Volume Booster 1000 MAX

Pro — one payment, not a subscription.

Everything the extension already did stays free. Pro adds the tools on top, for a single price, forever.

$4.99 once · no renewal · works on up to 5 browsers

What is free, and what Pro adds

Free forever

  • Volume up to 1000%
  • Per-site memory, or one level everywhere
  • Normal and Bass profiles
  • The limiter that stops the crackle
  • Turbo engine, for sites the normal one cannot reach
  • Keyboard shortcuts and the on-screen readout
  • Toolbar level badge
  • Skip list for sites to leave alone
  • Light and dark, 11 languages

Pro adds

  • 10-band equaliser and the six VIP profiles
  • Pitch — make a voice deeper or lighter
  • Voice clarity — lift quiet dialogue over loud effects
  • Loudness levelling — stop adverts jumping in volume
  • Tab mixer — every noisy tab in one panel
  • Stereo width, balance and mono
  • Sleep timer
Hear it before you decide. Every Pro tool is unlocked for five minutes a day, free, with no account and no card. Audio is the kind of thing you can judge in ten seconds — if you cannot hear the difference, do not buy it.

How to buy right now

Card checkout is not open yet — a payment account is still being set up. Until it is, Pro is sold directly by bank transfer or cryptocurrency, and the licence you get is exactly the same one.

  1. Send the form below. Tell us your email and how you would like to pay. A normal bank transfer works today in the UK, across Europe and in the United States; cryptocurrency works anywhere.
  2. We reply, usually within a few hours, with the payment details.
  3. You pay, we send your licence code.
  4. Paste it into the extension. Settings → Pro licence → Activate. Everything unlocks immediately, on up to five browsers.

If you would rather wait for card payment, pick that option above and we will write to you the day it opens. Nothing is charged in the meantime and the free version keeps working exactly as it does now.

Fair terms

Nothing that was free becomes paid. Everything the extension shipped with stays free, permanently. Pro is only ever new capability added on top.
One payment means one payment. No renewal, no expiry, no "your licence has lapsed" a year later. If a future version adds more Pro tools, your licence covers them.
If it does not work, you get your money back. Write to us and say so. No form, no argument.

How activation works

Open the extension's settings, paste the code, press Activate. One code works on up to five browsers. If our licence server is ever unreachable, the extension keeps Pro working rather than locking you out — it is built to fail in your favour.