ストーンハッシュソリューション · Kawasaki, Kanagawa, Japan
STONEHASH SOLUTION builds and operates Remosse, a video-calling app for music lessons, and Livenue, a music player that brings a live venue feel to your own music. We apply our experience developing and operating these products to support real-time calling, audio processing, and web / iOS app planning, development, and improvement.
Remosse for online music lessons and Livenue for enjoying your music with a live venue feel. Both are available on the App Store.
Planning and implementation of real-time calling and audio processing, web / iOS development support, technical clarification, and product strategy.
You are a small team, exploring a new business, or still at the idea stage and want to move forward through conversation.
STONEHASH SOLUTION on this site is based in Japan and is not affiliated with the Singapore-based operator of stonehash.com.
Two apps built around music: connecting lessons and creating a live listening experience.
NOW ON APP STORE · Remosse
Music lessons that flow more smoothly.
A 1:1 video-calling app designed for online music lessons on iPhone and iPad. Built around sharing instrument sound and the teacher’s guidance.
For free trials and pricing, see the Remosse website.
NOW ON APP STORE · Livenue
Your music. A live venue feel.
An iPhone music player that adds venue ambience and crowd sounds to purchased music, CD imports, and audio files. Shape the live experience with venue and audience settings.
Arena is free with unlimited songs. Pro is a one-time purchase. Requires iOS 17 or later. Apple Music subscription tracks are not supported.
Remosse connects teachers and students in one-to-one online music lessons.
Remosse focuses on one host and one guest. Keeping lessons to two people simplifies joining and the call interface for music schools and private instruction.
Instrument sound can be suppressed as noise on general video calls. We continuously test and improve Remosse’s music lesson settings to help both performance and speech come through clearly.
Remosse focuses on sound for music lessons; Livenue shapes music playback with venue ambience. We apply experience from both to audio features and app development.
We develop and operate our own apps, from product concepts and UI design to implementation, App Store release, and ongoing improvement.
We help clarify requirements, define an MVP, and improve existing products using lessons from our own development work.
A few entry themes so it is easier to see what you might ask us to help with.
1:1 calls, interviews, lessons, advisory—experience design that includes real-time communication.
From clarifying the idea through first implementation and a learn-and-improve loop.
UI/UX, codebase hygiene, how to sequence features, and untangling technical blockers.
We apply experience from Remosse and Livenue in real-time calling, audio processing, and iOS development to help you
clarify plans, implement, and improve: a partner for starting small and growing deliberately.
Using stacks such as Agora, we support planning, implementation, and validation for web and mobile apps that include calling.
For small teams and startups: from requirements through implementation and iterative improvement in production.
So “what to build, how far to go” does not stay fuzzy, we bridge business intent and technical reality.
STONEHASH SOLUTION builds Remosse and Livenue in-house and provides technical support for clients.
We connect engineering and business carefully and care about how the product feels in real use.
Remosse / Livenue partnerships or development, services built around online calling,
web/mobile development, technical support, or product planning—please get in touch.
For help using the apps: Remosse support / Livenue support. This form is for development and partnership enquiries.
“Just exploring” or “still fuzzy” is fine.
We often start by helping you organize where you are today.
Scoped feature work or short technical support for an existing team—we can be flexible.
We can also talk under NDA after it is signed.
Even rough notes help: what you want to build, what is blocking you, your current team setup, and desired timing.