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SEOZilla vs Writesonic

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. SEOZilla starts at $19.99, Writesonic at $79. Only Writesonic has a free tier. Both ship a public API.

SEOZillaWrites long-form SEO articles and publishes them to your CMS on a schedule, with an optional human editor tier.WritesonicTracks how brands surface inside ChatGPT, Gemini and AI Overviews

Side by side

FactSEOZillaWritesonic
CategorySEO ToolsLong-form & Blog Content
Pricing modelPaidFreemium
Starts at$19.99 month$79 month
Public APIYesYes
PlatformsWeb, APIWeb, API
CompanyAI SEO Software Ltd.Writesonic
Launched—2020
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

SEOZilla

Sits a step above the cheapest auto-blogging tools because it names its founders, publishes a credit table you can do arithmetic on, and sells a human-editor tier for people who will not put unreviewed copy on a client site. The syndication to Reddit and Medium is unusual and also the part most likely to get an account flagged if run carelessly. Read the credit costs before the plan names — $19.99 buys about four articles, not a content programme.

Pros

  • Publishes into seven named CMS platforms plus a REST API for the rest
  • Credit costs are itemised — 15 per medium article, 5 per image, 15 per site analysis
  • A human-editor package tier exists for reviewed output
  • Founders are named publicly, which is rare in this category
  • Syndication to Reddit, LinkedIn, Facebook, Medium and YouTube is built in

Cons

  • The $19.99 entry plan is about four articles a month, not a content strategy
  • Extra seats cost $19.99 each on top of the plan
  • The free trial is only three days
  • The site shows no country of registration behind the Ltd. entity

Writesonic

This is not the AI copywriter the catalogs still describe — it is a GEO tracking suite priced like one, and at $79 to start you are paying enterprise-monitoring money for a three-engine view of your own brand.

Pros

  • Daily prompt and answer tracking is the core of the product, not a bolt-on dashboard
  • Site audits, content generation and publishing sit in the same tool as the monitoring
  • A genuine free tier still exists, with no card required

Cons

  • Starter watches three engines out of ten; the interesting ones are all Enterprise
  • Month-to-month costs about 25% more than the advertised annual rate
  • The old writing-tool positioning is gone, so most third-party reviews describe a different product
  • Prompt and article caps are daily and monthly, so a burst of work stalls until the counter resets

Which one fits

Choose SEOZilla if you need

  • Small sites that want four to ten articles a month on autopilot
  • Agencies that need a human editor pass over machine drafts
  • Teams already on WordPress, Shopify, HubSpot or Webflow

Choose Writesonic if you need

  • Brands that already know they are losing citations inside ChatGPT and want it measured
  • Agencies reporting AI-answer share of voice to clients month over month
  • Teams that want prompt tracking and article production billed on one invoice

More comparisons

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