Practice plans
Turn a piece or a technique goal into what to practice today, so the next step is waiting when you open the app.
Guangzhou · Software
Software for
quieter piano practice
Guangzhou Demo One Technology Co., Ltd is a software company registered in Guangzhou. We are building Qinlv, an iOS app for piano learners.
Public company details
Use these details to verify the legal entity. They are meant to match our business registration.
- Legal name
- 广州德默顽信息科技有限公司
- English name
- Guangzhou Demo One Technology Co., Ltd
- Unified Social Credit Code
- 91440106MAE7QCHR2P
- Registered address
- Room A395, Room 122, Building 1, Warehouse, No. 23 Yiheng Road, Dongpu Dama Road, Tianhe District, Guangzhou, Guangdong, China
- tangli@demowan.com
- Date of incorporation
- 23 December 2024
- Business scope
- Software and information technology services
About
A small team building focused mobile software, with an emphasis on usability and long-term maintenance.
We build quiet learning tools: they should not interrupt attention during practice, and should offer a clear next step only when needed.
Our current product is Qinlv, an iOS app for piano learners. The company is registered in Guangzhou and operates in software and information technology services.
Company profile →琴律
琴律Qinlv
A practice planner and progress journal for piano learners.
Qinlv helps piano learners turn “what should I practice today” into a daily plan, and keep session length and focus notes so they are easy to review later. It is an iOS app designed and developed by Guangzhou Demo One Technology Co., Ltd. It is in development and is not yet on the App Store.
Qinlv is currently in development and is not yet available on the App Store. This page describes the product direction being built. It is not a promise of a release date or a final feature list.
Progress journal
Log session length and that day’s focus, as a dated journal instead of scattered notes.
Quiet focus
Fewer unrelated controls during practice, so attention stays on the piano.
Support & contact
For business inquiries, press, and user support for Qinlv, please email us. Do not send passwords or verification codes through this website.