MailTrace vs 流量管家

MailTrace is a lightweight on-device photo timestamping and email record tool for keeping personal process records, field notes, screenshots, and work-related image archives. You can take a photo, choose images from your library, or import screenshots and photos through the iOS share sheet. MailTrace adds timestamp watermarks locally on your device and prepares an email draft with a trace ID, attachment checksum information, and optional notes, making it easier to send records to your own mailbox or selected recipients for later review. Key features: • Add timestamp watermarks after taking a photo • Select images from your library and prepare trace emails • Import screenshots or photos through the Share Extension • Customize a short watermark identity, such as a project, field team, or role • Include trace IDs and SHA-256 attachment checksums in the email body • Fall back to the system share sheet when system Mail is unavailable • Process photos entirely on device without uploading them to any server Use cases: • Field or worksite records • Overtime process notes • Chat screenshot archiving • Project, inspection, delivery, or quality-control records • Personal image records organized by email and timestamp Privacy: MailTrace does not require an account, does not include advertising or tracking SDKs, and does not upload photos. Recipient emails and watermark settings are stored only on your device. Email delivery is handled by the iOS system Mail capability and depends on the Mail app, network status, and your email provider. Important note: MailTrace is intended for personal process records and later review. Watermarks, trace IDs, checksums, and email archives may serve as supporting material or reference, but they do not replace notarization, forensic examination, or electronic evidence preservation services, and they do not guarantee acceptance by any authority. For labor disputes, contract issues, or rights protection, keep the original records and consult a qualified professional.

流量管家：一手管流量，一手测网速，让你的 iPhone 网络状态一目了然。 在首页，一眼看清剩余流量、本月已用和日均消耗，再也不用担心超额。网络卡顿时，一键启动专业网速测试，快速诊断延迟、下载和上传速度。 【你的全能网络仪表盘】 流量总览：清晰展示套餐使用进度，支持账期与运营商校准。 历史趋势：按日/周/月查看流量消耗变化，快速定位高耗时段。 多档预警：自定义流量预警阈值，提前提醒，防止套餐超支。 专业测速：完成 Ping 延迟、下载、上传三阶段测试，结果直观呈现“相当于多少兆宽带”。 智能识别：自动区分 Wi-Fi/移动网络，蜂窝测速前贴心提示流量消耗。 桌面组件：在桌面与锁屏界面实时查看关键信息，无需打开App。 【使用简单，放心使用】 流量统计基于 iOS 系统数据估算，可通过“套餐校准”功能手动对齐运营商数据，结果更贴近您的实际使用。 测速结果受实时网络环境影响，建议多次测试以观察整体趋势。 移动网络下测速会明确提示流量消耗，推荐在 Wi-Fi 环境下进行长时间测试。