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We haven't run hands-on tests yet, so this page compares prices and plans only.
Compare Surfer SEO alternatives for content optimization — Frase, Scalenut, Semrush Content Toolkit, Clearscope and Writesonic — by features and free trials.
Surfer SEO Discovery is checked at $49 a month. The free quota was not confirmed. Look past it when you need a trial that does not ask for a card, a lower annual line, or a suite that already includes other SEO modules.
Clearscope is in this comparison and has no confirmed price, so the table shows the name with no vendor button and no amount. The other rows also show a price only when it was confirmed on the vendor's site.
| Tool | Best for | Free tier | Starting price | Last checked |
|---|---|---|---|---|
| ToolFrase(opens in a new tab) | Best forSEO content optimization | Free tier7-day free trial, no card | Starting price$49/mo; $39/mo annual | Last checked2026-10-11 |
| ToolScalenut(opens in a new tab) | Best forSEO content optimization | Free tier7-day free trial | Starting price$59/mo (Starter); limited-time $24/mo listed | Last checked2026-10-11 |
| ToolSemrush Content Toolkit(opens in a new tab) | Best forSEO content optimization | Free tierFree trial | Starting price$117.33/mo and up (suite, annual) | Last checked2026-10-11 |
| ToolClearscope | Best forSEO content optimization | Free tierNot confirmed | Starting priceNot confirmed | Last checkedNot checked |
| ToolWritesonic(opens in a new tab) | Best forGeneral AI writing | Free tierFree trial | Starting price$79/mo (Starter, annual) | Last checked2026-10-11 |
Checked at $49 a month or $39 on annual billing, with a 7-day trial and no card. The annual line is the one that undercuts Surfer's $49 Discovery price. No session compares their briefs.
Often used for SEO content optimization
Frase
on Frase's website
Lowest paid plan: $49/mo
Annual billing: $39/mo
Starter is checked at $59 a month. The vendor page also listed a limited-time $24 offer on the check date. The standing price used for sorting is $59, not the promo. Trial length is 7 days.
Often used for SEO content optimization
Scalenut
on Scalenut's website
Lowest paid plan: $59/mo (Starter)
Annual billing: Not confirmed
The checked figure is the Semrush suite from $117.33 a month on annual billing, not a Content Toolkit unit price. That unit price was unconfirmed and stays blank. A free trial is checked. Compare it with Surfer only if you already want the wider suite.
Often used for SEO content optimization
Semrush Content Toolkit
on Semrush Content Toolkit's website
Lowest paid plan: Not confirmed
Annual billing: $117.33/mo and up
Clearscope stays in this comparison because leaving it out would hide a known SEO editor. There is no confirmed price, no free plan, and no vendor button.
Listed as a general drafter, not as an SEO suite. Starter on annual billing is checked at $79 a month. The month-to-month price was not on the vendor's pricing page. A free trial is checked. Use it when the job is drafting, then keep Surfer or Frase if the job is an optimization brief.
Often used for General AI writing
Writesonic
on Writesonic's website
Lowest paid plan: Not confirmed
Annual billing: $79/mo (Starter)
These are different bills. Surfer Discovery is $49 a month for the Surfer product. Semrush's checked line is a suite from $117.33 a month on annual billing, and the Content Toolkit's own price is blank. Neither number says which editor produces a better brief. The head-to-head test does not exist yet.
Staying is coherent if Discovery at $49 a month is the product you meant to buy and you do not need a confirmed free quota. The card repeats that checked price. It does not add a rating.
Often used for SEO content optimization
Surfer SEO
on Surfer SEO's website
Lowest paid plan: $49/mo (Discovery)
Annual billing: Not confirmed
Frase is the checked neighbor with an annual price of $39 against Surfer's $49 Discovery. Scalenut Starter is $59, with a limited-time $24 listing on the check date. Semrush's suite starts at $117.33 a month annual, without a toolkit unit price.
The page can show Discovery at $49 a month and an unconfirmed free quota. It cannot say the product is worth the fee. That would be a hands-on result, and none is published.
The checked Discovery price is $49 a month. Other Surfer tiers are not printed. The free quota was not confirmed.
Surfer Discovery is $49 a month. The Semrush suite figure is from $117.33 a month on annual billing, while the Content Toolkit unit price is omitted. Better would require a test this page does not contain.
We only show a price we could confirm on the vendor's site on the date shown.