Support

We're here to help.

Contact us

For billing questions, license issues, refunds, or anything else, email us at [email protected]. We aim to respond within 2 business days.

To help us resolve your issue quickly, include your license key (DIF-XXXX-XXXX-XXXX-XXXX) or Stripe receipt and a description of what you're seeing.

Common topics

  • Recovering a lost license key — email us from your purchase address.
  • Moving your license to a new device (activate on any number of devices).
  • Refunds — see our Refund Policy.
  • How the app works — see Help.

Diffesq is operated by LoudFoam LLC.