Harbor vs SEO Writing AI
Harbor
harborseo.ai
SEO Writing AI
seowriting.aiSide by side
| Figure | Harbor | SEO Writing AI |
|---|---|---|
| Price from | €24/mo | $19/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 8 | 5 |
| Spec score · Programmatic SEO Software | 8.7 (#3) | 8.1 (#7) |
| Spec score · AI Writing Tools | 8.8 (#34) | 8.6 (#48) |
| Brand voice controls | Yes | Yes |
| Free plan | Yes | Yes |
| Languages | Harbor says its multilingual module publishes SEO-optimised content in 52 languages with localisation and hreflang. | The product says it can create articles in more than 50 languages. |
| Language support | multilingual | multilingual |
| Long-form writing | Yes | Yes |
| Product | Harbor is an AI-powered SEO content platform that researches content opportunities, generates articles, publishes them, and tracks rankings. | SEO Writing describes itself as an AI writing tool for one-click SEO articles, blog posts, and affiliate content. |
| SEO features | Yes | Yes |
| Support | The about page says a real person usually responds to support requests, often co-founder Hamish, and the Powerhouse plan includes priority support. | The site directs users with questions or service issues to [email protected]. |
Plans
Harbor
- FreeFree
- Solo€24 a month
- Growth€39 a month
- Powerhouse€82 a month
- FreeFree
- Solo€24 a month
- Growth€39 a month
- Powerhouse€82 a month
SEO Writing AI
- FreeFree
- Starter$19 a month
- Professional$79 a month
- Professional Plus 1$159 a month
- Professional Plus 2$307 a month
In their own words
SEO Writing AI
SEO Writing AI is a web-based tool for creating SEO-focused articles, blog posts, and affiliate content. It offers formats such as product roundups and reviews, how-to guides, news articles, lists, and landing pages, and says it analyzes search results in real time to shape content for search and AI answers. It supports more than 50 languages and includes brand voice controls. The maker says the tool uses models from OpenAI, Anthropic, Google, and DeepSeek, alongside proprietary AI technology for specific tasks. Most models use one credit per article; advanced OpenAI and Anthropic models use four, while the most powerful Anthropic model uses ten. WordPress connections support publishing or scheduling, including batches of up to 100 articles. The pricing page also lists a Shopify app and a WordPress MCP Server for connecting Claude to WordPress. For affiliate work, its Amazon product-list feature uses product URLs and ASINs to generate product details, pros, cons, and descriptions. The free plan provides three articles and a 25,000-word limit without requiring payment details. Paid plans start at $19 a month.