Head-to-head · facts checked 15 Sept 2026
QuillBot vs Smodin
Smodin uniquely has 4 features.
From
$19.95/mo (Premium, monthly billing; $8.33/mo billed annually)
Free plan
Yes
From
$10/mo (Starter, billed annually)
Free plan
No
The verdict
QuillBot or Smodin?
Section 01
Pricing, plan by plan
Every plan each vendor publishes, monthly and yearly where both are offered.
QuillBot
Premium
$8.33/mo billed anually · $99.96/yr
Teams
Custom
Smodin
Free
Free
Limited access to core tools with usage caps
Starter
$12.99/mo · $120/yr
All AI tools included: AI Detector, Humanizer, Plagiarism Checker, AI Writer, AI Chat, Career Toolkit
Premium
$19.99/mo · $192/yr
Premium AI models, unlimited writing output, advanced humanization, extended AI chat memory, Chrome Extension, 24/7 priority support, bulk processing
Section 02
Pros and cons
From each tool's full review, written from the same checked facts.
QuillBot
Pros
- Offers ten paraphrasing modes, which is significantly more than most competitors that typically offer three or four.
- Comprehensive feature set includes grammar checker, plagiarism detector, citation generator (APA, MLA, Chicago), AI Detector, Summarizer, and Translator covering 50+ languages.
- The Formal and Academic paraphrasing modes are especially useful for academic users.
- Continuously expanding platform with recent additions like Speech to Text, AI Business Plan Generator, and document editor.
- Accessible free tier makes core paraphrasing functionality available without payment, lowering the barrier to entry.
- Covers a wide range of writing use cases including cover letters, resumes, image generation, and a Co-Writer tool.
Cons
- Pricing is almost entirely invisible on the homepage, making it difficult to evaluate cost before committing.
- The rapid pace of feature additions raises questions about whether newer tools like the Business Plan Generator and Image Editor are fully polished.
- The broad feature surface area means not all tools are likely equally refined or reliable.
- Marketing language like 'used by professionals' can be misleading given the predominantly student user base.
- The sheer number of features makes it harder to evaluate the tool accurately, as quality varies significantly across them.
Smodin
Pros
- Smodin bundles an AI essay writer, plagiarism checker, and AI humanizer into one subscription, eliminating the need for multiple separate tools.
- The platform supports over 100 languages with depth that goes beyond the thin multilingual wrappers common in competing tools.
- Native plagiarism checker is built in rather than relying on a third-party integration, keeping the workflow inside one platform.
- The AI Grader feature allows users to evaluate their own content before submission, which is a genuinely unusual and useful differentiator.
- A Chrome Extension brings the Smodin workspace directly into Google Docs for a more seamless writing experience.
- The feature set spans long-form essays, short-form ad copy, paraphrasing, summarization, translation and auto citations.
Cons
- The AI humanizer feature is described as having a short half-life, likely to become unreliable as AI detection tools continue to improve.
- There is no WordPress integration, which is a meaningful gap for bloggers and content teams who publish directly to CMS platforms.
- No Zapier integration limits workflow automation options for teams that rely on connected tools.
- The feature list may be too long, raising concerns that the product spreads itself thin rather than excelling in any single area.
- API access is restricted to the Premium plan, limiting flexibility for developers or teams on lower tiers.
Side by side
| Company | ||
| Founded | 2017 | 2021 |
| HQ | Chicago, USA | Las Vegas, USA |
| AI model | Proprietary | Proprietary |
| User base | 35M+ | 1 Million+ |
| Platforms | Web, iOS, Android, Chrome, Edge, Safari, macOS, Windows, Microsoft Word | Web, Chrome Extension |
| Languages | 40+ | 100+ |
| Pricing | ||
| Pricing model | Freemium | Freemium |
| Free plan | Yes | No |
| Free trial | — | No — bills immediately, no trial |
| Starting price | $19.95/mo (Premium, monthly billing; $8.33/mo billed annually) | $10/mo (Starter, billed annually) |
| Refund policy | 3-day money-back guarantee (known from training knowledge) | Money-back guarantee if your text doesn't bypass AI detection |
| All plans | Premium — $8.33/mo billed anually Teams — Custom | Free — Free Starter — $12.99/mo Premium — $19.99/mo |
| Positioning | ||
| Best for | Students, academics, professionals, and content creators needing paraphrasing, grammar checking, and AI writing assistance | Students, researchers, bloggers, and content teams needing AI writing, humanization, and plagiarism detection in one platform |
| Differentiator | All-in-one AI writing suite combining paraphrasing, grammar checking, plagiarism detection, AI humanizing, image generation, PDF tools, and citation generation in a single platform used by 35M+ writers across 180+ countries. | All-in-one platform combining AI humanizer, AI detector, plagiarism checker, and AI writer in a single workspace tailored for students and content teams |
| Competitors | Grammarly, Wordtune, Jasper, Copy.ai, Writesonic | QuillBot, GPTZero, Turnitin, Grammarly, Jasper, Copy.ai |
| Features | ||
| AI Copywriting | ✓ | ✓ |
| AI Research | ✓ | ✓ |
| Brand Voice | Basic — AI Humanizer helps text sound natural and like the user | Basic |
| Bulk Generation | — | ✓ |
| Content Editor | ✓ | ✓ |
| Grammar Style | ✓ | ✓ |
| Image Generation | Built-in — AI Image Generator and AI Image Editor included | No |
| Long Form Writing | ✓ | ✓ |
| Paraphrasing | ✓ | ✓ |
| Plagiarism Checker | Built-in | Built-in |
| SEO Optimization | ✕ | ✓ |
| Short Form Writing | ✓ | ✓ |
| Templates | ✓ | ✓ |
| Integrations | ||
| API Access | — | ✓ |
| Chrome Extension | ✓ | ✓ |
| CMS | ✕ | ✕ |
| Google Docs | ✕ | ✓ |
| Key Integrations | Chrome extension, Edge extension, Safari extension, Microsoft Word add-in, iOS app, Android app, macOS app, Windows app | Chrome Extension (Google Docs & browser), API access |
| Wordpress | ✕ | ✕ |
| Zapier | — | ✕ |
Section 03
QuillBot vs Smodin: common questions
Is QuillBot or Smodin cheaper?
QuillBot's cheapest paid plan is $19.95/mo (Premium, monthly billing; $8.33/mo billed annually) and Smodin's is $10/mo (Starter, billed annually). Compare what each plan includes below before going on price alone.
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