All the benefits of your service world now in one app! All information about your plan is always at your fingertips.

With our BIGSIM Service World app, you have everything you need at a glance: Check your bill on the go, book suitable plan options, or update your data. Never miss out on current special offers and plan highlights again!

The BIGSIM Service World app makes managing your mobile phone plan even easier on your smartphone or tablet!

- Easily check and update your personal customer data.
- View your bills on the go at any time.
- Conveniently request a plan change.
- Book or deactivate your additional options.
- Activate or deactivate services on the go.
- Conveniently order a replacement card or MultiCard.
- Request our repair service for your mobile phone and check the repair status at any time.
- Get help in our FAQ section and via the contact form.
- Access the information you need about smartphone and mobile phone usage.
- Order a state-of-the-art smartphone or cell phone from our mobile phone shop.
- and much more.

*Note*
Please note that constant availability of the BIGSIM Servicewelt app cannot be guaranteed.

Stay logged in
If you activate this function on the login page, your device will automatically log in to your personal Servicewelt app in the future without you having to enter your login details again.

Your opinion of the Servicewelt app
Your satisfaction is important to us. Do you have questions about the app or would you like to give us suggestions for further development? Please email us at [email protected]