Privacy Policy
Last Updated: August 7, 2026
Trending AI ("we") values your privacy. This policy explains how we collect, use, and protect your information when you use the Trending AI app and website (trendingai.cn).
Information We Collect
Basic Usage Data
We collect usage statistics through Aptabase, a privacy-focused analytics tool, including:
- App launch count
- Session duration
- Feature usage (e.g., filter selections)
These statistics do not contain direct identifiers such as your name or email, but they do carry the installation identifier described below, which allows usage from the same device to be linked across time.
User Preferences
The following preferences are stored locally on your device and are never uploaded to our servers:
- Theme mode (light / dark / system)
- Language preference
API Request Parameters
When you browse content, the app sends necessary request parameters (such as time period and programming language filters) to our servers to return the data you need. These parameters are not associated with any user identity.
Account Information
Signing in is optional — you can browse all rankings without an account, though AI chat and Pro features require one. When you choose to sign in, we handle authentication through Logto and store your email address along with public profile data from the third-party account (such as GitHub username, display name, avatar, and bio).
Installation Identifier
On first launch, the app generates a random installation identifier (install_id) used to distinguish installations, analyze retention, and enforce quotas. It reads no device hardware information (no IMEI, ANDROID_ID, etc.) and is regenerated after reinstalling — but until then it stays constant, so it can link your usage across time.
AI Feature Usage Records
When you use AI chat, detailed analysis, or deep research, we record the model used, credits consumed, and timestamps for billing and quota control. Deep research also saves the topic you submitted and the generated report so you can revisit it later.
Feedback
When you submit feedback, we record its content along with the email you optionally provide, the page URL, and your browser identifier. We do not record your IP address.
Information We Do Not Collect
- Precise geographic location
- Contacts, calendar, files, or other sensitive device data
- Payment information (Pro is handled via GitHub Sponsors; we never see your payment details)
Data Sharing
We do not sell or rent your personal data. To provide our service, we share necessary data with the following third parties:
AI Service Provider (OpenAI)
Content you send through AI features is transmitted to OpenAI to generate responses. We currently participate in OpenAI's data sharing program, which means your inputs and outputs are used by OpenAI to improve and train their models, and are retained on their servers for about 30 days. Please do not enter sensitive, confidential, or personal information in conversations.
Other Service Providers
- Logto: authentication
- Aptabase: usage statistics
- Resend: newsletter delivery (including open tracking)
- Cloudflare: server and database hosting
Data Security
All network communications are encrypted using HTTPS. Preferences such as theme and language are stored only on your device; account information and usage records are stored in Cloudflare's database.
Data Retention
- Account information: retained until you delete your account
- AI feature usage records and deep research reports: retained until you delete your account
- Feedback: retained for 12 months
- Usage statistics: retained per Aptabase's own policy
Your Rights
You may contact us via GitHub Issues or the in-app feedback form to request access to, export of, or deletion of your personal data.
Children's Privacy
Our app is not directed at children under 13, and we do not knowingly collect personal information from children.
Changes to This Policy
We may update this privacy policy from time to time. Updated policies will be posted on this page with a revised "Last Updated" date.
Contact Us
If you have any questions about this privacy policy, please contact us:
- Operator: WANG HAILONG (individual developer)
- Email: 81813780@qq.com
- GitHub: Open an Issue