One Line Together is provided by WXinStudio. This policy describes information handling in the current app. Effective and last updated: October 25, 2026.
No account is required. The app has no advertising, third-party analytics or tracking SDKs, or developer-operated game-data server. Drawings, progress and preferences stay on your device and are not automatically uploaded to us by the app.
The app processes drawing strokes, artwork, scores, stage stars and unlock progress locally, along with challenge codes you enter. Saved artwork may include a save date, stage and challenge target. It also stores tutorial completion, first-use time, completed-round counts, play dates and review-request history to avoid frequent rating prompts. These records are not used for advertising or cross-app tracking.
Only when you choose to share does the app pass your selected artwork, score card or invitation text to the iOS share sheet. Your chosen recipient or service handles that content under its own rules. Challenge codes contain a rules version, stage and target score, not an account or device identifier. Tapping Copy challenge code writes the code to the system clipboard; the app does not read it in the background. Deleting local artwork does not delete copies you have shared.
Saving to Photos is used only when you choose Save Image in the system share sheet, with add-only permission requested if required by the system. The app does not browse your photo library or use your camera, microphone, location or contacts. Apple handles ratings in its system interface. The app does not receive your submitted star rating or confirmation that you completed a review.
Artwork and progress normally remain on your device until you delete the artwork or delete the app. You can delete saved drawings in the gallery. Deleting the app removes its local data; Offload App keeps documents and data and is not the same as deletion. Depending on your system settings, local app data may be included in Apple-managed device backups and restored from a backup. Manage backup copies in your system backup settings. We cannot remotely access or delete your local app data, backups, Photos items or shared copies.
If you email us, we receive your email address, message and any attachments you choose to provide, solely to handle your inquiry, troubleshooting or privacy request. Please avoid unnecessary sensitive information. Support correspondence is retained until the matter is resolved and further follow-up is no longer needed, unless retention is legally required. You may request deletion of support correspondence at the address below. Email service providers also process message delivery and storage.
The app has no account system, does not actively collect children’s personal information through gameplay, and contains no advertising tracking. Apple’s App Store, system sharing and services you select have their own privacy policies. This page includes no analytics scripts, advertising, cookies or external fonts. To deliver the page and maintain security, the hosting service may process basic access logs such as IP address, access time and browser information, depending on the actual hosting configuration.
If the app’s information practices change, we will update this policy and date and provide additional notice or request consent where needed. For privacy questions, contact WXinStudio: