We don’t collect your data.
Mycrometer was built to work without knowing anything about you. This page explains what that means in practice.
Last updated 11 November 2026.
The web version
- Your photos, scales, samples and settings are stored only in your browser, on your device. They are never uploaded to us or anyone else.
- There are no accounts, no cookies, no analytics and no advertising. The page loads nothing from other websites. Its security policy forbids it from sending data anywhere.
- The website is delivered by Cloudflare, our hosting provider. Like any web host, Cloudflare processes technical details of each request (such as your IP address) to deliver the pages and protect against attacks. We don’t use those logs to identify or track anyone.
The Mac and iPhone app
- Your data is stored on your device. We receive nothing.
- iCloud sync (Pro) keeps your scales and samples, and photos if you choose, in your own private iCloud database. That data belongs to your Apple Account, and we can’t see it. Apple’s privacy policy covers iCloud.
- Purchases are handled entirely by Apple. We don’t receive your name, email or payment details.
- The app uses the camera only when you take a photo or open the live view, and photos only when you pick them. Nothing is sent anywhere.
If you email us
If you write to hello@mycrometer.app, we keep your message and email address to reply to you, and for no other purpose. Ask and we’ll delete them.
Who we are
Mycrometer is made by Field Mycologist UK (fieldmycologist.uk). We handle the little personal data we ever receive (emails) in line with UK data protection law (UK GDPR). Questions: hello@mycrometer.app.
If this policy changes, the new version will be posted here with a new date.