Koala vs SEOZilla (2026): which should you pick?
As of Oct 23, 2026, Koala and SEOZilla share a 2.4 GPA, neither has a free plan, and SEOZilla starts cheaper, at $19.99 a month against $25 a month.
Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA
Koala grades higher on the free plan. SEOZilla grades higher on value for money. They get the same grade on features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Koala
AI article writer with SERP analysis, internal links and an SEO agent
SEOZilla
AI agents that plan, write and auto-publish SEO and GEO blog articles
Which one is for you
Pick Koala if
- Fits if you run a blog or affiliate site and publish articles in volume
- Works for WordPress and Shopify sites that want drafts sent straight to the site
Look elsewhere if
- Not for you if you want a free plan, as the free allowance is one-time
- Watch out: word allowances assume one model, and the others count double or triple
- Tight if you lean on the SEO agent, at 25 messages a month on Starter and 50 on Professional
- Pricey if you write for several brands, as each extra one is $29 a month
- Watch out: refunds come only within 15 days, and only if under 15,000 words and 100 credits were used
Pick SEOZilla if
- Fits if you want a blog that fills itself on a schedule
- Works for teams that need a human editor on AI posts and can pay $199.99 a month or more for it
Look elsewhere if
- Tight if you're on Basic: about 4 articles a month, WordPress only, and no API until Pro at $99.99
- Not for you if you want to try it without a card, as the 3-day trial needs one
- Pricey if you want a human editor, as those plans run $199.99 to $2,999.99 a month
- Watch out: the homepage puts human-edited plans from $99.99, the pricing page from $199.99
- Watch out: cancelling stops billing at the end of the cycle, with no partial refunds
How we grade them
| 2.4GPAKoalaFair | 2.4GPASEOZillaFair | |
|---|---|---|
| Value for money | CStarter is $25 a month for 45,000 words and 500 credits, between this category's cheaper quarter ($20) and its middle ($45). The SEO-scored editor, the Search Console dashboard and Deep Research start at Professional, $49. | BBasic is $19.99 a month for 100 credits, just inside this category's cheapest quarter ($20). That's only about 4 articles with images, though. 10 articles means Starter at $49.99, and API access Pro at $99.99. |
| Free plan and trial | CNo ongoing free plan. A new account gets a one-time 5,000 words and 25 credits with no card, which is enough for a look and not much more. | DNo free plan. The 3-day trial of the paid plans needs a card, with a reminder emailed the day before billing. Unused article credits can be refunded within 7 days. |
| Features | BAn article writer working from the ranking pages, an SEO agent that plans from Search Console, automatic internal links, publishing to four CMSs, Amazon affiliate articles, an API and an MCP server. The whole job, though the scored editor starts at Professional. | BSite and competitor analysis into an article queue, researched long-form posts with cited sources, TL;DRs and FAQs, scheduled publishing, paragraph rewrites in an editor, syndication and Blog2Video. Nothing in the listing shows a gap in the core job. |
| Ease of use | CNo rating on record. There's Brand DNA to set up, Search Console and a CMS to connect, and words and credits counted separately. | CNo rating on record. It crawls your site and competitors first, then you approve or reject a queue of ideas and connect a CMS, or switch to full autopilot. |
| Platforms and integrations | BWeb, publishing to WordPress, Shopify, Webflow and Ghost, with Zapier, Make, Search Console, Analytics, an API and an MCP server. No desktop or phone app. | BWeb only, with no desktop or phone app. It publishes to WordPress, Webflow, Ghost and Shopify, lists Wix, HubSpot and Elementor, and has an API from Pro. |
| Best for | AI blog articles published straight to your CMS | auto-published long articles laid out for AI answers |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Koala and SEOZilla. How we grade
Price against what you get
Koala starts at $25 a month and scores 2.7 out of 4 on features, ease of use and platforms. SEOZilla starts at $19.99 a month and scores 2.7.
They score the same, and SEOZilla starts $5.01 a month lower. Of the other SEO content tools on the chart, 1 scores higher than Koala for less, and 1 scores higher than SEOZilla for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Koala also covers content optimization.
At a glance
| Koala | SEOZilla | |
|---|---|---|
| Pricing | Free trial | Free trial |
| Starts at | $25 per month, billed monthly | $19.99 per month for 100 credits |
| Free plan | None | None |
| Free trial | Free account with a one-time 5,000 words and 25 credits, no credit card required | 3-day free trial of paid plans; a credit card is required and a reminder is emailed the day before billing |
| Web | ||
| Made by | F5 Media, LLC | AI SEO Software Ltd |
| Price read from | koala.sh | seozilla.ai |
| Checked | Oct 23, 2026 | Oct 23, 2026 |
Worth knowing
Koala
- There is no ongoing free plan; new accounts get a one-time 5,000 words and 25 credits.
- Word allowances assume the GPT-6 Luna model; GPT-6.1 Sol and Claude Sonnet 5 count double and Claude Opus 5.5 triple.
- The SEO agent is capped at 25 messages a month on Starter and 50 on Professional; Boost removes the cap.
- Extra brands cost $29 a month each; refunds are given within 15 days only if under 15,000 words and 100 credits were used.
SEOZilla
- Articles cost 10 to 25 credits by length and images 5 each, so Basic's 100 credits cover about four articles with a featured image.
- Basic publishes only to WordPress; Webflow, Ghost and Shopify start at Starter, and API access at Pro.
- Human-edited plans cost $199.99 to $2,999.99 a month for 4 to 120 articles; the homepage puts them from $99.99.
- Cancelling stops billing at the end of the cycle with no partial refunds; unused article credits can be refunded within 7 days of purchase.
Key features
Koala
- KoalaWriter
- Drafts articles that cover the entities and terms shared by the ranking pages, with Deep Research sources from Professional, AI images and a bulk mode.
- Brand DNA and SEO agent
- Reads your website or Google Maps listing once, then plans topics from your Search Console and Analytics with built-in keyword, backlink and SERP data.
- Automatic internal linking
- KoalaWriter indexes your site and places internal links in each article; KoalaLinks adds links and schema markup across existing pages from Professional.
- One-click publishing
- Publishes drafts or finished posts to WordPress, Shopify, Webflow and Ghost, or anywhere else through webhooks for Zapier and Make.
- Amazon affiliate articles
- Writes product roundups and single-product reviews from live Amazon data, including product details and customer reviews.
- API and MCP server
- Every paid plan can write by API or connect an AI assistant to 62 SEO tools; research calls cost 0.1 to 4 credits each.
SEOZilla
- Site analysis and content plan
- Crawls your site, studies competitors and pulls keyword data, then builds a queue of article ideas you approve, edit or reject.
- Researched long-form articles
- Writes articles of up to about 4,000 words with live web research, cited sources, images, tables, YouTube embeds and internal links.
- Structure for AI answers
- Each article gets a TL;DR summary, FAQs and short self-contained sections, which SEOZilla says suit citation by ChatGPT, Claude, Perplexity and Gemini.
- Scheduled auto-publishing
- Publishes to WordPress, Webflow, Ghost, Shopify and other CMSs on your schedule, or runs on full autopilot without approvals.
- Editor and rewrites
- A visual editor lets you ask the AI to rewrite any paragraph for 2 credits; regenerating an article within 30 days costs 10.
- Syndication and Blog2Video
- Articles can be syndicated to sites such as Reddit, LinkedIn and Medium, capped at 10 links, and turned into videos at 5 credits a minute.
Plans
Koala
Starter$25
per month for 45,000 words, billed monthly
500 credits a month, 1 brand, 25 agent messages, bulk writing, publishing integrations, the API and MCP server.
Professional$49
per month for 100,000 words, billed monthly
1,000 credits, 50 agent messages, Search Console and Analytics dashboard, SEO-scored editor, Deep Research and KoalaLinks for 50 sites.
Boost$99
per month for 250,000 words, billed monthly
2,500 credits a month, the full Brand DNA experience with no agent message cap, and content calendar autopilot.
Growth$179
per month for 500,000 words, billed monthly
Everything in Boost with 5,000 credits a month and 3 brands.
Elite$350
per month for 1,000,000 words, billed monthly
Everything in Boost with 10,000 credits a month and 7 brands.
Advanced$500
per month for 1,500,000 words, billed monthly
Everything in Boost with 12,500 credits a month and 12 brands. Scale plans go on up to $2,000 a month.
SEOZilla
Basic$19.99
per month for 100 credits
About 4 articles and 4 AI images a month, unlimited projects and publishing to WordPress only.
Starter$49.99
per month for 250 credits
About 10 articles and 10 images a month, with publishing to WordPress, Webflow, Ghost and Shopify.
Pro$99.99
per month for 750 credits
About 30 articles and 40 images a month, 1 extra seat and API access. The top card shows it as $99 against a crossed-out $200.
Ultimate$189.99
per month for 1,800 credits
About 70 articles and 100 images a month, 2 extra seats, API access and priority email support.
Ultimate+$299.99
per month for 3,050 credits
About 120 articles and 200 images a month, 3 extra seats, API access and priority email support.
Ways to pay less
Koala
- Annual discount
Save 20% with annual billing
Koala's pricing page offers 20% off every plan with annual billing, with the whole year's words and credits given up front.
SEOZilla
No public discounts listed.
Common questions
Which is cheaper, Koala or SEOZilla?
As of Oct 23, 2026, SEOZilla is cheaper to start with: $19.99 a month, against $25 a month for Koala. Koala starts at $25 per month, billed monthly, and SEOZilla starts at $19.99 per month for 100 credits.
Which has a free plan, Koala or SEOZilla?
As of Oct 23, 2026, neither Koala nor SEOZilla has a free plan. Both have a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.