A design system for language
Define, enforce, and scale your brand's tone of voice, grammar, and writing conventions across product UI, marketing, support, and internal communications.
Everything you need to govern brand language
Define and enforce consistent tone of voice and grammar rules across all written communications.
Configure your brand language
Set up tone, grammar, and style rules through guided onboarding.
Write and rewrite on-brand
Get intelligent suggestions and rewrite text to match your tone automatically.
Validate copy against rules
Check your copy against brand rules and get detailed feedback.
Learn from your existing content
Upload documents or link webpages to automatically discover rules.
Add custom rules as you grow
Create terminology, forbidden words, and custom rules specific to your brand.
Export and share your language system
Share your brand language rules with your team and integrate with your tools.
Built for teams that care about craft
Designed for product designers, UX writers, design leads, and founders who want consistent brand language without the overhead.
Product designers and UX writers
Maintain consistent voice across product UI and user-facing copy.
Brand and content teams
Scale brand voice across marketing, support, and internal communications.
Founders and early teams
Establish brand language from day one without hiring a copywriter.
Teams scaling written communication
Reduce rewrites and debates by making rules explicit and enforceable.
Pricing
Choose the plan that works for you. All plans include core tone and grammar features.
Free
Perfect for individuals and evaluation
£0/month
- 1 brand
- Tone onboarding
- Grammar rules
- Manual rewrite and lint
- Limited monthly usage
Pro
For senior designers and founders
£12/month
- Everything in Free
- Unlimited rewrites and linting
- Full tone and grammar configuration
- Custom rules
- Rule export (Markdown / JSON)
- Multiple contexts (UI, marketing, support)
Team
For product teams and agencies
£35/month
- Everything in Pro
- Multiple brands
- Team members
- Rule set versioning
- Review and approval (when launched)
- CMS, Figma, IDE plugins (when launched)