01
No accounts, no personal data.
What Banks Hide does not require sign-ups, accounts, or any personal information. You can use every calculator without a name, email, or anything else that identifies you.
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Privacy policy
LAST UPDATED MARCH 2026
02
Your calculations stay on your device.
Calculator inputs are stored in your browser's localStorage so your numbers persist between visits. This data never leaves your device. It is not transmitted to any server.
03
Analytics.
We use Google Analytics to understand which pages are visited, how long sessions last, and rough geographic regions. Analytics uses cookies. You can opt out with the Google Analytics Opt-out Browser Add-on, or by blocking analytics cookies in your browser.
04
No data selling.
We do not sell, rent, or share data with third parties. There are no affiliate trackers and no data brokers on this site. Display ads (currently off; planned via Google AdSense to keep the site free) will use cookies — when that ships we'll update this section with opt-out details.
05
Questions.
Write to support@whatbankshide.com. Issues against the site code are public-record on the project repository.