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.