RETENTION
How long we keep things
The retention schedule, in one table.
Version 1.1. Effective 10 September 2026.
The schedule
| What | How long we keep it | What happens then |
|---|---|---|
| Your memory, while your account is open | For as long as your account is open | Nothing. It is yours. |
| Your memory, after you close your account | Soft-deleted immediately, permanently anonymised within 30 days | Anonymised, and not recoverable |
| Operational backups | 30 days | They roll off automatically. A restore never brings back memory you asked us to erase. |
| Your audit log: entries recording that something was read | 90 days | Deleted |
| Your audit log: every other entry | Full detail for 275 days, then the who, what and when are kept without the detail | Anonymised with the rest of your data when you close your account |
| Your audit log: billing and subscription entries | Six years from the end of the relevant tax year | Deleted. We are required by law to keep these. |
| Account and billing records | Six years from the end of the relevant tax year | Deleted. We are required by law to keep these. |
| Newsletter subscription | Until you unsubscribe | Deleted |
| Form and support messages | 24 months | Deleted |
| Rate-limiting hash of your IP address | 24 hours | Deleted |
| Website analytics | Aggregate only, nothing that identifies you | No retention period applies |
Your memory, while your account is open
How long we keep it
For as long as your account is open
What happens then
Nothing. It is yours.
Your memory, after you close your account
How long we keep it
Soft-deleted immediately, permanently anonymised within 30 days
What happens then
Anonymised, and not recoverable
Operational backups
How long we keep it
30 days
What happens then
They roll off automatically. A restore never brings back memory you asked us to erase.
Your audit log: entries recording that something was read
How long we keep it
90 days
What happens then
Deleted
Your audit log: every other entry
How long we keep it
Full detail for 275 days, then the who, what and when are kept without the detail
What happens then
Anonymised with the rest of your data when you close your account
Your audit log: billing and subscription entries
How long we keep it
Six years from the end of the relevant tax year
What happens then
Deleted. We are required by law to keep these.
Account and billing records
How long we keep it
Six years from the end of the relevant tax year
What happens then
Deleted. We are required by law to keep these.
Newsletter subscription
How long we keep it
Until you unsubscribe
What happens then
Deleted
Form and support messages
How long we keep it
24 months
What happens then
Deleted
Rate-limiting hash of your IP address
How long we keep it
24 hours
What happens then
Deleted
Website analytics
How long we keep it
Aggregate only, nothing that identifies you
What happens then
No retention period applies
Read entries are the record that something was looked at; they are the largest and least useful part of the log, so they roll off first. The record of what changed, and who changed it, is kept.
A restore from backup never resurrects memory you asked us to erase.
Questions about anything on this page: hello@ai-twin.co.uk.
Change log
- 10 September 2026. Audit log retention set out in three rows: read entries, other entries, billing entries.
- 1 September 2026. First published. The retention schedule in one table.
AI Twin Limited is a private company registered in Scotland, company number SC866947. Registered office: 272 Bath Street, Glasgow, G2 4JR. Registered with the Information Commissioner's Office, registration ZC044489.