Support
We typically reply within 1–2 business days.
Email support
For all questions — bugs, license issues, refunds, or general help.
support@duijiaozhen.comCommon questions
Most answers about privacy, scope, payments, and platform support live on the FAQ.
Browse FAQ →Diagnostics
If you report a bug from the app, you can export a diagnostic bundle and attach it yourself. The export redacts local paths and does not include videos.
Send diagnostic report →About this product
Video Tagger is published by 上海对角阵科技有限公司, trading as Duijiaozhen at duijiaozhen.com. Payments are processed by Paddle as Merchant of Record. For privacy, terms, and refund policy, see the Privacy Policy, Terms / EULA, and Refund Policy.