About Particles and Waves
Particles and Waves is an independent product studio building practical small products across language learning, exam prep, fan activity, publishing, goods, and editorial content.
Operating profile
The studio maintains public store pages, privacy policies, and a support channel, and continues to improve products that are already available to users. This page uses current public information rather than unverified traction claims.
Operating areas
Mobile Apps
notaps Words, Oshi Room, Goods Creator and exam-prep apps for 24 Japanese qualifications support small daily loops for learning, tracking, fan activity and exam study.
Mobile Apps →Publishing
Multilingual Kindle books cover product building, AI workflows, and career thinking.
Publishing →Editorial
Articles document the thinking behind language learning and product development.
Editorial →Operating principles
- Publish information based on public products and verifiable links.
- Maintain privacy policies and contact channels for apps and services.
- Prioritize durable user experience over ads, noise, and unnecessary notifications.
Operator information
Particles and Waves
Address: Wizard Building 402, 1-4-3 Sengencho, Nishi-ku, Yokohama, Kanagawa 220-0072, Japan
Contact: support@particlesandwaves.org