Unit Convert — Privacy Policy

Effective date: 2026-05-21 · Developer: Xiao Guo

1. Overview

Unit Convert (the “App”) is a utility for converting between units of measurement and currency. This policy explains what information the App handles and what it does not.

2. Data We Collect

We do not collect any personal data. The App has no user accounts, no analytics, no advertising SDKs, and no tracking. All conversion history, favorites, and settings are stored only on your device using Apple’s standard app storage (UserDefaults and the app sandbox file system) and never leave your device.

3. Network Access

The App makes one type of network request: it periodically fetches public foreign-exchange rates from the public endpoint https://open.er-api.com/ in order to show up-to-date currency conversions. These requests:

contain no user identifier, device identifier, account, email, or personal data;
are read-only (they only retrieve published exchange rates);
are anonymous from the App’s perspective (we do not send any identifying information about you).

The remote service’s own logs (such as IP address) are governed by that service’s policy, not ours. You can use the App fully offline; cached rates will be used until the next successful refresh.

4. Permissions

The App does not request location, contacts, camera, microphone, photos, health, motion, calendar, reminders, Bluetooth, or local network permissions.

5. Third Parties

The App does not embed any third-party analytics, advertising, or tracking SDKs. The only third-party service contacted is the public ER-API exchange-rate endpoint described above, and only for the purpose of retrieving rates.

6. Data Retention & Deletion

All of your data (history, favorites, settings) is stored on your device. You can clear it from inside the App, or by deleting the App, which permanently removes all of its local data.

7. Children

The App is a general-audience utility and is not directed to children under 13. It does not knowingly collect any data from children.

8. Changes

If this policy is updated, the latest version will be posted on this page, with a new effective date above.

9. Contact

Questions about this policy? Email 544627835@qq.com.

Unit Convert — 隐私政策

生效日期：2026-05-21 · 开发者：郭晓

1. 概述

Unit Convert（“本应用”）是一款单位与货币换算工具。本政策说明本应用处理与不处理哪些信息。

2. 我们收集的数据

我们不收集任何个人数据。本应用没有账户体系、没有分析统计 SDK、没有广告 SDK,也不做任何跟踪。换算历史、收藏夹和设置仅通过 iOS 标准的 UserDefaults 和应用沙盒文件存储在你的设备本地,不会离开你的设备。

3. 网络访问

本应用只发起一类网络请求:从公开接口 https://open.er-api.com/ 定期获取公开的外汇汇率,用于显示最新的货币换算结果。该请求:

不包含任何用户标识、设备标识、账号、邮箱或其他个人数据;
仅用于读取公开发布的汇率;
从本应用角度是匿名的(我们不向其发送任何能识别你的信息)。

远端服务自身的日志(例如访问 IP)由该服务自身政策约束。你可以完全离线使用本应用,本应用会使用上次成功获取的缓存汇率,直到下一次刷新成功。

4. 权限

本应用不请求定位、通讯录、相机、麦克风、相册、健康、运动、日历、提醒事项、蓝牙或本地网络权限。

5. 第三方

本应用未集成任何第三方分析、广告或跟踪 SDK。仅有的第三方服务即上述 ER-API 公开汇率接口,且仅用于获取汇率。

6. 数据保留与删除

你的所有数据(历史、收藏、设置)仅存储在你的设备本地。你可以在应用内清除,也可以通过删除本应用一次性永久删除其全部本地数据。

7. 儿童

本应用面向一般用户,并非面向 13 岁以下儿童。本应用不会有意收集任何儿童数据。

8. 变更

如本政策有更新,将在本页面发布最新版本,并更新页首生效日期。

9. 联系我们

如对本政策有疑问,请发邮件至 544627835@qq.com。