Side-by-side pricing, features and compliance for any tools in the directory.
Side-by-side comparison of Grammarly, QuillBot: pricing, capabilities, integrations and compliance — from verified HokAI records.
Grammarly Inc. (formerly Superhuman after 2025 rebrand)
Pick it if: Corporate Communications Manager
Its edge: Ubiquitous 1M+ app integration with enterprise-grade real-time suggestions across every writing surface
The catch: Accuracy issues in context-dependent edge cases, limited offline mode, and AI detection tool unreliability undermine professional use
QuillBot Inc.
Pick it if: Students and academics
Its edge: 10+ paraphrasing modes at 58% lower annual cost than Grammarly, making it the best value for students and content creators
The catch: AI Humanizer effectiveness is inconsistent (40-60% effective at evading detection) and free tier's 125-word limit creates friction for longer documents
| Entry price | Free to start | Free to start |
|---|---|---|
| Free tier | true | true |
| Paid tiers | Free — $0/mo; Pro — $12/mo; Enterprise — $0/mo | Free — $0/mo; Premium Monthly — $19.95/mo; Premium Quarterly — $13.31/mo |
| Hidden costs | Aggressive upsell and upgrade notifications may drive users to paid tier; No transparent tier breakdown; large feature gap between Free and Pro creates frustration; Lack of integration with niche professional tools (Scrivener, Atticus, Open | Plagiarism checking limited to 25,000 words/month on Premium; AI image generation limited to 3 free per day on free tier, 10/day on Premium; Advanced AI humanizer features only available in Premium |
| Budget fit | mid | low |
| Killer feature | Ubiquitous 1M+ app integration with enterprise-grade real-time suggestions across every writing surface | 10+ paraphrasing modes at 58% lower annual cost than Grammarly, making it the best value for students and content creators |
|---|---|---|
| Primary weakness | Accuracy issues in context-dependent edge cases, limited offline mode, and AI detection tool unreliability undermine professional use | AI Humanizer effectiveness is inconsistent (40-60% effective at evading detection) and free tier's 125-word limit creates friction for longer documents |
| Best for | Corporate Communications Manager; Content Marketing Manager; Customer Support/Help Desk Agent | Students and academics; ESL/non-native English speakers; Content creators on limited budgets |
| Worst for | Creative Fiction Writer (tone suggestions feel formulaic); Academic Researcher (less effective for specialized terminology and citation formats); Software Developer (no code-focused corrections) | Technical writers (struggles with domain-specific terminology); High-volume content agencies (hit plagiarism word limits); Users needing 100% undetectable AI rewriting |
| Minimum skill level | beginner | beginner |
| Defensibility | 8 | 7 |
| Target audience | Professionals & Business Writers, Students & Academics, Content Creators & Marketers, Technical Writers, Enterprise Teams, Non-Native English Speakers, Legal & Finance Teams | Students and academics, Content creators and bloggers, Business professionals, Non-native English speakers, Freelance writers, Educational institutions |
| Key features | Real-Time Grammar & Spelling Checks; Tone Detection & Adjustment; Generative AI Assistance | Advanced Paraphraser; Full Grammar Checker; Plagiarism Detection |
|---|---|---|
| Capabilities | — | Vision |
| Strengths | Wide integration reach across the apps people already write in, including Gmail, Word, Slack, and Docs, removes the need to switch tools mid-task; Real-time feedback catches errors instantly and improves writing quality with minimal frictio | Paraphrasing quality and the range of rewriting styles are the main reason reviewers pick QuillBot over grammar-only tools.; Annual billing works out cheaper per month than Grammarly's closest comparable plan, per HokAI's own pricing compar |
| Watch out for | No offline mode: every feature needs an internet connection to work; Suggestions are not always contextually accurate; the AI can misfire on nuance-dependent or creative writing; The feature gap between Free and Pro is large, and upgrade pr | The free tier's per-rewrite word cap makes it impractical for pasting in a long document at once.; The AI Humanizer is only 40-60% effective at helping text evade AI detectors in real-world testing.; The grammar checker is less advanced tha |
| Context window | — | 125 |
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