AI Tool Comparison
A side-by-side breakdown to help you pick the right tool for your workflow.
Review Score assesses product quality; Fit Score is specific to a use case. Limited reviews do not establish overall product quality. How reviews work.
Research a topic against top-ranking pages, generate a brief, draft the article, and audit your site for AI-search gaps, all in one workflow. Relaunched January 2026 as a unified content + AI-visibility platform.
Catch grammar and clarity issues as you write, then let built-in AI agents draft, rewrite, and complete tasks across your apps. Grammarly's parent company rebranded to Superhuman in October 2025.
Catalog updated: August 2026
Frase and Grammarly both compete in Writing, overlapping most directly on writing. Frase runs on a paid-only plan while Grammarly runs on a freemium model, which alone may settle it if budget or a free tier is a hard requirement.
Choose Frase if…
Best for content teams who want a research brief built from what's already ranking, before writing begins, and its edge is pulls the top 20 search results for a keyword and turns their structure into an optimized content brief automatically. Excellent for the research phase specifically, its own AI writer is a secondary feature at best. Lean toward Grammarly instead if built-in AI agents now draft and rewrite across your apps, not just proofread matters more for your use case.
Choose Grammarly if…
Best for catching grammar and clarity issues in real time as you write anywhere online, and its edge is built-in AI agents now draft and rewrite across your apps, not just proofread. The baseline writing check most people should already have running. Lean toward Frase instead if pulls the top 20 search results for a keyword and turns their structure into an optimized content brief automatically matters more for your use case.
| Attribute | Frase | Grammarly |
|---|---|---|
| Category | Writing | Writing |
| Pricing | paid | freemium |
| Pricing Detail | $49/mo Starter / $129/mo Professional / $299/mo Scale | Free / $12/mo Pro (annual) / Enterprise custom |
| TWF Review Score | Not yet reviewed | Limited review: 3/5Not a product-wide score |