringtones	renamed	小和瀬 塁	Nov 10, 2026
Car Sounds: Engine, Ringtones	renamed	小和瀬 塁	Nov 10, 2026
Baby Sounds	renamed	小和瀬 塁	Nov 10, 2026
Animal Sounds: Ringtones+Facts	renamed	小和瀬 塁	Nov 9, 2026
Ambulance Sirens: Ringtone	renamed	小和瀬 塁	Nov 9, 2026
Whistle Sounds	renamed	小和瀬 塁	Nov 8, 2026
Vibration: Strong Vibrator App	renamed	小和瀬 塁	Nov 7, 2026
Simple Metronome & Tuner	renamed	小和瀬 塁	Nov 6, 2026
School Bell Sounds: Ringtone	renamed	小和瀬 塁	Nov 6, 2026
Scary Horror Sounds	renamed	小和瀬 塁	Nov 6, 2026
Rooster Sounds	renamed	小和瀬 塁	Nov 6, 2026
Police Siren: Ringtone	renamed	小和瀬 塁	Nov 5, 2026

All apps

App	Style	Rating	Installs	Released
Gun Sounds	Entertainment	—	10,000+	Feb 5, 2025
Old Telephone Ringtones	Music & Audio	—	10,000+	Oct 3, 2024
Fire Truck Sirens	Entertainment	—	10,000+	Nov 18, 2024
Morning Alarm Clock Ringtones	Personalization	—	5,000+	Jan 17, 2025