Privacy Policy
Last updated September 30, 2026.
This policy explains what happens to your information when you use trysumly.com ("Sumly," "we," "us"), including all of our calculators and guides. Questions: contact@trysumly.com.
Calculator inputs never leave your browser
Every number you type into a Sumly calculator, including expenses, income, assets and assumptions, is processed only in your browser's memory. It's never transmitted to us or any server, and it disappears when you close or refresh the page. We have no way of seeing what you enter.
Information collected automatically
Like most websites, our hosting provider may automatically log basic technical information when you visit, such as your IP address, browser type, pages requested and the date and time. These logs are used for security and to keep the site running.
Cookies and advertising (Google AdSense)
Sumly displays ads served by Google AdSense. Google and its advertising partners use cookies and similar technologies to serve ads, including personalized ads based on your visits to this and other websites, and to measure ad performance. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and other sites on the internet.
You can opt out of personalized advertising from Google at Google Ad Settings, and learn more at How Google uses information from sites that use its services. You can also opt out of personalized advertising from many participating providers at aboutads.info.
Visitors in the European Economic Area, the United Kingdom and Switzerland may be shown a consent message, provided through Google's consent tools, that lets them choose whether to allow personalized advertising.
What we don't do
Sumly doesn't require an account, doesn't collect your name or email through the calculators, and doesn't sell your personal information. If you email us, we use your email address only to reply.
Children's privacy
Sumly isn't directed to children under 13, and we don't knowingly collect personal information from them.
Your choices and rights
You can clear or block cookies through your browser settings at any time. Depending on where you live, you may have rights to access or delete personal information about you. Contact us to make a request.
Changes to this policy
We may update this policy as the site or the law changes. The "last updated" date above shows the current version.