LED SparkLED Spark is a consumer mobile app
What we offer
LED Spark is a creative utility that turns a phone into a glowing LED sign with templates, text styling, motion, full-screen playback, and media export. V1 creation and work management happen on-device.
LED Spark is free to start; v1 has no subscription or in-app purchase. The app does not display advertising, and we do not sell creations, displayed text, or exported content.
Official distribution
LED Spark is distributed only through its official Apple App Store and Google Play product listings.
An internal advertising operations tool
The tool connects only to Google Ads accounts owned and operated by YAYIN INTERNATIONAL. It is not a public product and is not used to manage advertising for clients or other companies.
Campaign Creation
Create App campaigns and their supporting campaign settings, budgets, and creative assets for LED Spark.
Campaign Management
View and update campaign status, budgets, assets, ad groups, and related campaign metadata.
Reporting
Retrieve campaign performance metrics so our internal team can monitor and improve advertising for LED Spark.
Restricted to authorized internal users
Who can use the tool
- Authorized YAYIN growth team members
- Authorized YAYIN engineering team members
- Approved contractors working under YAYIN's direction, if required
Who cannot use the tool
- LED Spark app users or subscribers
- Clients, agencies, or external advertisers
- The general public
Advertising data stays separate from on-device sign creations
The internal tool handles Google Ads campaign structures, creative assets, budgets, account metadata, and performance reports. It does not send LED Spark display text, creations, template choices, playback settings, or exported content, or subscription records to the Google Ads API.
YAYIN INTERNATIONAL TRADING LIMITED
Room 1401, 14/F., Wing On Centre, 111 Connaught Road Central, Hong Kong