v3.4Legal

Privacy Policy

Version
3.4
Effective
12 October 2026
Governing law
England & Wales

In plain English

We hold your business details to run your Slate account, and your customers’ details only to run Slate for you. We never sell them, never show you adverts, and use no advertising or analytics cookies.

A small number of companies help us run Slate, and each is named below with what it sees. Your customers’ details are yours: you can take a copy at any time, remove any customer, and ask us to delete the lot.

Write to privacy@slateos.co.uk about any of it.

This summary is for orientation only. It is not part of the agreement and does not override anything below.

01Who we are, and our two roles

1.1Slate is run by Slate Systems Ltd, a company registered in England and Wales (company number 17243517), 71–75 Shelton Street, Covent Garden, London, WC2H 9JQ. Write to us about your data at privacy@slateos.co.uk.

1.2We have two roles, depending on whose details they are:

Whose detailsOur roleWhat that means
You, your business and your crew, as Slate’s customerControllerWe decide how they are used, to run your account. This policy explains how.
Your customers, your callers and your subcontractorsProcessor, for youYou decide how they are used; we only run Slate for you (Terms, Schedule 1). Your customers should ask you about their details first.
People who ask us for a walkthrough, or follow a referral linkControllerOur own sales, section 4.

02What we hold about you

WhatWhy we hold itLawful basis
Your name, email address and sign-inTo give you an account and sign you inContract
Your direct line: the mobile or landline your office line ringsTo put calls through to youContract
Your business: name, trading name, address, website, review pages, logo, company and VAT numbers, business type, and bank details if you add themTo run Slate and put your details on your documents and messagesContract
Your carrier registration and, for a sole trader or partnership, a photo IDThe carrier must know who holds a UK number before it gives you oneContract, and the carrier’s legal duty to know who holds its numbers
Your plan and payments: Stripe’s references for you, your trial, payments, refunds, referrals and founding place (your card itself is held by Stripe, never by us)To take payment and apply your planContract
Which version of our terms and this policy you accepted, when, and from which internet addressTo show what you agreed toLegitimate interests
Messages to us: support conversations and suggestionsTo help you and improve SlateContract; legitimate interests
Notices in Slate, and your devices’ addresses for notifications if you switch them onTo tell you what needs youContract
Records of what Slate did for you, and its counts: calls caught, texts and emails sentTo run Slate and show you your numbersContract
What the Advisor makes for you: your briefs and the figures in them, your questions and their answers, the moves you marked, a price test if you start one, where your customers found you and what you pay for listings if you tell it, and your Google listing’s identifier if you pick itTo write your monthly brief and answer your questionsContract
Technical records: errors, and the counts that limit how fast any one account or internet address can use SlateTo keep Slate working and secureLegitimate interests

2.1Your crew: we hold each member’s name, email address, sign-in and invitation, and how far they are through the run-through, to let them use your account. Their sign-in is their own.

2.2Your business details are printed on the quotes, invoices and emails you send, so your customers see them. Your photo ID is seen by nobody at Slate except, if it is needed to sort out your registration, a founder, and every time a founder opens one it is recorded.

2.3Finding your company. If you are a limited company and look it up when you set up, what you type is sent to Companies House, the public register, and your company’s name, number, registered office and directors come back to fill in the form (contract). Only what you confirm is kept; the other directors’ names are shown for you to pick from and are not stored.

03Your customers’ details

3.1Slate holds what you and your crew put in it, and what Slate records for you: your customers’ and enquirers’ names, phone numbers, email addresses, addresses and postcodes; jobs, notes and job details; the calls to your office line and the texts and emails with your customers; quotes, invoices, bookings and payments; reviews; subcontractors on your jobs; and email addresses that have bounced or asked not to be contacted.

3.2When somebody rings your office line and you miss it, their number, the time and whether a text went are recorded, and the job lands on your board.

3.3We process all of this for you, as the Terms (Schedule 1) set out. You can take a copy at any time (Export in Slate), remove any customer completely from their page, and ask us to delete your whole account.

3.4The Advisor (Terms, clause 14). To write your brief, Slate sends Anthropic figures it has counted from your account, your first name, trade and town, and short descriptions of jobs, with customers’ names, phone numbers, email addresses and street addresses taken out first. Anthropic handles it under its commercial terms, which do not let it train its models on what we send. A founder may read a brief before it reaches you. Switch the Advisor off and none of this is sent.

3.5The Advisor also reads public information that is about nobody in particular: HM Land Registry’s record of homes sold in your postcode district, and the public home pages of the firms you name and others near you, which Anthropic’s web tools open. Slate keeps only whether each page shows certain things, and Google’s scores for it, never the page.

04Other people we hold details about

4.1Walkthrough requests. If you ask for a walkthrough on slateos.co.uk, we hold your name, mobile and email address, and a scrambled form of your internet address to stop abuse, and send them to the founders so one of us can ring you (legitimate interests; or steps you asked for before a contract). Ask us and we delete them.

4.2Referral links and codes. If you follow a business’s referral link, a cookie remembers its code for 60 days, so the right business is credited if you sign up (legitimate interests). If you start Slate through a business’s link or code, that business sees your business name, where you stand (on your trial, paid, or credited) and the dates of those steps, and nothing else, so it can see what it has earned (legitimate interests). You are told this before the code counts. So that nobody can earn credit by referring themselves, we check whether the two accounts share a mobile number, a company number or a card (Stripe gives us a card’s fingerprint, never the card itself), and we look at whether they signed up from the same internet address or business address. Those last two are never used on their own to refuse a referral (legitimate interests: preventing fraud).

05Who else handles data

These companies handle data for us, each only for the job named. We have contracts with each that protect your details, and we will email every account at least 30 days before we add or replace one.

CompanyWhat it does for SlateWhat it sees
VercelRuns the Slate app, and stores files: documents, logos, templates and photo IDs (encrypted)Everything passing through the app, and its request logs
NeonOur databaseEverything stored in Slate
Clerk (with Svix, which carries its messages to us)Sign-in and accountsYour name, email address and sign-in
StripeTakes your payments to us; and, on your own Stripe account, your customers’ payments to youYour billing details; your customers’ payment details, on your account
TwilioYour office line: calls, the missed-call text, and the carrier registrationCallers’ numbers, the missed-call text, your direct line, and your registration details and photo ID
ResendSends and receives the email Slate sends for you, and our own email to youEmail addresses, messages and attachments
Amazon Web ServicesThe internet records for your sending address; and, if we move to it, sending emailYour sending address; if sending, as Resend
UpstashLimits how fast Slate can be used, and times scheduled sendsAccount and internet-address counters; the reference of a scheduled send, not its content
SentryTells us when something goes wrongThe error and your account’s reference, with cookies and sign-in details removed
AnthropicWrites your monthly brief and answers your questions about your numbers; finds and opens the public websites of firms near you; and reads unfamiliar label words on a template you upload, when switched onFigures counted from your account, your first name, trade and town, job descriptions with customers’ names, numbers and addresses taken out, your website’s address, and those label words
GoogleWhen you ask, shows what Google Maps lists for your trade near you; and times how fast your website and the ones it is compared with load, and runs Google’s SEO checks on them (PageSpeed Insights)Your trade, the area around your business postcode, and the addresses of your website and the ones it is compared with. What Google Maps sends back is shown to you and not kept, apart from your own listing’s identifier if you pick it
postcodes.ioTurns postcodes into positions on the map in Your numbers, and finds your area for the AdvisorPostcodes only
Apple, Google and MozillaDeliver notifications to your devices, if you switch them onAn encrypted notification it cannot read
ZohoOur own mailboxes, when you email usYour email to us
GitHubKeeps our code, and makes our nightly backup and keeps it for 90 daysEverything stored in Slate while the backup is made; after that, only the encrypted copy

5.1Your customers’ card payments to you are between them, you and Stripe, on your own Stripe account; Stripe’s privacy terms apply to them.

5.2We do not sell or rent anybody’s details, or share them with advertisers.

06Emails and texts

6.1Emails about your account always come, while you have an account: signing in, your trial and your first payment, payments and receipts, a payment that failed, your office line and your sending address, your crew, replies to your messages to us, and your monthly figures.

6.2Tips and offers. During your trial the founders send a few letters with tips, and now and then your monthly figures carry an offer (paying yearly, or referring a trade). Every one has a link to stop them, and once you use it none come again (legitimate interests; you are an existing customer).

6.3To the founders. Slate tells the founders about events on accounts (a trial started or stopped and why, a line held up, a payment problem), naming the business and its contact details, so that one of us can help.

6.4Texts to your callers. The missed-call text is sent for you, from your office line, to UK mobiles only. If a caller replies STOP, they are never texted by your business through Slate again, until they reply START.

07Cookies and your device

WhatWhereWhyHow long
Sign-in cookiesSet by ClerkTo keep you signed inUntil you sign out
A referral cookieOnly if you follow a referral linkTo credit the business that sent you60 days
Your preferencesYour browser’s local storageHow you sort your board, customers and diary, your usual deposit, a plan you picked before signing in, whether you have seen our welcome, and whether Slate is installed on this phoneUntil you clear them
A copy of your board, and changes made without signalYour browser, encryptedSo Slate works when the signal does notIts key is destroyed when you sign out, unless changes are still waiting to be sent
Copies of pages you openYour browserSo Slate opens without signalRemoved when you sign out
The offline page and Slate’s own filesYour browserSo Slate loads quicklyReplaced with each new version

7.1We use no advertising or analytics cookies, and nothing that follows you around other websites.

08Keeping data safe

  • Everything travels encrypted (HTTPS), and is stored with providers that encrypt their disks.
  • We encrypt again, ourselves: photo IDs and any saved mailbox passwords (AES-256-GCM), the copy of your board on your device, and our backups.
  • Each account can reach only its own records, links to your documents are signed so they cannot be guessed, and every part of Slate limits how fast it can be used.
  • Card numbers never reach us: Stripe takes them.
  • Only the founders’ own sign-ins reach our admin tools, and every change made there, and every look at a business’s customers, is recorded.
  • Photo IDs are deleted as soon as the carrier approves the registration, and after 90 days whatever happens.

8.1If your details are lost, stolen or reached by somebody who should not have them, and it puts you at risk, we tell you, and we tell the ICO when the law requires it.

8.2Found a security problem? Tell us at security@slateos.co.uk.

09Data outside the UK

9.1Several of the companies in section 5 are based in the United States and may handle data there. Where they do, the transfer is protected by the UK’s rules: the country or company is covered by UK adequacy regulations (including the UK extension to the EU–US Data Privacy Framework), or the transfer is made under the UK’s International Data Transfer Addendum to the EU standard contractual clauses.

10How long we keep things

WhatHow long
Your account, your business details and your customers’ detailsWhile your account is open. After you stop, until you ask us to delete it (Terms, clause 10.4), so you can take a copy or come back
Photo IDsUntil the carrier approves your registration, and never more than 90 days
Your office lineHeld 30 days after your plan ends, then returned to the carrier
Notices in Slate you have read90 days
Your briefs, your questions and their answersWhile your account is open, and deleted with it
What Google Maps showed youNot kept at all: read when you ask and gone when you leave the page
Our record of what founders change in the admin tools, and of accounts deleted (with the account’s email address and business name)Two years
The record that an account was deletedFor good, to prove it was done: the account’s reference, and a scrambled form of its sending address so that address is never given to another business
Our encrypted backups90 days, then gone
Rate-limit countersAt most 24 hours
Records of messages from our providers (to handle each only once)30 days
Error reports and request logsAs long as Sentry and Vercel keep them, which is weeks, not years
Walkthrough requestsUntil you ask us to delete them

10.1Stripe keeps its own records of payments, as the law requires of it, and the carrier keeps its own record of your registration.

11Your rights

11.1You have the right to:

  • see what we hold about you, and have a copy;
  • correct it (most of it you can change yourself, in Settings);
  • take it with you: Export in Slate gives you your customers, jobs and their reviews, diary, money, costs, and texts, emails and calls, as ordinary files, at any time;
  • have it deleted: we delete your account and everything in it, within a month of your asking, apart from what section 10 says we keep;
  • object to what we do on the basis of legitimate interests, or ask us to restrict it.

11.2Ask at privacy@slateos.co.uk. We answer within a month, and it costs nothing.

11.3If you are one of our customers’ customers, ask the business you dealt with first: they decide what happens to your details. We will help them, and if you write to us we will pass your request on.

Not happy with us?

Tell us first and we will try to put it right. You can also complain to the Information Commissioner’s Office, at ico.org.uk or on 0303 123 1113.

12Changes to this policy

12.1Each version of this policy is dated. When we change it, Slate asks you to accept the new version the next time you use it, and until you do you can still take a copy of your data and stop Slate.

Slate is for businesses

12.2Slate is for businesses and is not meant for anyone under 18.

Questions about this document? Write to legal@slateos.co.uk, or by post to Slate Systems Ltd, 71–75 Shelton Street, Covent Garden, London, WC2H 9JQ.