Delete your On That Day account

Last updated: August 24, 2026

This page explains how to delete your On That Day account and what happens to your data. On That Day is published by Mehmet Ali Çopurlar (com.yadegar.ios on the App Store, co.onthatday.android on Google Play).

How to request account deletion

By email — available to everyone

Email support@onthatday.co from the address you signed up with, asking us to delete your account. Say whether you want memories you added to capsules that other people will keep using to be kept (left in place, un-attributed) or removed entirely; if you don't say, we keep them.

We confirm the request against your sign-up address before acting on it, and we action emailed requests within 30 days.

This route works whatever device you use, and it is the route to use if you have lost your recovery passphrase and can no longer sign in anywhere.

From inside the app — iPhone, iPad and Android

If you are signed in, you can delete your account without contacting us:

1. Open On That Day.
2. Go to Account.
3. Tap Delete account.
4. Choose what happens to memories you added to capsules that other people will keep using — leave them in place, un-attributed, or remove them entirely.
5. Confirm. The deletion is immediate and cannot be undone.

There is no grace period and no recovery window: once you confirm, it is done.

If you are the only person who can run a capsule, the app tells you before you confirm, and names the capsules — deleting your account deletes those capsules for everyone in them.

What is deleted

Immediately, and irreversibly, when you confirm:

• Your email address and display name.
• Your date of birth, if you added one.
• Your profile photo, including the stored image itself.
• Your encryption identity — the public key and the passphrase-wrapped private key we hold on your behalf. Once this is detached your account cannot be restored, and signing in again from the same device creates a new account.
• Your sign-in sessions and registered devices, including any push notification tokens. Where you signed in with Apple, we also revoke the token Apple issued us.

Capsules where you were the only owner are deleted in full — every memory, every stored file, and all membership, invitation and event records belonging to them.

Capsules that other people will continue to use are not deleted. What happens to memories you added there is the choice you make in step 4 above. In either case, the right to run the capsule passes to the longest-standing remaining owner, so a capsule is never left with nobody able to manage it.

Permanent removal of the underlying records runs on an automated cleanup that executes hourly, so it normally completes within 24 hours of your request.

What is kept, and for how long

• Error diagnostics. When something goes wrong in the app we record a small technical report — which API route failed, the HTTP status, the kind of error, the app version, OS version, device model and language. These reports are not linked to your account: they carry a random identifier generated on your device that is not your user ID and cannot be used to look you up. They are deleted after 90 days.
• A referential placeholder. If you contributed memories to someone else's capsule that still exists, an empty, scrubbed record may remain so that capsule's own history stays intact. It contains no name, no email address and no key material.
• Records we are required to keep for legal compliance or to prevent abuse, for as long as the relevant obligation applies.

A note on your capsule content

Photos, videos, voice notes, letters, captions and any location you attached to a memory are encrypted on your device before they are uploaded. We store them only as ciphertext and we cannot read them. Deleting your account deletes that ciphertext according to the rules above; because we never hold the keys, there is no readable copy of your content for us to retain.

Questions about any of this: support@onthatday.co.