Privacy Policy

Last updated August 1, 2026

The short version: the DataTally app collects nothing about you and sends nothing anywhere. The only personal data we ever handle is the email address you use to buy a license.

The app

DataTally measures network usage with standard macOS statistics, directly on your Mac. Everything it records (speeds, totals, per-app usage, history) stays there and never leaves it. The app contains no analytics or crash reporting.

App blocking

If you block an app, macOS asks you to approve a network filter that ships inside DataTally. The filter runs on your Mac. For each new connection it looks up which app opened it, compares that against the rules you set, and then allows or drops the connection. It does not inspect addresses or contents, keeps no record of your traffic, and sends nothing anywhere. Until you block your first app, the filter is not installed at all.

Updates

DataTally uses an opt-in mechanism for automatically checking for updates. You may also check for updates manually via the app's Check for Updates option, or from this website. A version check fetches a signed update feed from datatally.app, and if you choose to install, downloads the new version.

This website

datatally.app is a static site served by Cloudflare. Cloudflare may process technical request data (such as IP addresses) to serve and secure the site, as described in Cloudflare's privacy policy.

Purchases

Our payment provider handles the payment itself and acts as the merchant of record. To process your order, they collect your name, email address, payment information, and country for tax purposes, under their own privacy policy. We never see your payment details.

From each purchase we receive your email address and the license key issued to it. We keep this record so we can resend your key if you lose it and verify your license if you contact support. We don't use it for marketing, and we don't share it with anyone.

Your rights

You can ask us to show or delete the license record associated with your email address at any time. If we delete it, we can no longer resend your key. Contact us at support@datatally.app.

Changes

If this policy changes, we will post the new version here with a new date.

Contact

Questions? Email support@datatally.app.