Refund policy
Last updated 2 November 2026 · This is a translation; if it differs from the Thai version, the Thai version applies.
No refunds. Premium is a one-time purchase. Once you have paid and received Premium, it cannot be refunded for any reason, except in the cases under "Exceptions" below.
Try before you buy
Because there are no refunds, the app lets you try every Premium feature free for 3 days from the first time you open it (it needs an internet connection that first time). There is nothing to sign up for or pay first. After 3 days the app goes back to the free version by itself. The trial counts per computer, and reinstalling does not restart it. Please use this time to make sure it works with your computer and headphones before buying.
- Your computer needs Windows 10 or 11, 64-bit.
- Install the free version and adjust the EQ to check that your headphones really change.
- See how the Premium features work on the home page, which shows the real app.
Exceptions
We refund only in these cases:
- you were charged twice for the same order,
- you paid but did not receive Premium, and we could not make it work,
- other cases where the law requires a refund.
Tell us through the contact page with proof of payment. Once checked, we refund through the way you paid.
If something is not working
Most problems can be fixed, such as the sound not changing after plugging in new headphones, or wanting to tune it to your headphone model. Contact us and we will help.