What it costs to run

The Mac app runs on your Mac and costs us nothing per user. The iPhone filter needs servers. Here is what they cost, as of November 2026.

Every month

• The server: €12.49. One Hetzner machine in Germany (4 cores, 8 GB) runs the lookup server, the token server and the gateway Apple's relay talks to.
• Downloads: €0. The lists your iPhone downloads come from Cloudflare R2, which doesn't charge for traffic at our size.

Every year

• The Apple Developer Program: $99.
• The domain, wdns.app: $14.20.

How far that goes

The one server answers about 30 lookups a second. Your iPhone only asks when a site might be on a list, so that is enough for roughly 17,000 people. When it runs out, the next server costs about the same again.

Where your money goes

Apple keeps 15% of a subscription. The servers cost about 15 cents per person per year with a thousand people using wDNS, and less as more join. The rest pays for the work on wDNS.