Cat Vocabulary privacy policy
Updated October 30, 2026. Developer: YIBING LIN. Contact: [email protected].
For parents
Cat Vocabulary is a tool for parents to use with children. Parents choose what to enter, which online services to connect, and when to share. Real child names are not required. It has no advertising, cross-app tracking or third-party behavioral analytics.
Local records and credentials
Words, selected scene photos, generated conversations, stories, child nicknames, target languages and review feedback are stored on your device. The developer does not operate a server that receives this vocabulary library. Model keys, ChatGPT sign-in credentials and optional WebDAV credentials are stored using the operating system’s secure storage and excluded from exported family backups.
Photos, text and AI generation
Only selected photos or captured images are used; the app does not scan your photo library. Before generation, photos are resized and re-encoded as JPEG to remove original EXIF metadata. Saved scenes retain the re-encoded image for later recall. When you tap Generate or ask for a new conversation or story, the relevant selected photo, scene text, target language and, where applicable, saved words or scene text go directly to your chosen provider. The provider may process normal network information and retain content according to its own policies. Saved content can be reviewed and deleted by a parent.
Supported model connections include OpenAI, Google, Anthropic and Alibaba Cloud. ChatGPT sign-in uses OpenAI’s authorization service. Your provider’s policies, permissions and charges apply independently.
Microphone, recognition and playback
Voice input is optional and starts when a parent selects it. System recognition may use Apple or the device’s Android recognition service and may require a network connection. If you select Doubao streaming recognition, microphone PCM is sent while you speak; Deepgram receives the recording after you finish. Online recognition and playback use separately configured keys. Recordings are held temporarily in memory, are limited to 60 seconds, and are not included in the vocabulary library, backups or family sharing. Cancellation or leaving the input stops recording and closes online work; previously sent audio remains subject to the provider’s retention policy.
Default playback uses the device’s speech service. Optional cloud playback sends the selected words or sentences to the selected speech provider. See Volcengine privacy and Deepgram privacy. You can return to system services and remove saved cloud keys in settings.
Backups and family sharing
Exported backups include photos, conversations, stories and child profiles, so share them only with people you choose. Manual WebDAV sync uploads the family document to your configured HTTPS server. The app does not provide a hosted family account or background family sync. Those servers and file destinations follow their own policies. Merge currently preserves records; deleting a record on one device does not delete other devices’ copies.
Delete entries inside the app to remove them from the local library. Uninstalling removes the app’s local data; operating system secure storage may retain credentials, so remove keys in settings first if desired. Exported files and WebDAV copies must be deleted separately at their destination. Contact your AI provider about deletion of content already sent to that provider.
Website and support
This static website has no registration form or behavioral analytics scripts. Hosting services process normal connection data to deliver pages. If you email support, we receive the email address and content you send, only to address your request. Avoid sending private child photos, API keys or sign-in credentials. We update this policy when our data practices change.