Data Storage
All user data including saved calculations, logbook entries, and protocol plans is stored exclusively in your browser's localStorage. No data is transmitted to any server. We do not collect, store, or process any personal information.
No Tracking
Peptide Performance Calculator does not use analytics tracking, advertising cookies, or user behavior monitoring. We do not use third-party tracking scripts.
Cookies
We use minimal functional cookies only — specifically for theme preference (dark/light mode). No advertising or tracking cookies are used.
No Account Required
Peptide Performance Calculator does not require account creation and does not collect email addresses, names, or any personal identification information.
Data Deletion
Since all data is stored locally in your browser, you can delete it at any time through Settings > Data Management, or by clearing your browser's localStorage for this site.
Third Parties
We do not share any data with third parties. We do not sell data. We do not have advertising partners with access to your information.
Changes to Policy
We may update this privacy policy. Continued use of the platform after changes constitutes acceptance of the updated policy.
Last updated: 3/11/2026