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KnoCommerce vs OptinMonster

Updated June 2026 · A structured head-to-head comparison.

Post-purchase surveys and attribution.

Lead capture & on-site conversion pop-ups.

The verdict

Both KnoCommerce and OptinMonster are credible customer feedback tools, and the right pick comes down to your priorities.

Choose KnoCommerce if you want a lower starting price (free – $49/mo), a free plan to start on and a higher overall rating (4.8/5). Post-purchase surveys and attribution.

OptinMonster — Lead capture & on-site conversion pop-ups.

KnoCommerce vs OptinMonster: side by side

DimensionKnoCommerceOptinMonster
Starting priceFree – $49/moWinnerFrom $16/mo
Free planYesWinnerNo
Pricing modelFreemiumSubscription
Best forSmb, Ecommerce BrandsMarketers, Smb
PlatformsWeb, ApiWeb
Rating4.8/5Winner4.3/5

KnoCommerce key facts

Vendor
Kno
Pricing
Freemium — Free – $49/mo
Free tier
Yes
Platforms
Web, Api
Best for
Smb, Ecommerce Brands
Editor rating
4.8 / 5
Founded
2020
Headquarters
Austin, Texas, USA

OptinMonster key facts

Vendor
OptinMonster
Pricing
Subscription — From $16/mo
Free tier
No
Platforms
Web
Best for
Marketers, Smb
Editor rating
4.3 / 5
Founded
2013
Headquarters
West Palm Beach, USA

Frequently asked questions

Is KnoCommerce better than OptinMonster?

Neither is universally better — KnoCommerce edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.

Is KnoCommerce or OptinMonster cheaper?

KnoCommerce is the more affordable of the two to get started, at free – $49/mo. KnoCommerce starts at free – $49/mo; OptinMonster starts at from $16/mo.

Can KnoCommerce replace OptinMonster?

Yes for most teams — both are customer feedback tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.