← KoruPDF

Refund Policy

Last updated: August 26, 2026

Summary

KoruPDF’s core features are free forever — no payment, no refund needed.

For KoruPDF Pro subscriptions (monthly or annual), we offer a 14-day money-back guarantee.

14-Day Money-Back Guarantee

If you are not satisfied with KoruPDF Pro, you can request a full refund within 14 days of your purchase date. This applies to:

  • Pro Monthly subscriptions (including the 30-day $1 trial)
  • Pro Annual subscriptions

How to Request a Refund

  1. Email hello@byzanx.com with:
    • Your license key (found in KoruPDF Settings → Activate Pro)
    • The email address used at checkout (your Waffo checkout email)
    • “Refund request” in the subject line
  2. We will process your refund within 5 business days
  3. The refund will be issued to your original payment method via Waffo

What Happens After Refund

  • Your Pro license key will be immediately deactivated
  • Pro features (unlimited AI annotations, unlimited AI analysis, multi-device sync) will stop working
  • Core reading features (PDF reading, dictionary lookup, TTS, vocabulary saving, highlights, reading mask) remain fully available — they are permanently free
  • If you enabled multi-device sync, your synced vocabulary data will be retained on our server for 30 days, then deleted. To request immediate deletion, mention it in your refund email.

After the 14-Day Window

Refund requests made after 14 days from the purchase date are evaluated case-by-case. We are not obligated to issue refunds after the 14-day window, but we will consider:

  • Billing errors or duplicate charges
  • Proven inability to use the Service due to unresolved technical issues on our side
  • Other extenuating circumstances

For recurring subscriptions: cancelling your subscription stops future renewals but does not refund the current billing period. To cancel, use the Waffo customer portal (link in KoruPDF Settings → Manage subscription; Magic-Link login with your purchase email).

Invite Trial Refunds

Invite trials (14 days of Pro free, earned through referrals) have no monetary value and are not refundable. If your invite trial is cut short due to a Service outage or bug, email us and we may extend the trial at our discretion.

Chargebacks

We prefer to resolve issues directly. If you believe a charge is incorrect, please email hello@byzanx.com before initiating a chargeback with your bank or card issuer. Unauthorized chargebacks may result in license key deactivation.

Questions

If you have questions about this refund policy, please email hello@byzanx.com.