Privacy.

Updated · 8 May 2026

Tack collects no data. Everything you log stays on your iPhone, in the app's local database (SwiftData). Nothing is sent to a server, the cloud, or any third party.

What we know about you

Nothing. The app has no backend.

What lives on your device

• Your logged expenses (date, amount, tag, mode).
• Your settings (monthly budget, custom tags, biometric lock).

This data lives only in the iPhone's local storage — you are the only one with access.

Permissions

The app requests one optional permission:

• Face ID / Touch ID — only if you enable the biometric lock in settings. Authentication happens inside Apple's Secure Enclave; we never see what the sensor reads.

Third parties

No analytics SDKs, no tracking, no ads, no social login, no bank integrations. Tack is offline-first by design — Brandbook §05: silence > alarms.

Children

Tack is not directed at children under 13 and collects no data of any age — because it collects no data.

Backups

App data is included in your iCloud Backup if you have it enabled on your iPhone. That backup is end-to-end encrypted by Apple — we still don't have access.

Changes to this policy

If anything changes (for example, if we add cloud sync someday), we'll update this page with a new date and — if the change affects data — surface it in the app before it takes effect.

Contact

Questions, complaints, or deletion requests: hello@tackit.tech.