What stays on your device and what is shared
and the choices that are yours.
Gestion keeps a local working copy. After activation, local features do not require a permanent connection.
Connecting lets you share saved changes with authorised members and use enabled online services.
Supabase Auth currently manages identity and session. Tokens used by the website are placed in HttpOnly cookies; this mechanism does not copy the complete business database.
Each archived PDF receives a SHA-256 hash, a version and a calculated retention deadline. A correction adds a version instead of overwriting the original.
The licence and update packages use signatures checked by the application before acceptance.
Zentra can create and restore a full backup. You choose its location and must regularly keep an external copy, then test its restoration.
The vault retains requested PDF versions with a calculated deadline. It never backs up the entire SQLite database and is not presented as certified WORM storage.
The account holder and administrators can upload the company database and its attachments, including payroll. The daily copy is enabled on request and requires the application to be open and connected. File hashes and database integrity are checked during restoration. Backups remain recoverable from the account after cancellation.
Keep an external copy and check that it can be restored. Complete backups cover the business database and its attachments; they do not merge changes made separately on several devices.
Authentication, contact details and continuous sharing of the complete database from version 1.67, on the Supabase project created in the Zurich region (eu-central-2). Revisions and files remain private, and every request checks the member, their role and their device. Sharing includes payroll and requires explicit activation.
Storage of access credentials, PDF archives, private project files and complete backups enabled by the company. Project files synchronise between authorised devices. The Supabase project location does not guarantee Swiss storage of this D1/R2 data.
Subscription payment and Stripe billing when subscribing is enabled. Card data does not pass through the Zentra form.
Hosting of the public website and its APIs on Cloudflare Workers, available at zentraapp.ch, with traffic protection.
Built-in updates verify a package signature. The public Windows installer is not yet signed with an Authenticode certificate and may display “unknown publisher”. The macOS build is available in early access with an ad hoc signature and without Apple notarisation. On both platforms, built-in updates verify the package signature before offering installation. On Mac, Keychain may request renewed access authorisation after an update of this early-access version.
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