Refund Policy
Last updated July 9, 2026
We want you to be happy with Diffesq. Because you can try every feature for free before buying (free comparisons and a sample export), we offer refunds as described below.
30-day money-back guarantee
If you're not satisfied, email us within 30 days of your purchase and we'll issue a full refund of your most recent payment — no complicated conditions.
Subscriptions
You can cancel a monthly or annual subscription at any time; cancellation stops future renewals. Beyond the 30-day window, payments already made for the current period are non-refundable, but you keep Pro access until the period ends.
Lifetime plan
The one-time lifetime purchase is covered by the same 30-day money-back guarantee from the date of purchase.
How to request a refund
Email [email protected] from your purchase email address with your license key or Stripe receipt. Refunds are returned to your original payment method via Stripe, typically within 5–10 business days. Refunded licenses are deactivated.