Privacy · SPI physics console
Privacy Policy
The honest short version: this is a static study site that collects almost nothing, runs no third-party analytics, and shows no ads.
Last updated: 2026. We keep this policy short for the same reason we keep your study list short — only what matters.
The short version
What we collect
Very little, and none of it identifies you personally under normal use:
| Data | Why | Where it lives |
|---|---|---|
| Quiz progress & results | So a practice session can resume and score itself. | Your browser only (local storage). Never transmitted to us. |
| Standard server logs | Basic security and reliability of the hosting. | With our hosting provider, kept briefly, then rotated out. |
| Emails you send us | To read and answer your message. | Our inbox, kept only as long as needed to help you. |
Your quiz progress stays on your device
The practice test runs entirely in your browser. Which questions you have answered, your score, and any filters you set are saved with your browser's local storage on the device you are using. That data does not travel to a server and is not linked to any identity. Clear your browser storage — or use private browsing — and it is gone, no request to us required.
Third parties we do rely on
A free site still runs on someone's machines. The short list of outside services involved, and only these:
Static hosting / CDN
The pages and fonts are served from a hosting and content-delivery provider, which processes basic request logs to deliver the site and keep it up. Fonts are self-hosted here, so your browser does not call an external font service.
App-store links
Our “Get the app” button routes you to the Apple App Store or Google Play. Once you leave for those stores, their own privacy policies apply — not ours.
Your choices
Because we collect so little, control is mostly already in your hands: browse without an account, clear your local storage to wipe quiz progress at any time, and decline the optional app entirely — the site works fully without it. If you have emailed us and want your message deleted, ask and we will remove it.
Children's privacy
This is a professional certification study tool aimed at adults preparing for the SPI exam. It is not directed at children, and we do not knowingly collect information from them.
Changes and contact
If this policy changes, we will update the date at the top of the page. Since we run no trackers, there is rarely much to change. Questions about privacy? Email hello@spiultrasoundprep.com and a real person will answer.