P
POnline AI paraphrasing tool with multiple rewriting modes in 20+ languages
Free, from $3.96/mo
Spinbot vs WriteHuman
Pricing, features, platforms and who each one suits — side by side.
S
Choose Spinbot if…
- you're in its core audience: students, bloggers
W
Choose WriteHuman if…
- you need an API to build on
- you work on Chrome, iOS, Android
- you're in its core audience: students, content writers
Side by side
Feature Spinbot WriteHuman
Pricing modelFreeFreemium
Starting priceFree$12/mo
Free plan
Free trial
API
Open source
PlatformsWebWeb, Chrome, iOS, Android, API
CategoryParaphrasing & RewritingAI Humanizers
Company—WriteHuman
Full feature lists
S Spinbot
- Paraphrasing and text rewriting
- Up to 10,000 characters per use
- AI summary generator
- Grammar checker
- Spell and punctuation checker
- Online proofreader and essay checker
- No registration needed
W WriteHuman
- Rewrites AI text from ChatGPT, Claude and Gemini
- Sentence-by-sentence AI detection scoring
- AI image detector
- Enhanced humanization model on paid plans
- Up to 5 output variations per request
- Supports 40+ languages
- REST API priced per word
- MCP integration for AI agents
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
Spinbot · spinbot.com
WriteHuman · writehuman.aiWhat you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
Spinbot
FreeFree
WriteHuman
Free$0
Basic$12/mo billed yearly ($20 monthly)
Pro$19/mo billed yearly ($29 monthly)
Ultra$39/mo billed yearly ($59 monthly)
Price changes we've recorded
We re-read each pricing page every month and log what changed.
Spinbot
No changes since we started tracking.
WriteHuman
- Nov 8, 2026Free: Free → $0; Basic: $20 → $12; Pro: $29 → $19; Ultra: $59 → $39
Strengths and limitations
Spinbot
- Free to use without sign-up
- Handles up to about 1,000 words per use
- Several writing tools on one site
- Free version shows ads
- 10,000-character limit per use
WriteHuman
- Free plan includes 3 humanizations and 10 detection checks a month
- Apps for web, Chrome, iOS and Android
- Detector and image detector included on every plan
- Cancel anytime with no contracts
- Free plan limited to 250 words per request
- Monthly billing costs notably more than yearly ($20 vs $12 for Basic)
- Basic plan caps requests at 80 per month
More comparisons
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PP
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P
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AI writing assistant for grammar, tone and rewrites across apps and browsers
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Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy