Subprocessors
The list is short on purpose. Each row is somebody who receives something, and it says what.
Last updated: 18 October 2026 · If anything on this page does not match what you see in the app, write to info@isna.app — that is a mistake and it will be corrected.
The list
Hetzner Online GmbH. Servers, database, object storage and backups. Helsinki, Finland — inside the EU. No transfer outside the EU.
Resend, Inc.. Sending the mail the application sends: email confirmation, household invitations, reminders and the weekly digest. United States, under standard contractual clauses and the EU-US Data Privacy Framework. They receive the recipient’s address and the content of the message itself.
Lemon Squeezy, LLC. Subscription billing and invoicing, as seller of record. United States, under standard contractual clauses and the EU-US Data Privacy Framework. For billing, Lemon Squeezy is a separate controller rather than our processor. It becomes active only once paid plans are switched on.
Google, Mozilla, Apple. Delivering browser notifications, and only if you switch them on. The message travels through your browser’s notification service; its content is encrypted, and turning notifications off removes this row for you entirely.
Who is not on the list
There is no analytics tool, no advertising network, no support tool with access to data, and no third-party error tracking service. Support runs on email and arrives in the same inbox as everything else.
Changes to the list
Any change to this list is announced at least 30 days beforehand to the account’s email address. Within that period you can object, and if the objection cannot be resolved you can end the agreement and take everything with you.
Start with the one deadline you cannot afford to miss.
Set your family up in two minutes. Thirty days of everything, and it does not ask for a card.