Translate one thought into ten social media dialects, running locally on your phone with no account or cloud.
Stage
Not given
Not given
Founded
Not given
Not given
Based in
LU
US
Pricing model
Paid
Freemium
Pricing
Monthly subscription €8/month or annual subscription €75/year (€6.25/month with 22% savings). Both plans include full access to all features: unlimited devices, unlimited AI requests, multi-language support, works in any app, and 30 days money back guarantee.
Free: 1 rewrite per day. GramBook Unlimited: $1.99 a week or $42 a year.
Key features
Grammar and spelling correction with AI-powered suggestions
Instant translation to and from any language
Tone adjustment from casual to professional, friendly, or persuasive
Text summarization into bullet points
Smart rephrasing for clarity and flow
Custom prompts with keyboard shortcuts
BYOK support with OpenRouter integration
Works in any application without tab switching
Multi-language interface support
GDPR compliant with EU data centers
Runs entirely on device with no cloud or servers
Unlimited regeneration to get different versions
Works in airplane mode
Exports rewrites as customizable meme cards
Supports 16 languages with Apple Intelligence
What makes it different
Native desktop application that works everywhere without browser dependency or tab switching
Privacy-first architecture with zero data storage or processing of user texts
Highly customizable with custom prompts and hotkeys for personalized workflows
Contextually accurate translations that preserve meaning, not just words
All-in-one tool covering grammar, translation, content generation, and tone adjustment
Keeps all text local on your device with zero cloud processing or data transmission
Generates platform-specific content for each social network simultaneously
Free tier with one daily rewrite and no account setup
Works offline in airplane mode without any account or subscription
Pismo
GramBook