Updated 2026-10-31 · Forma 1.1
以下说明适用于 1.1 更新；较早版本可能仅使用设备本地试用记录。This policy describes version 1.1; earlier versions may use only on-device trial records.
Forma 在设备本机读取和转换用户主动选择的视频。导入的工作副本、缩略图、媒体参数及导出文件由设备本地处理，不上传到开发者服务器。视频导出后可由用户保存到相册或通过系统分享保存到文件；音频结果使用系统分享保存，不保存到相册。
Forma 不提供开发者账号、社交、云存储、云同步、云转码、广告 SDK 或跨 App 追踪。没有开发者运营的视频处理服务器。
试用核验使用 Apple StoreKit 提供并验签的零元试用领取交易时间、撤销状态，以及本机 Keychain 试用记录；App 原始下载日期与原始构建号仅用于识别并保留旧版试用时间。旧版 UserDefaults 中的较早试用时间会迁移。Keychain 记录包含试用起点、最近观察时间、核验状态、是否需要领取、领取时间与撤销状态，用于避免重装重置及明显时钟回退；不存储视频内容、支付卡信息或广告标识符，不上传到开发者服务器。
删除 App 会移除其沙盒文件和设置，但系统 Keychain 试用记录可能仍保留；Apple 的原始下载、试用领取和买断记录不会因卸载重置。本 App 不把删除 App 当作撤销购买或重新发放试用。
购买、恢复购买、退款和下载记录由 Apple 处理。资格核验及购买服务可能需要连接 Apple，但视频转换不上传媒体文件。用户在系统分享中选择的其他 App、iCloud 或在线服务按其各自规则处理内容。
用户可以自行删除本地导入和导出内容。开发者没有用户视频或个人账号数据库可供删除。支持：tongjia323@gmail.com。主动发送支持邮件时，开发者会收到邮件地址和邮件内容，仅用于处理反馈；请勿发送原始私人视频或支付凭据。
Forma reads and converts videos selected by you on your device. Working copies, thumbnails, media metadata and exports are processed locally and are not uploaded to developer servers. Video exports can be saved to Photos or Files through system sharing. Audio exports use system sharing, not Photos.
Forma has no developer account system, social feed, cloud storage, cloud transcoding, advertising SDK or cross-app tracking.
Trial validation uses the verified original zero-price trial transaction date, revocation status and a local Keychain record. The original app acquisition date and build number identify and preserve earlier-version trials. Earlier trial dates migrate from UserDefaults. Keychain stores the trial start, last-observed time, verification state, whether a claim is required, claim date and revocation state to reduce resets and clock rollback. It contains no media, payment-card details or advertising identifier and is not sent to developer servers.
Removing Forma deletes sandbox content and settings, but a Keychain trial record may remain. Apple acquisition, trial-claim and lifetime-purchase records are not reset by uninstalling the app.
Apple handles purchases, restoration, refunds and app acquisition. These services may require an Apple connection; video processing does not send media to Apple or the developer. Destinations you choose in the system share sheet, such as iCloud or another app, handle content under their own policies.
You manage your local input and output files. We hold no developer-hosted user-video or account database. Contact: tongjia323@gmail.com. If you email support, the developer receives your email address and message only to handle your request. Do not send private videos or payment credentials.