# Privacy Policy / 隱私政策
**OnlyU**
Last updated: May 2026 / 最後更新:2026年5月
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## English
### Overview
OnlyU is a private, one-to-one messaging app. We built it with a simple
principle: your conversations belong to you, not us.
### Information We Do NOT Collect
- We do not collect your name, email address, or phone number.
- We do not read, store, or have access to your messages or calls.
- We do not track your location.
- We do not use analytics or advertising SDKs.
- We do not sell your data to any third party.
### How the App Works
OnlyU connects you directly with one trusted person using peer-to-peer
(WebRTC) technology. Messages and calls travel directly between your
devices — they never pass through or are stored on our servers.
### Information That Passes Through Our Servers
Our signaling server (hosted on Cloudflare Workers) handles only the
technical handshake needed to establish your device-to-device connection:
- A randomly generated device identifier (created locally on your device)
- A pairing token used to authenticate your connection
- Call signaling data (e.g., "a call is starting") — not the call content
This data is transient and is not stored after your session ends.
### Push Notifications
To deliver incoming call notifications while the app is in the background,
we use Apple PushKit (VoIP push). Your device token is sent to our
signaling server and used solely to deliver call alerts. It is not shared
with third parties.
### TURN Relay Server
In cases where a direct peer-to-peer connection cannot be established,
audio/video data may be relayed through a TURN server operated by
Metered.ca. This relay only transmits encrypted data and does not store
call content.
### Subscriptions
Subscription purchases are processed entirely by Apple. We do not receive
or store your payment information. For subscription management, please
refer to Apple's privacy policy.
### Data Retention
Messages are stored only on your device. If you enable "Clear on Exit,"
messages are automatically deleted when you leave the app. You may delete
all local data by uninstalling the app.
### Children's Privacy
OnlyU is not intended for children under 12. We do not knowingly collect
information from children.
### Changes to This Policy
We may update this policy from time to time. Continued use of the app
after changes constitutes acceptance of the updated policy.
### Contact
For privacy-related questions, contact us at:
**drkenchen@gmail.com**
---
## 繁體中文
### 概述
OnlyU 是一款私密的一對一通訊 App。我們秉持一個簡單原則:你的對話屬於你,不屬於我們。
### 我們不收集的資訊
- 我們不收集你的姓名、電子郵件或電話號碼。
- 我們無法讀取、儲存或存取你的訊息或通話內容。
- 我們不追蹤你的位置。
- 我們不使用任何分析或廣告 SDK。
- 我們不將你的資料出售給任何第三方。
### App 運作方式
OnlyU 透過點對點(WebRTC)技術,讓你與唯一信任的人直接連線。訊息和通話直接在你們的裝置之間傳送,從
不經過或儲存於我們的伺服器。
### 經過我們伺服器的資訊
我們的信令伺服器(架設於 Cloudflare Workers)僅處理建立裝置間連線所需的技術握手:
- 在你的裝置本地產生的隨機裝置識別碼
- 用於驗證連線的配對令牌
- 通話信令資料(例如「通話即將開始」)— 不包含通話內容
這些資料屬於暫時性資料,在你的連線結束後不會被保留。
### 推播通知
為了在 App 於背景執行時傳送來電通知,我們使用 Apple PushKit(VoIP
推播)。你的裝置令牌會傳送至我們的信令伺服器,且僅用於傳送來電提醒,不會與第三方共享。
### TURN 中繼伺服器
在無法建立直接點對點連線的情況下,音訊/視訊資料可能會透過 Metered.ca 運營的 TURN
伺服器進行中繼傳輸。該中繼僅傳輸加密資料,不儲存通話內容。
### 訂閱
訂閱購買完全由 Apple 處理。我們不會收到或儲存你的付款資訊。訂閱管理請參閱 Apple 的隱私政策。
### 資料保留
訊息僅儲存在你的裝置上。若你啟用「離開清除」功能,訊息將在你離開 App 時自動刪除。你可透過解除安裝
App 刪除所有本地資料。
### 兒童隱私
OnlyU 不適用於 12 歲以下的兒童。我們不會故意收集兒童的資訊。
### 政策變更
我們可能會不定期更新本政策。在變更後繼續使用 App 即表示接受更新後的政策。
### 聯絡我們
隱私相關問題,請聯繫:
kee4appledev@gmail.com