kirakira 隐私政策

When you intentionally select a video through the system Photos picker and open the Face Stickers or Face Cover feature, kirakira analyzes visible faces in that video on your device. For purposes of this policy, “face data” includes: (1) image frames containing faces in the video you selected; (2) detected face location and size (bounding boxes), detection confidence, and corresponding video timestamps; (3) pose points, such as the eyes, nose, and ears, that may be used temporarily to estimate a face location when ordinary face detection is insufficient; (4) image-feature and color descriptors generated temporarily from face regions to match the same face across consecutive frames of that video; (5) face thumbnails generated in memory so that you can choose which people to cover; and (6) the face tracks, sticker style, size, and frame-by-frame position adjustments that you select. Each numeric track ID is meaningful only within the current video draft and does not identify a person in the real world.

Ordinary dancer tracking may also generate, on the device, a pose-derived face or head box, confidence value, neck and shoulder coordinates, a compact head/upper-body color-appearance vector, and a full-body appearance vector whose image region may include the face. These values are used only to keep an anonymous dancer track stable within the current video draft. The full-body appearance model is not a face-recognition model, and the app does not compare this data with another video, another user, or a real-world identity.

All face analysis is performed on the device using Apple’s on-device Vision and AVFoundation technologies. Face data is used only to detect visible faces in the video, maintain their frame-by-frame positions within that same video, display thumbnails for your selection, render a sticker or soft blur over selected faces, save a recoverable local draft, and export the video that you choose to create. kirakira does not use face data for authentication, real-world identity recognition, recognition across videos or sessions, advertising, marketing, profiling, sensitive-attribute inference, or machine-learning model training. The app does not access Face ID data, TrueDepth data, or facial depth maps, and it does not create a face database capable of identifying real people.

kirakira does not transmit the selected video, face images or thumbnails, face boxes or tracks, pose points, image-feature descriptors, person-appearance vectors, or sticker selections to the developer’s servers, the credits server, the product-analytics server, any cloud AI service, or any third party, and it does not sell or rent this data. If you expressly enable optional product analytics, the app may record only the allow-listed event that the Face Stickers tool was tapped. That event contains no video, face image, face count, location, track, selected person, feature descriptor, thumbnail, or sticker content and therefore is not face data.

During Face Stickers analysis, pose points, Vision image-feature representations, and the face/shoulder color descriptors used by that feature exist temporarily in memory and are released when that analysis finishes; they are not written to a file. Face thumbnails are held in memory only while the current project is open and are not stored as separate image files. If a draft is reopened, the thumbnails are regenerated from the draft video stored locally on the device.

To restore unfinished editing, kirakira stores the current draft’s local source-video copy, face-track data (video timestamps, bounding boxes, and confidence values), sticker settings, and the head/body pose and appearance vectors described above in the app’s sandboxed Application Support directory on the device. The draft is excluded from system backups. No face data is stored on kirakira’s servers. A finished video is saved to the system Photos app only when you request it and grant permission; its retention and any iCloud Photos synchronization are controlled by your system settings.

Temporary image-feature descriptors and pose points are retained only until the current face-analysis operation ends. In-memory thumbnails are retained until the project is closed or the app process ends. A recoverable local draft has no fixed calendar retention period. It remains until you close the current video and start over, successfully replace it with another video, or choose Delete App in iOS. Those actions remove the draft’s local source-video copy, face tracks, and associated editing settings from kirakira’s sandbox. The iOS Offload App feature may preserve documents and data, so choose Delete App if you want the local draft removed with the app. Local rendered exports in kirakira’s sandbox remain until you delete the app. Deleting a draft or the app does not delete the original or exported videos in the system Photos app; you must delete those separately in Photos. Because kirakira never receives face data, the developer cannot access or remotely delete this device-only data from a server.

You may decline to use Face Stickers, revoke Photos access in iOS Settings, close the current video to delete its draft, import a replacement video, manage original and saved videos in Photos, or choose Delete App to remove kirakira’s sandbox data. Revoking Photos access prevents further access to content unless you select and authorize it again.

Data controller and developer: Yiming Chen
Contact: lucky20000406@icloud.com
App filing number: 桂ICP备2026003159号-2A