Privacy Policy
Last updated: October 4, 2026
This policy explains how 杭州同鸣科技有限公司 (Hangzhou Tongming Technology Co., Ltd., "we" or "us") handles information when you use the Tuji macOS application, visit Tuji.app, make a purchase, activate a license, or contact us.
1. Local Content and System Permissions
Tuji captures screenshots, edits images, and recognizes text on your device. The application does not automatically upload screenshots, images, text you enter, or recognized text. It does not collect application usage analytics, performance reports, or error reports.
Tuji needs the relevant macOS permissions to carry out actions you initiate:
- Screen Recording: To access screen content and capture screenshots.
- File or Folder Access: To read images you select or save files.
You can manage the relevant permissions in macOS System Settings. Denying or revoking a permission may prevent the related feature from working. Content you choose to share, send, or save to a synced folder is handled by the corresponding action and service, rather than automatically uploaded by Tuji.
2. Purchases and License Activation
Purchases from our website support options such as Alipay, WeChat Pay, and Paddle, as shown on the purchase page. Other sales channels offer their own payment methods. Payment providers and sales channels handle information needed to complete transactions under their own privacy policies. Please review the relevant notices when purchasing. If you use Paddle, see its Privacy Policy.
For website purchases, we receive your email address to bind your license. When you activate the direct-download edition, we record a hashed device ID and associate it with the license to verify how many devices are activated at the same time. The device ID is not directly associated with an order, but because it is linked to a license, it is not fully anonymous.
This information is used to provide license binding and activation after purchase. Information handling for purchases and authorization through other channels is described in those channels' privacy notices.
3. Update Checks and Network Requests
In addition to actions such as purchasing and activation, Tuji connects to check for new versions. Update check requests cannot be disabled within the application. You can disable new-version notifications, but doing so does not stop the check requests. Update checks are not used for application usage analytics.
When you visit the website or send network requests such as update checks or activation requests, the corresponding server receives your IP address. Server access logs may also record it. This is separate from uploading screenshots or collecting application usage analytics.
4. Website Analytics and Cookies
Tuji.app uses a self-hosted Umami instance to understand website usage. Website analytics data is stored in China and deleted periodically. These analytics cover website visits only and do not collect activity within the Tuji application.
The website also uses a cookie when needed to remember your language choice. You can clear or restrict cookies in your browser settings, but the website may then be unable to remember your language preference.
5. Retention and Your Rights
When you email us for a refund or support, we receive your email address and the information you choose to provide so we can respond and handle your request. Please avoid sending sensitive information unrelated to the issue.
We retain information only for as long as needed for its stated purpose: license binding and activation information supports ongoing license services, correspondence is used to handle your requests, and website analytics data is cleared periodically. Where the law requires further retention, those requirements apply. Personal information that is no longer needed and is not subject to a legal retention requirement is to be deleted or anonymized.
You may use the contact email in this policy to request access to, a copy of, correction of, or deletion of your personal information in accordance with applicable law. Where we process your personal information based on your consent, you may withdraw that consent. We will verify and handle your request as required by law.
6. Contact and Policy Updates
For questions about this policy or to exercise your rights, contact tuji.app@tominlab.com.
We will show an updated date on this page when this policy changes. Important changes to personal information handling will be communicated through the website, in-app notices, or another reasonable method, and we will obtain any consent required by law. Visiting the website or using the application does not by itself constitute blanket consent to all personal information processing.