Shortlist by what you need
Start here if you know why you are leaving Charley AI.
Want the closest match?
EssayGeniusMost similar to Charley AI in what it does, its category and its price.
Visit (opens EssayGenius in a new tab)Need a free plan?
SmodinHas a free plan, rated 4.2 out of 5.
Visit (opens Smodin in a new tab)Want the lowest price?
Conch AIFrom $9.99/mo, the lowest starting price here.
Visit (opens Conch AI in a new tab)Want the best rated?
WriterBuddyRated 3.7 out of 5 in our review, against 2.7 for Charley AI.
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At a glance
Green means better than Charley AI, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Charley AIBaseline | 2.7 | Free | Yes | AI writing companion for students - essay generation, citation finding, lecture summarization and style matching, used by 550,000+ students. Also pairs a plagiarism detector with plagiarism removal. | |
| EssayGenius | 2.8+0.1 | Free | Yes | Type your essay topic, press enter, get a complete essay back in under a minute - idea generation, structuring, citation styles, and rewriting from your own past writing samples. | vs Charley AI |
| WriterBuddy | 3.7+1.0 | Free | Yes | 40+ academic writing tools in one place - co-writer, plagiarism checker, citation generator (MLA/APA/Chicago), ChatPDF - across 25+ languages. | vs Charley AI |
| Smodin | 4.2+1.5 | $10/mo | Yes | A grab-bag of writing utilities rather than one flagship feature | vs Charley AI |
 GPTinf | 3.5+0.8 | $19/mo | No | A paraphrasing engine that rewrites AI-generated text to read as human-written. | vs Charley AI |
| Conch AI | 3.8+1.1 | $9.99/mo | Yes | Conch AI rewrites, summarizes, and cites text for students and researchers, and rephrases AI-generated writing to read as human-authored. | vs Charley AI |
 Undetectable AI | 3.2+0.5 | Free | Yes | Detects AI content across text, image, audio and video, and also rewrites text to evade detection. | vs Charley AI |
 Aithor | 3.6+0.9 | $24.99/mo | Yes | An AI writing assistant built for academic essays, literature reviews, and research papers. | vs Charley AI |
 ReWrite It.AI | 2.9+0.2 | $9.99/mo | Yes | Paraphrase, summarize, and grammar-check your emails, essays, and social posts across multiple languages - a free tier covers up to 250 words. | vs Charley AI |
The alternatives in detail
In order of how closely each one matches Charley AI.
EssayGenius
2.8Free
vs Charley AI+0.1
Type your essay topic, press enter, get a complete essay back in under a minute - idea generation, structuring, citation styles, and rewriting from your own past writing samples.
- Complete essay generation from just a topic, in under a minute
- Idea generation and sentence rephrasing tools
- Selectable citation styles
Genuinely fast turnaround from prompt to finished draft
Generating a near-complete essay from minimal input raises academic-integrity considerations for students submitting work as their own
WriterBuddy
3.7Free
vs Charley AI+1.0
40+ academic writing tools in one place - co-writer, plagiarism checker, citation generator (MLA/APA/Chicago), ChatPDF - across 25+ languages.
- Co-Writer: brainstorming, autocomplete, grammar checking
- Citation generator: MLA, APA, Chicago formats
- Plagiarism checker and AI content detector
Covers the full academic writing workflow, not just drafting
40+ tools means real exploration to find the right one for a task
Smodin
4.2$10/mo
vs Charley AI+1.5
A grab-bag of writing utilities rather than one flagship feature.
- Multi-mode paraphrasing tool
- AI content detector
- Plagiarism checker
Covers many unrelated writing tasks in one account
No single feature matches dedicated specialist tools
GPTinf
3.5$19/mo
vs Charley AI+0.8
A paraphrasing engine that rewrites AI-generated text to read as human-written.
- Rewrites AI-generated text using a non-AI algorithm targeting perplexity and burstiness
- Eight distinct rewrite modes for different tone and style outcomes
- Built-in AI detector that scores text for AI-pattern probability
Addresses detection and rewriting in one interface instead of two separate tools
Independent tests have shown it failing to bypass detectors like GPTZero in some cases
Conch AI
3.8$9.99/mo
vs Charley AI+1.1
Conch AI rewrites, summarizes, and cites text for students and researchers, and rephrases AI-generated writing to read as human-authored.
- AI-generated text rewriting aimed at reducing AI-detector flags
- Research paper drafting and summarization assistant
- Flashcard and mind-map generation from uploaded notes or PDFs
Combines writing, studying, and citation tools instead of separate single-purpose apps
Rewrite/detection-evasion framing raises academic integrity concerns for classroom use
Undetectable AI
3.2Free
vs Charley AI+0.5
Detects AI content across text, image, audio and video, and also rewrites text to evade detection.
- AI text detection with flagged sections
- Image, audio and video AI detection
- Fake PDF detector
Detection across image, audio and video, not just text
Ships a humanizer for evading detection, with students among named users
Aithor
3.6$24.99/mo
vs Charley AI+0.9
An AI writing assistant built for academic essays, literature reviews, and research papers.
- Access to 10M+ academic sources with attached PDFs
- Automatic citation generation inside the editor
- AI Rewriter and Paraphrase tools for revising drafts
Built specifically for academic writing rather than a repurposed general copywriting tool
Marketing around producing undetectable AI writing raises academic-integrity concerns institutions may flag
ReWrite It.AI
2.9$9.99/mo
vs Charley AI+0.2
Paraphrase, summarize, and grammar-check your emails, essays, and social posts across multiple languages - a free tier covers up to 250 words.
- AI paraphrasing, summarization, and grammar checking
- Automatic detection and correction of grammar, spelling, and style issues
- Multiple templates for different writing types
Free tier available to try before paying
Free tier is quite limited at 250 words
FAQ
Questions people ask
Is Charley AI free?
Charley AI has a free plan.
What is the best free alternative to Charley AI?
Smodin is the highest-rated alternative here with a free plan (4.2 out of 5). Other free options: Conch AI, WriterBuddy, Aithor.
What is the cheapest alternative to Charley AI?
Among paid plans, Conch AI has the lowest starting price (from $9.99/mo). If you need it free, start with Smodin.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.