1. No accounts
AllScienceTools does not offer user accounts, logins, or cloud profiles. You never create a password with us. Personalization (favorites, recent tools, collections, practice, history) stays on this device only.
- We do not store your calculator inputs on our servers.
- Tool inputs live in your browser and are not uploaded as part of calculation.
- There is no sign-up and no sign-in — and none is planned for this product.
2. Local browser storage
We may store the following only in your browser (localStorage / cookies):
- Saved / favorite tools
- Recently used tools
- Named collections of tools
- Per-tool calculation history (inputs/results you ran)
- Practice / spaced-repetition progress
- Cached currency exchange rates (with a static fallback)
- Theme preference
Clearing your browser site data removes this information. You can also clear it from this page, or export a backup first from Saved Tools:
Download or restore favorites, recent tools, collections, history, and practice data as a JSON file on this device.
3. Analytics & advertising
To maintain and improve the platform, we use third-party services:
- Google Analytics: anonymous traffic patterns (page views, browser types).
- Advertising: third-party networks may use cookies to personalize ads.
4. Your rights
Because we do not hold personal accounts, most personalization data never leaves your device. You can delete it anytime via browser settings or the button above. For questions about analytics cookies or this policy, contact us.