Your all-in-one eSIM APP
for global travel

No SIM cards. No stores. Just tap, activate, and get online in minutes.

How DeSiM ONE Works?

Quick email or social login — no app install.

Activate

Scan your QR code, import your order, or enter setup manually.

Stay Online

Track usage, manage plans, and share access — all from one place

Do I need to download an app?
No — DesimONE is a browser-based WebApp. You can launch it directly without any downloads or installs.
How do I activate my eSIM?
You can scan a QR code, import your existing order, or enter setup details manually — activation usually takes under 3 minutes.
Can I use this while traveling internationally?
Absolutely. DesimONE supports both local and global data plans in over 100 countries.
How do I check my data usage?
Our dashboard gives you real-time usage stats with clear visuals — see what you’ve used and what’s left at a glance.
Can I manage multiple devices or users?
Yes — you can add members, assign plans, and share data across multiple devices from your account.
What if I run out of data?
No worries. You can top up instantly, switch to another plan, or pause and resume service anytime.
Is DesimONE available in multiple languages?
Yes. Currently we support English and Japanese, with more coming soon.
Can I manage eSIMs from different brands?
In the future, yes. We will provide management functionality for eSIMs from all brands.