Pros & Cons
✓ PROS
7 paraphrase modes including Formal, Creative, Academic
Summarizer cuts long docs to key points in seconds
Chrome extension works in Google Docs, Gmail, everywhere
Grammar checker catches what Grammarly misses
Free plan genuinely usable for light work
✗ CONS
Not a content generator — needs existing text to work
Premium features gated behind paywall aggressively
Paraphrases can lose nuance in technical content
Who Should Use It?
✓ Great for
→ Students and academics
→ Non-native English writers
→ Editing and rewriting drafts
✗ Not ideal for
→ Content creation from scratch
→ Long-form blog posts
→ SEO-first content
Real Output Sample
Actual output from our test session — same prompt across all tools so you can compare.
QUILLBOT · REAL OUTPUTOriginal: "The implementation of artificial intelligence in content workflows has precipitated significant operational efficiencies."
Formal mode: "The adoption of AI in content workflows has led to major operational improvements."
Simple mode: "Using AI in content work has made things a lot more efficient."
Creative mode: "AI has quietly revolutionized how content teams operate, cutting friction at every step."
Marcus Webb
Founder, WriteTested · 14 years in content · 500+ hours testing AI tools
I ran a 20-person content agency before GPT-4 changed the industry. I shut down half the team and started testing every AI writing tool obsessively. Every score on this site comes from real work — not toy prompts, not sponsored placements.