# SnapDim · 拍尺

> SnapDim (拍尺) is an iPhone app for measuring planar objects and keeping dimension annotations in photos.
> 拍尺（SnapDim）是一款 iPhone 拍照测量工具，用于测量平面物体，并把尺寸标注保存在照片里。

This file describes only SnapDim and the pages under https://app.yeshu.fun/imagesize/.
本文件仅介绍拍尺及其官网 /imagesize/ 下的页面。

**English**

SnapDim helps record furniture panels, DIY parts and other planar objects. Capture a photo in the app, select an object's boundary or add a two-point distance, refine annotation endpoints, then save, revisit, edit or share the annotated photo. Units include millimeters, centimeters, inches and decimal feet. The app interface supports English, Simplified Chinese, German, French and Japanese.

Real capture requires a LiDAR-capable iPhone running iOS 17 or later. Measurements need usable depth data and endpoints on the same surface. Reflective or transparent materials, occlusion and camera pose can affect results. Check critical dimensions with a physical measuring tool. The app starts with in-app capture; importing existing photos for calibration is not supported.

The bundled sample is free to explore. New real captures require an annual subscription or a one-time lifetime unlock, with the same full measurement access. Eligible annual subscribers receive a 7-day free trial, followed by automatic yearly renewal. Local prices and trial eligibility are shown before purchase. Cancel renewal in Apple subscription settings at least 24 hours before the period ends. Lifetime access does not cancel an existing subscription. Saved records remain viewable, editable and exportable after subscription expiry.

Photos, recognition and measurement calculations stay on the iPhone. No app account is required. Apple and RevenueCat handle purchases and restoration.

**中文**

拍尺帮助记录家具板件、手工零件等平面物体的尺寸。在 App 内拍摄照片后，可点选物体边界或添加两点距离，微调标注端点，再保存、回看、编辑或分享带尺寸的照片。支持毫米、厘米、英寸与十进制英尺；App 界面提供英文、简体中文、德语、法语和日语。

真实拍摄需要支持 LiDAR 的 iPhone，系统为 iOS 17 或更高版本。测量需要可用深度数据，端点位于同一表面。反光、透明材质、遮挡和拍摄姿态会影响结果，关键尺寸应使用实体量具复核。本版从 App 内拍摄开始，不支持导入已有照片进行标定。

自带示例可免费体验。真实新拍摄需要年订阅或一次性买断，两者提供相同完整测量功能。符合资格的年订阅用户可享 7 天免费试用，之后按年自动续费。购买前显示当地价格与试用资格；取消续费需在周期结束至少 24 小时前于 Apple 订阅设置中操作。买断不会自动取消已有订阅。订阅结束后，已有记录仍可查看、编辑与导出。

照片、识别与测量计算留在 iPhone 本机，无需注册 App 账户。Apple 与 RevenueCat 处理购买和恢复。

## Product and download / 产品与下载

- [English product overview](https://app.yeshu.fun/imagesize/en/): Features, workflow, device requirements and purchase options.
- [中文产品介绍](https://app.yeshu.fun/imagesize/): 拍照测量、尺寸标注、使用条件与收费方式。
- [SnapDim on the App Store / 拍尺 App Store 下载](https://apps.apple.com/app/id6810995368): Official app listing and regional purchase details; app ID 6810995368.

## Support and policies / 帮助与政策

- [English support](https://app.yeshu.fun/imagesize/support/en/): Getting started, measurement issues, purchases, restoration, saving and deletion.
- [中文使用帮助](https://app.yeshu.fun/imagesize/support/): 操作入门、测量问题、购买恢复与记录管理。
- [Terms of Use and Privacy Policy / 使用协议与隐私政策](https://app.yeshu.fun/imagesize/privacy/): Combined policy page with Chinese and English language selection.

## Optional

- [SnapDim sitemap / 拍尺站点地图](https://app.yeshu.fun/imagesize/sitemap.xml): Canonical product, support and policy URLs with language alternatives.