Legal

Cookie policy

The small files Mannerist stores on your device, and why.

Last updated 4 November 2026

What cookies are

Cookies are small text files a website saves on your device. Similar technologies, such as local storage, work in the same way, and this policy covers them too.

The one cookie we use

Mannerist uses one cookie, and it is essential. It keeps you logged in. Without it you could not use your account, so we do not need to ask for your consent.

About the cookieDetails
Namesession
What it doesKeeps you logged in as you move around the site
How long it lastsIf you tick "Keep me logged in for 7 days": 7 days from when you log in, or until you click Log out, whichever comes first. If you do not tick it: until you click Log out or close your browser, or 24 hours, whichever comes first.
Who can read itOnly our own API. It is marked HttpOnly, so scripts on the web page cannot read it.
Where it is sentOnly to our own API, and never to anyone else
Used for tracking or advertising?No

One small item in your browser storage

This one is not a cookie. It is a small item kept in your browser's local storage. It is essential too, so we do not need to ask for your consent.

About the itemDetails
Namemannerist_device_id
What it isA random ID number, made by your browser the first time you visit
Why we use itWhen you connect Mannerist to HMRC, the law requires us to send HMRC an ID for your device
How long it lastsIt stays on your device until you clear your browser data
Used for tracking or advertising?No. It is not used for advertising, or to follow you across other sites.

Tracking and advertising

We do not use advertising or tracking cookies, and we do not load anything from advertising or tracking companies.

Managing cookies

You can block or delete cookies in your browser settings. If you block the session cookie, you will not be able to log in to Mannerist.

Contact

Questions about cookies? Email help@usemannerist.com.