Yes, Sonolus is free to download on the Apple App Store.

Sonolus was developed by MACAU FOSFENES TECHNOLOGY CO., LTD.. Their website is https://apps.apple.com/us/developer/macau-fosfenes-technology-co-ltd/id1516590315?uo=2.

Sonolus: Pricing, Rankings & Reviews (iOS)

Name: Sonolus
Availability: InStock
Author: MACAU FOSFENES TECHNOLOGY CO., LTD.

Rankings

Category	Collection	Rank	Date
GAMES_MUSIC	top-free	#15	2026-03-12

About Sonolus

Explore the world of rhythm games, connect with other rhythm game lovers, create and share your own levels and replays, and more! Whether you are playing solo, together with other people, or competing against other people, there is a vibrant world of rhythm games waiting to be discovered!