Draft for review. Not yet in force.

Privacy notice

Braincrumb is run by Alke Technologies Ltd, a company registered in England and Wales. We are the controller of the personal data described here. Questions or requests: alketechnologiesltd@gmail.com.

What we keep

Your email address, and when your account was created and confirmed.
Your onboarding answers: the reading-quiz picks (or that you skipped it) that set your starting profile.
What you do in reports: cards viewed, answers given, terms and sources opened, and any “Something wrong?” report you send, including what you write in it.
Your ratings: how well you know each concept, worked out from your answers.
Your placements: the answers you gave when finding where to start a course (including “I don't know”), the report it started you at, and whether you skipped it.
Your course choices: for each course you start, how deep you want to go, how much time you have a week and what you want from it, with each change you make.
Your email choices: whether you want review emails and at what time, and the days we sent one. Kept with your account and deleted with it.
Your timezone, and when you changed it. Your browser tells us when you sign up. It sets when your day starts, for your streak and the Monday unlock.
Sign-in sessions: when each browser signed in and when that session ends.

We use these to run Braincrumb for you: to show your progress, choose your daily review and keep your place across devices. We do not sell them, and we do not use them for advertising.

Where it is kept

On Microsoft Azure in the UK South region. Emails are sent through Azure Communication Services with its data location set to the UK. Reports are written ahead of time, so nothing you do on Braincrumb is sent to an AI model provider. If that changes, this notice will say so first.

Cookies and storage

Only what Braincrumb needs to work, so there is no cookie banner:

folio_account: keeps you signed in on this browser, for up to 90 days.
folio_session: holds your onboarding answers before you have an account, for up to 7 days.
Your theme choice, a note that this browser has an account, and a note that it has already asked whether to switch to this device's timezone, kept in the browser itself.

No analytics, no advertising and no tracking cookies.

How long we keep it

Your account data: until you delete your account.
Onboarding answers from before you had an account: 7 days, unless you create one.
Counts of how many sign-in emails an address has asked for, kept as one-way codes to stop abuse: 1 day.
Server logs (the address of each request, its result and timing; some addresses contain your account number): 30 days.
Database backups: 7 days.

Your rights

From Me you can download everything we keep about you as a file, or delete your account. Deletion happens at once: your email address and everything linked to your account go. Copies in backups and logs age out within 30 days.

Two things stay, with no account number, no email and only the day (not the time), so they cannot be traced back to you: each answer you gave, which helps us judge how hard each question is; and any “Something wrong?” report you sent, because the card it is about may still need fixing.

You can also ask us to correct your data, or object to how we use it, by email. If you are unhappy with how we handle your data, you can complain to the Information Commissioner's Office (ico.org.uk).

Age

Braincrumb is for readers aged 18 and over. We don't knowingly hold data about anyone younger; if you think we do, email us and we will delete it.