隐私政策
Back Pro 是一款用于制作手机背板/背贴设计并导出打印文件的 iOS 应用。我们重视你的隐私。本政策说明 Back Pro 如何处理与你有关的信息。
我们收集什么
Back Pro 不会要求你注册账号，也不会向 Back Pro 自有服务器上传你的设计稿、照片、AI 贴纸或导出文件，不会出售或与第三方共享你的个人数据。
设备权限
- 相机：仅在你主动选择「拍照添加图片」时使用，用于把照片加入当前设计。
- 照片图库（读取）：仅在你主动从相册导入图片时使用。
- 照片图库（写入）：仅在你选择将导出的 PNG 保存到「照片」时使用。
除上述由你主动触发的系统流程外，Back Pro 不会在后台持续访问相机或相册。
本地存储
以下内容保存在你的设备上，用于恢复草稿与继续使用 App：
- 设计历史记录（图层、文字、Emoji、笔迹、背景色等）
- 你导入或生成的图片与贴纸资产
- 你创建的自定义机型尺寸
- 应用偏好设置（例如语言选择、终身版解锁状态）
卸载 Back Pro 会清除上述本地 App 数据。
设备端 AI 处理
当你使用 AI 贴纸功能时，主体识别与抠图主要在 iPhone 本地完成（基于 Apple 提供的设备端能力）。相关照片不会发送到 Back Pro 的云端服务器进行处理。
有限的网络访问
Back Pro 可能通过 HTTPS 拉取公开的机型目录 JSON（仅包含机型名称与尺寸参数，不包含你的个人内容）。除这类公开配置外，App 不会把你的设计内容上传到 Back Pro 服务器。
这并不意味着 App「完全离线」——系统服务（如 App Store 购买验证）仍可能按需联网。
应用内购买
Back Pro 终身版（商品 ID：com.richeng.backpro.lifetime）的购买、恢复购买与家庭共享由 Apple App Store 处理。Back Pro 仅在本地保存解锁状态，以便你在本设备上使用已购买的功能。
购买相关的账单与账户信息由 Apple 管理，Back Pro 无法访问你的 Apple ID 密码或完整支付信息。
iCloud 与系统备份
保存在设备上的 App 数据，可能随 iOS 系统备份（例如 iCloud 设备备份）一并备份。该边界由 Apple 系统策略决定，Back Pro 无法单独控制 iCloud 备份范围。
追踪与分析
Back Pro 不使用第三方分析 SDK、广告 SDK、跨 App 追踪标识符，也不进行定向广告追踪。
数据删除
- 你可以在 App 的「历史记录」中删除已保存的设计。
- 删除自定义机型时，App 会提示并清理关联的历史记录与资产。
- 从设备卸载 App 可清除本地存储的全部 Back Pro 数据。
儿童隐私
Back Pro 不面向 13 岁以下儿童主动收集个人信息。
政策更新
我们可能会更新本政策。更新后会在本页面修改「生效日期」。重大变更时，我们可能通过 App 内提示或其他合理方式告知你。
联系我们
如对本隐私政策有疑问，请联系：
Privacy Policy
Back Pro is an iOS app for creating phone back plate and back sticker designs and exporting print-ready files. We respect your privacy. This policy explains how Back Pro handles information related to you.
What We Collect
Back Pro does not require an account. It does not upload your designs, photos, AI stickers, or exported files to Back Pro servers, and it does not sell or share your personal data with third parties.
Device Permissions
- Camera: used only when you choose to take a photo and add it to your design.
- Photo Library (read): used only when you choose to import an image from Photos.
- Photo Library (write): used only when you choose to save an exported PNG to Photos.
Except for these user-initiated system flows, Back Pro does not continuously access your camera or photo library in the background.
Local Storage
The following data is stored on your device so you can restore drafts and continue using the app:
- Design history (layers, text, emoji, drawing paths, background color, and related metadata)
- Imported or generated image and sticker assets
- Custom device sizes you create
- App preferences (such as language and lifetime unlock state)
Uninstalling Back Pro removes this local app data.
On-Device AI Processing
When you use AI sticker generation, subject detection and cutout processing happen primarily on your iPhone using Apple on-device capabilities. Photos are not sent to Back Pro cloud servers for processing.
Limited Network Access
Back Pro may fetch a public device catalog JSON over HTTPS (device names and size parameters only, not your personal content). Apart from such public configuration, the app does not upload your design content to Back Pro servers.
This does not mean the app is fully offline—system services such as App Store purchase validation may still use the network when needed.
In-App Purchases
Back Pro Lifetime (product ID: com.richeng.backpro.lifetime) purchases, restore purchases, and Family Sharing are handled by the Apple App Store. Back Pro stores only the local unlocked state so you can use purchased features on your device.
Billing and account information related to purchases is managed by Apple. Back Pro cannot access your Apple ID password or full payment details.
iCloud and System Backup
App data stored on your device may be included in iOS system backups (for example, iCloud device backup). That boundary is governed by Apple system policies, and Back Pro cannot separately control iCloud backup scope.
Tracking and Analytics
Back Pro does not use third-party analytics SDKs, advertising SDKs, cross-app tracking identifiers, or targeted ad tracking.
Data Deletion
- You can delete saved designs from History in the app.
- When deleting a custom device model, the app prompts you and removes associated history records and assets.
- Uninstalling the app removes all locally stored Back Pro data from your device.
Children's Privacy
Back Pro does not knowingly collect personal information from children under 13.
Policy Updates
We may update this policy from time to time. When we do, we will revise the effective date on this page. For material changes, we may also notify you through in-app messaging or other reasonable means.
Contact Us
For privacy questions, contact: