New: LeanFPS now measures your FPS and 1% lows, so you can see if a tweak helped.New: FPS and 1% low trackingSee how
LeanFPS
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One price · no subscription

LeanFPS Pro: $19 once

LeanFPS is free to use. LeanFPS Pro unlocks the tweaks that run while you play and the per-genre game profiles, for a single $19 payment. Your first three games get Pro for free so you can judge it by your own FPS numbers.

Free and Pro plans

Free

$0

No account, no time limit.

  • Game detection with icon and genre
  • FPS, 1% low and 0.1% low for every session
  • Compare each session with your usual
  • High performance power plan
  • Keep all CPU cores awake
  • Windows Game Mode
  • Turn off background recording
  • Keep PC and screen awake
  • Restore all, any time
Get LeanFPS

Pro

$19 one-time

Everything in Free, plus 11 tweaks:

Checkout opens with the first signed public release. Until then the 3-game Pro trial is how to try every Pro tweak.

Why LeanFPS Pro is $19 and not a subscription

A game optimizer does its work on your PC. There is no server cost for applying a tweak or measuring FPS, so we do not think a monthly fee is fair. Comparable tools charge between a one-time $57.77 and monthly plans; LeanFPS Pro is $19 once, and the free version stays useful on its own.

What the free version keeps

After the trial ends, game detection, FPS measurement and the core system tweaks keep working. Pro tweaks show a lock instead of disappearing, so you can still read what each one does on the Windows gaming tweaks page. Nothing you turned on is left half-applied: locked tweaks are switched back off and restored.

Questions before buying

Write to contact@leanfps.com. A person answers, usually within two working days. You can also read the terms and privacy policy, or go back to the LeanFPS game optimizer home.

LeanFPS Pro FAQ

Is LeanFPS Pro a subscription?

No. LeanFPS Pro is a single $19 payment. Updates to the app are included; there is no monthly fee and no renewal.

How does the Pro trial work?

The first three games you play with LeanFPS run with every Pro tweak switched on, so you can compare your FPS and 1% lows. After that, the free tweaks keep working and Pro tweaks are shown as locked.

How many PCs can I use LeanFPS Pro on?

Up to three PCs on one account. You will be able to remove an old PC yourself from your account page, without contacting support and without a hardware ID tied to your motherboard.

What is the refund policy?

If LeanFPS Pro does not help on your PC, email us within 14 days of purchase and we refund the full amount. No questions asked.

Can I buy LeanFPS Pro today?

Not yet. Checkout opens together with the first signed public release. Until then every user gets the 3-game Pro trial, and the Unlock Pro button in the app leads to this page.

How will unlocking work?

You press Unlock Pro in the app, your browser opens to sign in and pay, and the app unlocks by itself when payment completes. You will not need to copy or paste a license key.