Privacy
Privacy Policy
This policy applies to the Ark Client app (package com.zeroonearkpos.client)
Updated 26 June 2026 · Effective 26 June 2026
This English text is a convenience translation. The Chinese version is the legally binding one; if the two differ, the Chinese version prevails.
Shanghai Lingyi Yuanzhou Technology Co., Ltd. (上海零一源舟科技有限公司) (“we”) understands how important personal information is to you, and works to keep it safe. We follow these principles: matching responsibility with authority, clear purpose, consent by choice, data minimisation, security, participation by the data subject, and transparency.
Ark Client is an ordering and checkout tool used by staff inside a restaurant. This policy explains how we collect, use, store and protect personal information, and how you can manage it.Please read this policy carefully before using the app. By using it you accept that we handle the relevant information as described here.
1. What we collect, and why
The app is used to run a restaurant, so most of the information is business data entered and managed by the store itself. We collect only what the following functions require:
| Type of information | Purpose | Notes |
|---|---|---|
| Member details (phone number, name, membership number) | Letting staff create member records, look members up, and handle stored value and points | Collected only when the store creates or looks up a record; managed by the store as its own business data |
| Orders and transactions (dishes, amounts, payment method, table) | Taking orders, settling bills, house accounts and operations reports | Business data belonging to the store |
| Device information (model, OS version, device identifier) | Device authentication, securing the link between terminal and cloud, and fault diagnosis | Used to identify authorised devices |
| Network information (IP address, Wi-Fi and network status) | Syncing orders, tables and member data with the cloud, and diagnosing connection quality | Not used for location |
We do not collect personal information unrelated to the functions above, do not push advertising to you, and integrate no third-party advertising, analytics or push SDKs.
2. Device permissions and what they are for
We request the permissions below only where a function requires them. Apart from the network permissions, sensitive permissions are requested at the moment you use the related function and you may decline; declining affects only that function.
| Permission | Purpose |
|---|---|
| Network and Wi-Fi (INTERNET / ACCESS_NETWORK_STATE / ACCESS_WIFI_STATE) | Syncing orders, tables and member data with the cloud |
| Bluetooth (BLUETOOTH_CONNECT / BLUETOOTH_SCAN) | Connecting Bluetooth thermal printers for receipts and kitchen tickets (requested at runtime) |
| Location (Android 11 and below only, maxSdkVersion=30) | Required by older Android versions to scan for Bluetooth devices. We neither collect nor record any location data |
| Foreground service and device connection (FOREGROUND_SERVICE family) | Keeping the print agent resident so kitchen and receipt printing is not interrupted |
| Start on boot (RECEIVE_BOOT_COMPLETED) | Tills stay powered on; printing resumes automatically after a restart |
| Battery exemption and wake lock (REQUEST_IGNORE_BATTERY_OPTIMIZATIONS / WAKE_LOCK) | Stopping power-saving policies from killing the printing process and losing kitchen tickets |
| Notifications (POST_NOTIFICATIONS) | Showing printing errors and service status (requested at runtime on Android 13+) |
| USB devices (usb.host) | Printing directly to a USB thermal printer |
3. Third-party SDKs and information sharing
The app includes the third-party components below. We assess their legality, legitimacy and necessity, and require them to comply with applicable law and confidentiality obligations.
| Name | Purpose | Information involved |
|---|---|---|
| ASP.NET Core SignalR client (Microsoft) | Real-time connection to the cloud for orders, tables and member data | Network connection information |
| Plugin.Maui.Audio | Playing new-order and alert sounds in the kitchen | No personal information |
| SQLite (local database) | Caching business data on the device so it works offline | Stored locally only, not uploaded |
We do not share your personal information with third parties except where a store function requires it or the law demands it. If we integrate new third-party SDKs (payment or delivery platforms, for example), we will update this list and seek consent again where required.
4. Storage and security
Business data is transmitted encrypted (HTTPS / TLS) and stored on servers inside the People's Republic of China. Local data lives in the app's private directory. We use access control, device authentication and similar measures to prevent unauthorised access, disclosure or tampering.
We keep personal information only as long as the purposes described here require, and then delete or anonymise it, unless the law requires otherwise.
5. Your rights
Under applicable law you may access, correct, supplement, copy and delete your personal information, withdraw consent, and close an account. Because this app is used by store staff and member records are managed by the store as the operator, guests should contact the store in question to exercise these rights; you may also reach us at the contact below and we will respond within the statutory period.
6. Minors
This app is a commercial tool for restaurant operators and their staff, and is not aimed at minors. We do not knowingly collect personal information from minors.
7. Changes to this policy
We may revise this policy from time to time. The latest version is published on this page with an updated date. Where the changes materially affect how personal information is handled, we will notify you separately by an appropriate means.
8. How to contact us
If you have questions, comments or complaints about this policy or how personal information is handled, contact us and we will look into it promptly:
- Entity: Shanghai Lingyi Yuanzhou Technology Co., Ltd. (上海零一源舟科技有限公司)
- Email: arkpos@qq.com