SIMon mobile-App

SIMon mobile app: Book and manage your affordable mobile phone contract now.

With SIMon mobile, your affordable mobile plan, you secure numerous benefits – affordable and without a fixed contract:

• From 20 GB including LTE/5G with up to 150 Mbps

• From only €8.99 per month

• Flexible data volume add-ons

• Monthly cancellation

• Available with eSIM

• Top D-network quality

• All-network call and text flat rate

• EU roaming included

• Flexible pause options

• No upfront costs

• 14-day right of withdrawal

Get started with the SIMon mobile app right away:

1. Get the SIMon mobile app.

2. Order what you need directly.

3. Insert your SIM card and get started right away.

4. Manage your contract whenever you like.

One plan, many options

If you bring your current phone number to SIMon mobile, you'll pay for 20 GB of data, including LTE/5G with up to 100 Mbps, top D-network quality, an all-network call and text flat rate, and free EU roaming, starting at €8.99 per month.

Want a new number? Easy! For €11.99, you can add a new mobile number to your SIMon mobile services.

All mobile options – full flexibility & cost control

With SIMon mobile, you get a versatile mobile phone contract – while retaining all the freedom and full cost control. You have a whopping 20 GB of data available monthly for surfing, gaming, chatting, and streaming. If you need more data, you can add 10 GB, 30 GB, 50 GB, or even 80 GB per month. Add it and surf with 30 GB, 50 GB, 70 GB, or even 100 GB at speeds of up to 150 Mbps. You can cancel the additional data volume at any time at the end of the month. No problem!

With the practical all-network flat rate, you can call and text all German networks – and EU roaming is included free of charge. If you're traveling outside of the EU, you can simply add an additional option. Plus, you'll never have to worry about high cell phone bills again: No connection fees, no shipping costs, no multi-year contract, and you can cancel monthly and pause for up to three months. Reassess each month whether this plan is right for you and your daily life.

Keep a perfect overview with the app

Register quickly and easily for the "My SIMon" customer portal. In your personal area, you can easily check your data usage and remaining data volume at any time. If you ever need more, you can add a data option that suits you. For complete cost control, you can always see your current costs in the app.

Always keep an eye on your current contract details and details in your app. If you ever want to edit your personal contract details, such as your IBAN, you can of course do that too.

If you want to transfer your phone number to SIMon mobile at a later date, you can easily request the porting in your customer portal.

If you need a replacement SIM card, want to switch to an eSIM, or need to lock your current SIM, do it in the app.

Need a break? No problem! You can easily pause your contract for up to 3 months in your SIMon mobile app. It's that simple!

Quick answers to your questions

Do you have questions about SIMon mobile's plan details or need more detailed information about specific app features? Then take a look at our FAQs – we have the right answer for everything!

Contacting us made easy

Don't see all the answers you need? Simply use the online contact form, send an email to [email protected], or give us a quick call. You can reach us by phone at +49 211 91325430 Monday to Sunday between 7:00 a.m. and 11:00 p.m.

Simon.