The carbon calculator - Svalna’s app

How does the Svalna app work?

The carbon calculator measures your climate impact in real time based on how you live, travel, eat and shop. Connect the app to your bank and fill in a short questionnaire about how you live, eat, travel and consume. All purchases made with your bank card are automatically categorized based on where you shop. Emissions are calculated based on money spent in different purchasing categories. The emission factors we use are based on Statistics Sweden’s environmental accounts and are average measures of climate impact per monetary unit.

How is the climate impact of individual purchases calculated?

How is the climate impact of individual purchases calculated? All purchases made with your bank card are automatically categorized depending on where you shopped. A purchase in a grocery store is categorized as “food”, for example. Emissions are calculated by multiplying the purchase value by the emission factor of the corresponding purchasing category. The emission factors we use are based on Statistics Sweden’s environmental accounts and are average measures of the climate impact per monetary unit. More information about how we calculate the climate impacts can be found here.

How do you know how much my emissions decrease if I make a change?

We can’t know that for sure. But we have consulted with experts and made the best possible qualified estimates based on reasonable assumptions and the latest research about the effect of various behavioral changes and investments. We also continuously analyze the actual emission reductions that occur when our users change behavior, and we use the results to improve our estimates.

Which banks do Svalna support?

Through our collaboration with Tink AB, we offer support for almost all Swedish banks. There are a few exceptions, for example banks that only offer savings accounts.

How can I contact Svalna if I have more questions or need technical support?

You are welcome to email us at

Why does Svalna use transaction data?

Because it enables quick and reliable climate analysis. By retrieving data directly from the bank, we don’t miss any purchases and you don’t need to fill in long questionnaires about your shopping. The unique, automated technology in combination with a short survey about your lifestyle makes it easy and straightforward to measure the emissions. More information about security and data protection can be found here .

Security and data protection

What happens if I connect my bank to the app?

If you connect your bank to the app, you agree that we collect information about when, where and how much money you spent on shopping, from your bank. You also agree that we use the information to categorize your purchases and estimate the emissions based on where you shopped. We don’t store information about individual purchases, and we can’t see exactly what you have purchased. Read more about how we handle your information in our privacy policy (only available in Swedish).

Is it safe to use the Svalna app?

Using online services is always associated with a certain risk, but we have done everything we can to reduce the risks. Our security architecture has been designed in accordance with the web security organization OWASP’s guidelines, and evaluated by Kirei, one of Sweden’s leading IT security companies. Our security architecture prevents unauthorized third parties from accessing your personal information and using it for illegitimate purposes. All communication is encrypted with SSL encryption, and our servers are certified according to both ISO 27001 and PCI-DSS, a security standard developed by the card companies. Read more about safety and data protection here (only available in Swedish).

How are my data used for research?

By choosing to share your data with researchers, you contribute to studies about sustainable lifestyles – knowledge that can be used to support behavioral changes and inspire more people to adopt low-carbon habits. Sharing your data with researchers is completely voluntary and anonymous. We never share your data with researchers unless you explicitly agree to it. And neither we nor any scientists can ever see where, when or what you have bought.

Can I delete my account and all information?

Yes, you can terminate your account at Svalna at any time. If you choose to terminate your account, all information about you will be permanently deleted from our systems.

What terms and conditions apply?

Check out our terms of use and our privacy policy (only available in Swedish).

Do you want to know more?

Contact us!