Ebook readers
Calibre privacy rating
Free and open-source e-book manager for organizing, converting and reading e-books, with a built-in viewer, editor and device syncing.
Summary
Calibre scores 50 out of 100 (grade D) on the ebook readers criteria. It meets 2 of 4 criteria: open source and no ads or data sales. It does not meet no trackers or telemetry and independent audit.
Score 50 out of 100. How scoring works
Criteria
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Yes
Open source Weight 3 of 3
Is all the source code needed to run the product public?
Licensed under GPL-3.0.
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No
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
The website loads Google Analytics. The desktop app has no analytics.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Free software funded by donations, with no ads.
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No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit is published.