Software studio · Technology provider · Vietnam
Chung Đôi is the studio brand of Hộ kinh doanh Chung Đôi, a registered Vietnamese household business operating out of Buôn Ma Thuột and Hồ Chí Minh City, with this site at soloflag.com. We design, build and operate our own software products, and we provide our technology — including chatbot and messaging integrations — as a service to other small and medium businesses across Vietnam, acting on their behalf as a technology provider.
Two products built and operated by Hộ kinh doanh Chung Đôi today — one for businesses, one for consumers.
A multi-channel chatbot platform that helps small businesses automate customer conversations on Facebook Messenger, Instagram, Zalo and WhatsApp. Chat Support ships with prebuilt flows for booking, ordering, lead capture and after-sales support in Vietnamese.
chat.soloflag.com →An online wedding invitation product for Vietnamese couples — beautiful templates, RSVP collection, guest management and a shareable wedding website in minutes.
chungdoi.com →Acting on behalf of the businesses we serve
Hộ kinh doanh Chung Đôi operates as a technology provider. Businesses connect their own messaging accounts and channels to our platform, and we operate those integrations on their behalf — under their authorisation and their control.
We only access the data a business explicitly authorises, and we use it solely to provide and operate the services they have asked us to run. We do not sell personal data, and access can be revoked by the business at any time.
Each integration is operated in line with the terms and developer policies of the platforms it connects to, alongside our own privacy policy and data deletion process.
Chung Doi household business · Vietnam
Hộ kinh doanh Chung Đôi is a Vietnamese household business registered with UBND Phường Buôn Ma Thuột in April 2026, operating under the Chung Đôi name. Our business lines cover computer programming, software publishing, IT services and data processing, and this studio site is published at soloflag.com.
As a tech provider we build Chat Support, a chatbot platform other businesses connect to their own Meta Pages, Instagram accounts and WhatsApp Business numbers. We also operate the Chung Đôi wedding invitation product for consumers on the same engineering foundation.
All products are designed, built and operated in Vietnam — by a small team that cares deeply about local language, payments and customer behaviour.
For business enquiries, partnerships, platform access requests or anything else.
45 Trần Khánh Dư, Phường Buôn Ma Thuột, Tỉnh Đắk Lắk 630000, Việt Nam