Skip to content

About

A small team building focused mobile software, with an emphasis on usability and long-term maintenance.

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
Legal representative
Tang Li
Date of incorporation
23 December 2024
Registered address
Room A395, Room 122, Building 1, Warehouse, No. 23 Yiheng Road, Dongpu Dama Road, Tianhe District, Guangzhou, Guangdong, China
Business scope
Software and information technology services

Registration authority: Tianhe District Administrative Approval Bureau, Guangzhou. Licensed items, where applicable, are as published in National Enterprise Credit Information Publicity System.

Guangzhou Demo One Technology Co., Ltd was registered on 23 December 2024 in Tianhe District, Guangzhou. It is a limited liability company invested or controlled by a natural person. The legal representative is Tang Li.

We build software for people who need to keep a practice going. Our first product, Qinlv, is an iOS app for piano learners: it turns practice into a daily plan, logs time and focus, and stays simple when you look back.

We are a small company. Product and engineering are done in-house. Qinlv is in development and is not on the App Store yet; this site describes the direction being built.

Our registered business is software and information technology services. For partnerships, press, and verification, use tangli@demowan.com. Do not send passwords or verification codes. The public website is https://demowan.com. You may also reach us at tangli@demowan.com.cn; both domains are used by Guangzhou Demo One Technology Co., Ltd.