Ditto Cal
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Privacy Policy

The privacy of your data — and it is your data, not ours! — is a big deal to us. In this policy, we lay out: what data we collect and why; how your data is handled. We promise we never sell your data: never have, never will.

This policy applies to Ditto Cal (https://dittocal.com), which is built by Joel Chippindale and owned and operated by his company Monkey's Thumb Ltd.

What we collect and why

Our guiding principle is to collect only what we need. Here’s what that means in practice:

Data we collect from Google

When you sign up for Ditto Cal with your Google Account, you give us permission to collect and store the following information:

This information is stored in the data centres that we use which are based in Frankfurt in the EU.

We’ll never sell your personal info to third parties, and we won’t use your name or company in marketing statements without your permission either.


We use Plausible Analytics to track overall trends in the usage of our website. Plausible Analytics collects only aggregated information, which does not allow us to identify any visitor to our website. For more information, please visit the Plausible Analytics Data Policy.


We use first-party cookies to manage your session on the Ditto Cal site.


Have any questions, comments, or concerns about this privacy policy, your data, or your rights with respect to your information? Please get in touch by emailing us at joel@ethicalbooksearch.com or writing to us at Monkey's Thumb Ltd. 99 Pembroke Road, London, N10 2JE, UK, and we’ll be happy to answer them!