UNDO. Belgium’s first climate focused mobile operator

Take the first step toward a more sustainable lifestyle



Spoiler alert: because your phone consumes more CO2 than you think

Reality check incoming ...

If you use your smartphone every day, you emit an average of 60 kg CO₂ a year. That is about the same as the emissions caused by driving a car from Brussels to Amsterdam, and back. With UNDO you can compensate these emissions. We plant a tree for every new subscriber and you can support additional valuable projects, including several carbon removal technologies.

A customized subscription

Three different bundles, all with a positive impact

5 GB

Undo XS
€ 8/month
Most popular
250 minutes
100 SMS
1 KG of CO2 to compensate

+ 1 tree at activation

20 GB

Undo S
€ 14/month
500 minutes
100 SMS
2 KG of CO2 to compensate

+ 1 tree at activation

30 GB

Undo M
€ 18/month
Unlimited minutes
100 SMS
4 KG of CO2 to compensate

+ 1 tree at activation

40 GB

Undo L
€ 24/month
Unlimited minutes
Unlimited SMS
8 KG of CO2 to compensate

+ 1 Tree planted each month

A sustainable mobile provider

For those who love the planet as much as they love their phone


Change the world with the UNDO app

Discover our unique app. It's not just user - but also eco-friendly

Track carbon emissions caused by your phone in real time and stay updated on your carbon footprint status using the UNDO app


Download the app

Help make a difference

Subscribe now and make the world a little bit better