OnceClean Support
For help, email [email protected] with your device model, iOS or iPadOS version, app version, the screen you were on, and the steps that led there. Please do not send private photos or screenshots that contain personal content; a short description is enough.
Photo access
OnceClean needs photo library access to audit anything. If you see the limited-access screen, grant full access from iOS Settings > Privacy & Security > Photos > OnceClean, or use the in-app path to change it. With limited access the app can only audit the selected items, and some workflows stay unavailable. If access is denied, scanning, review, and deletion cannot run at all.
Scanning, grouping, and speed
A first full scan of a large library takes the longest; later scans reuse local fingerprints and an incremental scan only looks at photos added since the last run, which is faster. Keep the app in the foreground while the first scan runs, and leave the device plugged in for very large libraries. If a scan appears to stop, close and reopen the app: local progress is preserved.
Review and deletion
Review is grouped one group at a time. Applying a recommendation moves the chosen photos into the in-app pending-deletion tray; nothing leaves your library until you confirm the final deletion. Confirmed deletions go through PhotoKit into iOS Recently Deleted, so restoring a photo is done in Photos > Albums > Recently Deleted, within the recovery window the system provides.
Free limit, purchase, and restore
The free version limits deletion to 50 photos per scan run; the counter resets on a new scan run. One lifetime purchase, not a subscription, unlocks unlimited deletion, recommended batch processing, natural-language filtering, and incremental scanning. Purchases are handled by Apple: if the unlock does not appear after purchase, tap Restore Purchases in the app, confirm you are signed in with the same Apple Account, then restart the app. Refunds are handled by Apple at reportaproblem.apple.com.
Privacy questions
Photo analysis, fingerprints, decisions, and reports stay on the device, and photo content is never uploaded. The app keeps working offline. See the Privacy Policy for the full description of what is stored locally and what is not collected.
Reporting a problem
When something goes wrong, include what you expected, what happened instead, and whether the device was offline. If the issue involves a specific group or category, say which category and roughly how many photos were involved. That is usually enough to reproduce it without sending any of your photos.
一次清支持
如需帮助，请把设备型号、iOS/iPadOS 版本、App 版本、出现问题的页面和复现步骤发送到 [email protected]。请不要发送包含个人内容的私人照片或截图，简单描述即可。
照片权限
一次清必须有照片库权限才能审计。如果看到「仅选定照片」的提示，可以在 iOS「设置 > 隐私与安全性 > 照片 > 一次清」中改为完整访问，也可以使用 App 内的入口调整。使用「仅选定照片」时，App 只能审计被选中的内容，部分流程不可用；如果权限被拒绝，扫描、复核和删除都无法进行。
扫描、分组与速度
照片库很大时，第一次完整扫描最耗时间；之后的扫描会复用本地指纹，增量扫描只处理上次之后新增的照片，因此更快。首次扫描期间请让 App 保持在前台，照片很多时建议插上电源。如果扫描看起来停住了，关闭并重新打开 App 即可，本地进度会保留。
复核与删除
复核按组进行，一次只看一组。应用推荐后，选中的照片会进入 App 内的待删托盘；在你最终确认之前，照片不会离开照片库。确认删除会通过 PhotoKit 进入 iOS「最近删除」，需要在「照片 > 相簿 > 最近删除」中、于系统给出的恢复窗口内恢复。
免费额度、购买与恢复
免费版本每次扫描最多删除 50 张，开始新的扫描会重置计数。一次买断（非订阅）解锁不限量删除、推荐批量处理、自然语言筛选和增量扫描。购买由 Apple 处理：如果购买后没有解锁，请在 App 内点击「恢复购买」，确认使用同一个 Apple 账户登录后重启 App。退款请在 reportaproblem.apple.com 向 Apple 申请。
隐私相关疑问
照片分析、指纹、决定和报告都留在设备上，照片内容不会上传，App 离线也能使用。完整的本地保存与不收集说明见隐私政策。
反馈问题
遇到问题时，请说明你期望发生什么、实际发生了什么，以及当时是否离线。如果问题与某个分组或分类有关，请说明分类名称和大概涉及多少张照片。通常这些信息就足够定位，无需发送任何照片。