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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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RewriteBar
✓ verifiedFree trial
macOS menu-bar AI writing assistant that fixes grammar, translates, and runs custom text-rewriting actions in any app via keyboard shortcut.
15K visits/mo37K saves
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Inbox Zero
✓ verifiedFree trial
Open-source AI email assistant that auto-labels mail, drafts replies in your voice and helps clear your inbox from web or Slack.
68K visits/mo1.6K saves
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LlamaIndex
✓ verifiedFreemium
Developer framework and LlamaParse service for parsing documents and building AI agents and RAG workflows over them.
455K visits/mo1.9K saves
Pricing
Standard: $29 one-time (1 device, 35,000 one-time credits)
Pro: $59 one-time (3 devices, 3,000,000 credits/month, includes 1-year AI Gateway subscription)
Extra Device add-on: $19 one-time
RewriteBar Gateway: $40/year (53 AI models, 3,000,000 credits/month)
Free trial available
Starter: $18/user/mo
Plus: $28/user/mo
Professional: $42/user/mo
Free trial available
Essential: $24.99 / mo
Premium: $39.99 / mo
Ultimate: $59.99 / mo
No public pricing
Core features
- ✦Grammar and spelling correction triggered from any app
- ✦Translation across 500+ languages
- ✦Custom, chainable AI actions (e.g., summarize, humanize, fix JSON)
- ✦PopClip integration and global keyboard shortcuts
- ✦Support for local AI models (Ollama, LM Studio, Apple Intelligence)
- ✦One-time license options instead of mandatory subscription
- ✦Side-by-side comparison of rewritten vs. original text
- ✦Automatic email labeling and categorization
- ✦Pre-drafted replies in your voice
- ✦Bulk unsubscribe and archive
- ✦Auto-files attachments to Drive/OneDrive
- ✦Works from web, Slack and Telegram
- ✦Open-source and self-hostable, SOC 2 Type 2
- ✦AI-powered trading indicators
- ✦Screeners for identifying high-probability setups
- ✦Backtesters for strategy optimization
- ✦AI Backtesting Assistant for automated strategy building
- ✦Community support and educational resources
- ✦LlamaParse document parsing and extraction
- ✦Open-source framework for AI agents and workflows
- ✦Document indexing for retrieval/RAG
- ✦Prebuilt solutions by industry and use case
- ✦Free starter credits for LlamaParse
Use cases
- →Mac users wanting quick grammar and tone fixes without leaving their app
- →Multilingual users translating text inline while writing
- →Developers wanting one-click JSON error fixing or ASCII art generation
- →Privacy-conscious users preferring local AI models over cloud APIs
- →Reaching inbox zero quickly
- →Drafting replies faster
- →Cleaning up subscriptions
- →Managing email without switching apps
- →Automating complicated price action analysis
- →Generating trading signals and detecting reversals
- →Scanning assets for specific trading criteria
- →Backtesting and optimizing trading strategies
- →Building trading strategies with AI assistance
- →Parse complex documents for AI apps
- →Build RAG and agent workflows
- →Automate invoice and claims processing
- →Search across technical documents
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