# Scribbr vs SpellFast AI

Scribbr records 7,530,803 monthly visits with +14.6% month-over-month growth and Freemium pricing. SpellFast AI records 0 monthly visits with — growth and Freemium pricing.

| Metric | [Scribbr](https://openaitools.app/tool/scribbr) | [SpellFast AI](https://openaitools.app/tool/spellfast-ai) |
| :--- | :--- | :--- |
| Website URL | https://www.scribbr.com | https://chromewebstore.google.com/detail/spellfast-ai/ckbnakcgighaimlmkfninplpcjaccgeh |
| Categories | AI Writing, AI Proofreading, AI Plagiarism Checker, AI Writing Assistants | AI Grammar Checker, AI Spell Check, AI Writing Assistants |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 7,530,803 | 0 |
| MoM Growth Rate | +14.6% | — |
| Primary Market | United States | Global |
| Direct Visits | 2,472,819 | 0 |
| Review Score | 4.4 | 3.9 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Browser Extension |

## Scribbr

Scribbr was built around a simple promise: help students submit work they feel confident about. The core of the service is human proofreading and editing, delivered by a hand-picked pool of academic editors who go through an in-house training programme before they are allowed to take orders. Documents are returned with tracked changes, in-text comments and a short personal letter explaining the reasoning behind the main edits.

Alongside the human service, Scribbr offers a growing library of AI writing tools. The Academic Check bundles together grammar and language review, citation checking, plagiarism scanning and AI-content detection into a single upload, which is convenient when you want one pass over an entire paper rather than juggling separate tools. Individual utilities such as the citation generator for APA, MLA, Chicago, AMA, IEEE and ACS, the paraphrasing tool and the text summarizer can be used on their own without paying for an edit.

The platform also maintains a large free knowledge base of academic writing guides that has become one of the more popular ways students discover the brand. Pricing depends heavily on document length, chosen turnaround time and add-on checks, so the practical way to get a number is to upload a file and select services in the order flow.

**Pricing & Plans:** Freemium model. Free tools include the citation generator, grammar checker and summarizer. Human proofreading and editing, the plagiarism checker, AI detector, AI proofreader and Academic Check are paid per document, with the final price depending on page count, delivery speed and any add-on checks such as structure or clarity review.

- **Human proofreading and editing:** A vetted academic editor reviews your paper within hours and returns tracked changes, comments and an explanation letter.
- **Plagiarism checker:** Scans your document against a large web and publication database to surface potentially unoriginal passages before submission.
- **AI detector and AI humanizer:** Flags text likely generated by large language models and offers a rewriting mode aimed at making AI-assisted drafts sound more natural.
- **Citation generator:** Creates and verifies references in APA, MLA, Chicago, AMA, IEEE and ACS styles from a URL, DOI or title search.
- **Academic Check bundle:** Runs grammar, citations, clarity, plagiarism and AI-detection checks in a single upload of the whole document.

**Strengths:** Combines human editors with AI tools rather than relying on one alone; Strong editorial vetting process and a large pool of academic specialists; Free citation generator and knowledge base are genuinely useful on their own; Transparent turnaround options starting from a few hours

**Limitations:** Paid services are priced per document, which adds up for long theses; AI detector verdicts can still be disputed by institutions; Some premium checks require you to buy them alongside an editing order

[Profile (Markdown)](https://openaitools.app/tool/scribbr.md)

## SpellFast AI

SpellFast AI takes a deliberately different approach from most writing assistants: rather than highlighting every possible issue with underlines and tooltips as you type, it stays silent until you ask for help. Press CTRL + SHIFT + I and the extension rewrites the text you are working on, in place, wherever you happen to be typing.

That shortcut-first design works across virtually any website, from webmail clients and Google Docs to social media comment boxes and support ticketing systems. A hands-free mode adds voice commands so you can trigger corrections without touching the keyboard, and the extension advertises multilingual support for polishing text that is not in English.

The extension is privacy-focused in its positioning: the developer states that your writing is not collected or stored. It offers in-app purchases for paid capability, and a support contact is provided by the publisher. Because it is a small independent tool, feature depth is intentionally narrow compared with full writing platforms.

**Pricing & Plans:** Free to install with optional in-app purchases for paid features. The listing does not publish exact paid tier prices.

- **One-shortcut corrections:** Press CTRL + SHIFT + I and your current text is instantly checked and rewritten instead of being marked up with persistent underlines.
- **Hands-free voice mode:** Trigger corrections with voice commands for a completely keyboard-free writing workflow.
- **Works on any website:** Runs inside text fields on webmail, documents, social media and support tools without per-site setup.
- **Multilingual support:** Polish grammar and phrasing in languages beyond English.
- **Distraction-free and privacy-minded:** No constant highlights or pop-ups, and the developer states it does not collect or store your writing.

**Strengths:** Silent by default, so it never interrupts your flow with underlines; Single shortcut makes correction fast and predictable; Runs on virtually any website with text input; Advertises multilingual correction and a voice-triggered mode

**Limitations:** Small user base and few reviews, so long-term reliability is less proven; Feature set is narrow compared with full-featured writing suites; Paid pricing is not published on the store listing

[Profile (Markdown)](https://openaitools.app/tool/spellfast-ai.md)

## Frequently Asked Questions

### How do Scribbr and SpellFast AI compare in monthly traffic?

Scribbr has 7,530,803 monthly visits, while SpellFast AI has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Scribbr has a month-over-month growth rate of +14.6%; SpellFast AI has —.

### How does pricing compare?

Scribbr: Freemium. Freemium model. Free tools include the citation generator, grammar checker and summarizer. Human proofreading and editing, the plagiarism checker, AI detector, AI proofreader and Academic Check are paid per document, with the final price depending on page count, delivery speed and any add-on checks such as structure or clarity review. SpellFast AI: Freemium. Free to install with optional in-app purchases for paid features. The listing does not publish exact paid tier prices.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 2 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Paraphrase, proofread and summarize text with an AI writing workspace | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 3 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | AI content detection and a full writing toolkit in one place | [.md](https://openaitools.app/tool/zerogpt.md) |
| 4 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | Focuses specifically on AI content detection and writing verification for educators, but lacks academic editing and proofreading workflows. | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 5 | [LanguageTool](https://openaitools.app/tool/languagetool) | 5,707,795 | -4.2% | Freemium | AI grammar, spelling and style checker for 30+ languages | [.md](https://openaitools.app/tool/languagetool.md) |
| 6 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | Provides enterprise-grade AI detection and plagiarism checking, but does not offer human academic proofreading or citation generation. | [.md](https://openaitools.app/tool/originality.md) |
| 7 | [Jenni](https://openaitools.app/tool/jenni) | 1,498,133 | +5.2% | Freemium | Offers specialized academic writing assistance and AI citation generation, but lacks Scribbr's human proofreading and formal editing services. | [.md](https://openaitools.app/tool/jenni.md) |
| 8 | [Wordtune](https://openaitools.app/tool/wordtune) | 368,771 | -5.8% | Freemium, Free Trial | Express yourself with confidence — rewrite, proofread and summarize in one click | [.md](https://openaitools.app/tool/wordtune.md) |
| 9 | [Aithor](https://openaitools.app/tool/aithor) | 345,936 | +11.8% | Freemium | Assists with essay drafting and scholarly source generation, but lacks Scribbr's human-in-the-loop proofreading and dedicated citation tools. | [.md](https://openaitools.app/tool/aithor.md) |
| 10 | [Quetext](https://openaitools.app/tool/quetext-com) | 280,056 | +14.1% | Freemium | Check plagiarism, detect AI text and polish your writing in one place | [.md](https://openaitools.app/tool/quetext-com.md) |

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Source: https://openaitools.app/compare/scribbr-vs-spellfast-ai

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