Delete your data
Cal 3D has no user account. Your data lives on your device — here is how to remove all of it in two steps.
On this page
How to delete your data
App: Cal 3D · Developer: Noah Sioly UG (haftungsbeschränkt)
Cal 3D has no user account. You never sign in, and we keep no list of users. Your data lives solely on your device — which is why you delete it yourself, without having to ask us.
Option 1 — everything at once
- Press and hold the Cal 3D icon on your home screen.
- Choose Remove App, then Delete App.
This irreversibly deletes your diary, profile, goals, progress and settings. Nothing is left behind with us, because nothing ever arrived with us.
Option 2 — delete the data, keep the app
- Open Cal 3D and go to Profile.
- Scroll to the Account Actions section at the bottom.
- Tap Delete Account and confirm with Delete.
Directly above it you will see Log out. That is not a second deletion and not a sign of a hidden account: it only clears the display name and profile picture on this device. Your diary stays. There is nothing to sign out of.
This permanently deletes your logs, goals and weight history on this device, along with the stored profile and progress photos. Pending meal reminders are cancelled at the same time, so no notification arrives for data that no longer exists. The app is then back in its initial state.
The menu entry is called “Delete Account” for historical reasons, although no account exists. What it does is exactly what is described above: a complete wipe on this device.
Important: this does not end your subscription
A running subscription continues even after the app is deleted. It has to be cancelled separately in the store:
What still exists afterwards — and what does not
| Data | After deletion | Why |
|---|---|---|
| Diary, profile, goals, progress | After deletioncompletely gone | Whyonly ever lived on your device |
| Photos of your meals | After deletionnothing held by us | Whynever stored on our side, only passed through — what the model provider does with them is in the privacy policy |
| Hash of your IP address | After deletionuntil the quota table is next cleaned up | Whya per-day row in the quota table, never read again once the day rolls over. A clean-up removes old rows, but it is not on a schedule, so we name no deadline we cannot keep. The IP address cannot be recovered from the hash. |
| Purchase and billing data | After deletionstays with Apple | Whystatutory retention at the store; we have no access to it |
| Emails you sent us | After deletionon request, otherwise at most six months | Whythey sit in our mailbox — see below |
| Device backup (iCloud, computer) | After deletionmay still hold a copy | Whybackups are yours, not ours — delete older ones yourself if needed |
Requesting deletion from us
If you have written to us, that correspondence sits in our mailbox. We delete it on request:
You can also write to us: Noah Sioly UG (haftungsbeschränkt), Hoheluftchaussee 139, 20253 Hamburg, Germany.
We need no ID and no account details to process this — there is no account to match you against. Writing from the same address is enough.
If accounts ever exist
Should we introduce accounts — to sync your diary between devices, for instance — deletion will be possible directly in the app, and this page will be updated accordingly. As long as this page says there is no account, there is none.