Belgiums only sustainable mobile subscriptions

Find the mobile subscription that best suits you and helps make the world a better place by:

  • Removing CO2
  • Planting a tree
  • Supporting the locals
Check our mobile subscriptions

Our mobile subscriptions

Most popular

Undo XS

  • 5 GB of data
  • 250 minutes
  • 100 SMS
  • 1 tree planted at activation
  • 3 KG of CO2 to compensate your emissions, at no extra cost or effort.

€ 8/month

I choose this subscription

Undo S

  • 20 GB of data
  • 500 minutes
  • 100 SMS
  • 1 tree planted at activation
  • 6 KG of CO2 to compensate your emissions, at no extra cost or effort.

€ 14/month

I choose this subscription

Undo M

  • 30 GB of data
  • Unlimited minutes
  • 100 SMS
  • 1 tree planted at activation
  • 9 KG of CO2 to compensate your emissions, at no extra cost or effort.

€ 18/month

I choose this subscription

Undo L

  • 40 GB of data
  • Unlimited minutes
  • Unlimited SMS
  • Each month, 1 tree planted
  • 12 KG of CO2 to compensate your emissions, at no extra cost or effort.

€ 24/month

I choose this subscription

Why choose an UNDO subscription

“Easy switch with eSIM”

As a sustainable mobile provider we are proud to offer our users the 100% digital eSIM. This means no plastic cards, emissions linked to logistics, or going to the nearest store for activation. At UNDO you can order and activate your eSIM within 2 hours! Learn more about eSIM

“Decarbonize the planet”

UNDO subscriptions also ensure that you consume consciously. Each subscription includes a certain amount of CO2 credits (KGs) to make sure you stay carbon neutral. Your act of compensation helps mobilize much needed climate finance for emerging technologies that are trying to solve the climate challenge.

“Enable social inclusion”

UNDO also supports social initiatives for the locals of the UNDO Forest. The community consists of workers from the near by villages and their families. Our unique add-ons you purchase, allow to improve IBI Village locals lives. Learn more about UNDO social initiatives

Customize your subscription with add-ons

We understand that one size doesn’t fit all. That’s why we created these add-ons to tailor your subscription to your specific needs and preferences.

Need extra GB and SMS ?

2 GB data

€ 4,00/month

5 GB data

€ 8,00/month

10 GB data

€ 14,00/month

20 GB data

€ 20,00/month

Unlimited SMS

€ 3,00/month

Need extra CO2 KGs to compensate your monthly emissions ?

2 KG CO2

€ 1,00/month

5 KG CO2

€ 2,00/month

10 KG CO2

€ 3,50/month

Want to support UNDO social initiatives ?

Internet@school

€0,50/month

School renovation

€0,50/month

Medical Aid

€0,50/month

Doctor visit

€0,50/month

Farm tools

€0,50/month

Biodiversity – Beehive

€0,50/month

Grow trees in Belgium

€1,50/month

Grow 1 tree in Congo

€2,00/month

Grow 3 trees in Congo

€5,50/month

Price list

Find all rates here
Price list

Billing

Calls

From the first second of your call, you pay per second

SMS

An SMS counts a maximum of 160 characters. When that amount is exceeded, the following characters automatically count as a new SMS message

Data

For each mobile data session, you pay per kB consumed from the first kB

The unlimited bundles is exclusively reserved for personal and private use.
The normal usage conditions are: maximum 10000 minutes and/or 10000 SMS per month

Want to call international or in roaming ?

Stay connected, wherever you go with UNDO’s international and roaming tariffs.
Check it out

Frequently asked questions

More FAQ’s available here

  • How do I become an UNDO customer?

    It’s very simple! You can download our mobile app to do it or via our website by selecting the subscription of your choice.

    1. You must first log in with ITSME to create your account.

    2. Then follow the order steps until it is finalized.

    3. You will receive an email confirmation of your order.

    If you order an eSIM, you will receive a second email with the QR code of your eSIM in order to install it on your smartphone. The activation of your number with an eSIM is generally active within the hour and you can start using it immediately, unless you have made a request for a number transfer. In that case, the delay mainly depends on your current operator!

  • How can I transfer my actual phone number from another operator to UNDO?

    When ordering, you will need to provide us with all the required information from your previous operator and we will take care of the number transfer. Make sure you fill out all fields accurately for a quick and smooth number transfer. Otherwise your previous operator will simply refuse the transfer of your number.

  • When does the invoicing of my subscription starts?

    The billing for your subscription begins on the day your number was activated. You will receive your first invoice at the beginning of the next month, on which you will be billed partially for the current month (from the day your number got activated until the end of the month) as well as for the following month.
    Example: My subscription has been active since the 15th of September. My invoice at the beginning of October will be as follows:
    – Subscription invoiced from 15 to 30 September prorated to the number of active days: 16 days out of 30
    – Subscription invoiced from 1 to 31 October: 31 days

  • Why choose an eSIM?

    An eSIM is a digital SIM card, which replaces a traditional physical SIM card. At UNDO, you don’t pay any costs for this type of SIM card. With an eSIM you can start surfing, calling and sending SMS in the minutes following your order because it activates much faster than a physical SIM card.
    Note: not all phones support an eSIM. Smartphones that do this also offer space for a physical SIM card. With such a Dual SIM smartphone, you kill two birds with one stone. You can use two numbers, and therefore two subscriptions. Compared to a traditional physical SIM card, an eSIM has many advantages:
    – Activation is digital so you have no waiting time
    – You choose a more environmentally friendly alternative, without plastic.
    – You can easily switch from one number to another if you have a Dual SIM smartphone. So you decide, for example, which number you call with and which number you surf with.
    – Outside the EU you can easily use a local SIM card.
    – Lost or stolen smartphone? Activate a new eSIM in 1-2-3 in your replacement device.
    – No need to change physical SIM cards anymore.

  • How to buy an eSIM?

    During your order you can simply choose for an eSIM or a classic SIM card.
    In case of an eSIM, you will need to select the brand of your smartphone and then the model of your smartphone in order to know whether or not your smartphone is compatible with the eSIM. If this is the case, we strongly recommend that you opt for an eSIM for which the carbon footprint is practically zero compared to a traditional SIM card.

  • How to activate an eSIM?

    Once you’ve ordered an eSIM you’ll receive an email with the detailed installation procedure.
    Is this eSIM for another person? Then forward this email to the relevant person so it can be installed on his/her smartphone.

    Follow these steps for the eSIM installation:
    – Scan the QR-code in the email with the camera of your smartphone
    – Follow the steps and unblock your eSIM with the PIN-code received in the email

    Please note that after scanning the QR-code and installing the profile you will receive a SMS once your eSIM is active.

    Important: DON’T delete the installed eSIM from your smartphone because you can only install the QR-code once!

    Pay attention: if the installation with the above steps fails you can also activate it manually:
    – For Apple : go to “Settings” – “Cellular” – “Add Cellular Plan” – “Use QR-code” and complete the steps
    – For Android :
    1. Go to “Settings” – “Connections”
    2. Tap on “SIM card manager”
    3. Select “Add mobile plan”
    4. Navigate to “Other ways to add plans”
    5. Choose “Add using QR code”
    6. Scan the provided QR code
    7. Follow on-screen prompts