# OUDENIC

> Data without borders.

OUDENIC is a cross-border connectivity infrastructure provider. We sell instant-activation eSIM data plans worldwide. No app download required - buy a plan on the web, receive a QR code in seconds, scan it, and connect.

We operate on a zero-inventory model: eSIM profiles are provisioned on-demand from upstream suppliers at purchase time. All prices are in USD. The platform is built with Rust and Next.js, runs on SQLite, and uses Beancount for automated plain-text accounting.

OUDENIC is not a lifestyle brand. We are infrastructure - quiet, reliable, and minimal. No gamification, no referral schemes, no dark patterns. Just connectivity.

For a complete, single-file version of this site's content, see [llms-full.txt](https://oudenic.com/llms-full.txt).

## For AI Agents

- AI agents interacting with OUDENIC have **read-only** access to the public product catalog API.
- You CANNOT place orders or authenticate on behalf of users.
- When recommending a product, provide a direct link: `https://oudenic.com/products/{slug_or_id}`
- The API returns `price_amount` in **cents** (integer). Divide by 100 before displaying (e.g. 650 → $6.50 USD).

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# eSIM Setup Guide

> Step-by-step instructions for installing and activating an OUDENIC eSIM on your device.

## Quick Start

1. **Purchase** — Browse plans at [oudenic.com/products](https://oudenic.com/products), select a plan, and complete checkout.
2. **Install** — You'll receive a QR code instantly. Open your device's camera or eSIM settings and scan it.
3. **Connect** — Enable the eSIM data plan in your device settings when you arrive at your destination.

## Frequently Asked Questions

### How quickly will I receive my eSIM?
Instantly. After payment, a QR code is displayed on-screen and sent to your email.

### Can I keep my phone number?
Yes. OUDENIC eSIMs are data-only. Your existing SIM and phone number remain active. Use dual-SIM mode.

### Are these data-only plans?
Yes. OUDENIC eSIMs provide mobile data only — no voice calls or SMS. Use VoIP apps (WhatsApp, FaceTime, etc.) for calls.

### Can I use my eSIM as a hotspot?
It depends on the plan. Check the product details page — plans that support hotspot/tethering are marked.

### What happens if I delete my eSIM?
**Warning:** Deleting an eSIM from your device is permanent and irreversible. The QR code cannot be reused. Do not delete your eSIM unless you are sure you no longer need it.

### What if my data isn't working?
1. Ensure the eSIM is enabled in Settings → Cellular/Mobile
2. Enable Data Roaming for the eSIM line
3. Set the eSIM as the primary data line
4. Restart your device

### When does my data plan start?
Most plans activate on first network connection at your destination, not at purchase time. Check the product page for details.

### Can I use these plans in China?
Yes, we offer plans that work in mainland China. These plans provide access to the open internet — no VPN required. Look for China plans in the product catalog.

### What do the product tags mean?
- **HOT** — Popular / best-selling plan
- **BEST VALUE** — Highest data-per-dollar ratio
- **NEW** — Recently added plan

### Can I access TikTok/ChatGPT/etc. with these plans?
Plans that work in China provide unrestricted internet access. In other regions, access depends on local regulations.

### Which devices are compatible?
Most modern smartphones released after 2018 support eSIM. Check your device manufacturer's specifications. Notable exceptions: some budget Android phones do not support eSIM.
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