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Free tiers, audited. Receipts included.

Free vs paid noise cancellation: where the $0 stops making sense

This is a free-tier site that will now argue you into paying — in exactly three situations, and out of it in the rest. The test is always the same: are you repeatedly hitting a wall that has a price on it?

Where the $0 stops

$0

billed annually
$8/user/month
billed monthly
$16/user/month
three of the six doors
none exists
Three of the six tools in the table below have none exists in the paid-door column. The arc is their share.
by the ZeroHum audit deskpublished July 31, 2026the doctrine page
The no-trials pledgeEvery mint-chip tool here has a free tier you can live in — not a trial wearing a free costume. Time-boxed trials get named as trials (Krisp’s seven days is the one on our shelf), samples as samples, and anything that quietly expires gets the orange chip.

The vocabulary, so nobody gets fooled

A permanent tier renews forever (Enhance's daily hour; Krisp's used to qualify until Krisp retired it) — you can build a routine on it. A sample happens once (Cleanvoice's 30 minutes) — you can test with it, not live on it. A trial is a countdown (Krisp's 7 days) — useful exactly once, before a buying decision. Sites that blur these three shapes are selling you something; so are we, but with the shapes labelled.

The three situations where paying wins

1. The free tools don’t reach your calls. No RTX card, no Windows, or calls spread across apps that each need their own toggle: that is the gap Krisp fills, and it no longer has a free plan to fill it with. Run the 7-day trial on a real week; if it earns its keep, Core is $8/user/month billed annually. (Insist on annual: monthly is $16/user/month, double the rate.)

2. Volume cleanup is your job. Enhance free's hour a day and 30-minute files stop scaling at podcast-network volumes; Cleanvoice's hours ($11/mo for 10 h, rolling over) or Enhance Premium (Premium $9.99/mo or $99.99/yr) price that honestly.

3. You need sameness across machines. Free tiers bind to one device or one platform; if your work identity spans a Mac laptop and a Windows desktop and must sound identical, that consistency is specifically what a paid seat buys.

The situations where paying never wins

The whole shelf's small print, one table

ToolFree shapePaid door
Krisp7-day trial only$8/user/month billed annually
Adobe Enhance1 h/day, foreverPremium $9.99/mo or $99.99/yr
NVIDIA Broadcastunlimited (RTX-gated)none exists
SteelSeries Sonarunlimited (Windows)none exists
Cleanvoice30-min sample, oncefrom $0.90/hour
Audacityeverything, forevernone exists

The price of the door

Dollars a month to walk through the paid door, $0 to $16 — from the table above.

Krisp, billed monthly

$16/user/month

Adobe Enhance Premium

$9.99/mo

Krisp, billed annually

$8/user/month

Cleanvoice

from $0.90/hour

NVIDIA Broadcast

none exists

SteelSeries Sonar

none exists

Audacity

none exists

Krisp appears twice because the monthly rate is double the annual one. A nub means there is no door: three of the six tools have nothing to sell you.

Fair questions

When is paying for noise cancellation actually worth it?
When a wall you keep hitting has a price, the math is simple: if the free tools can't clean every call app you use, Krisp at $8/month billed annually costs less than the calls it rescues — and its 7-day trial tells you before you pay. Pay for the specific wall you keep hitting — never for features you haven't missed.
What's a trial in disguise?
Anything labelled free that's structurally a countdown: a one-time sample (Cleanvoice's 30 minutes), a 7-day unlock, a “free” export behind a watermark. We flag them orange — they can still be useful, but only if you know their shape going in.
Is the free stuff here worse quality than paid?
Mostly no — that's the category's best-kept secret. Krisp's 7-day trial runs the full paid engine, so the week is a fair test; Broadcast has no paid tier to be worse than. The main genuine quality gap: Enhance free's fixed strength vs Premium's slider.

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