Pricing
Free to get organized. Upgrade to unlock the full system.
Stacks is free to use. Organize your documents, build your stacks, and keep everything in one place. When you’re ready to turn your documents into a system with answers, insights, and reminders -- you can upgrade.
Free
Get organized
$0forever
- Unlimited documents & stacks
- Basic organization
- Limited AI queries
- Starter insights
Most Popular
Pro
Turn your documents into a system
$8/month
- Unlimited AI queries
- Full document intelligence
- Smart reminders
- Gap detection
- Timeline view
- Priority processing
Business
Manage documents and systems for others
$40+ / month
- Multiple clients / entities
- Shared access & client portals
- Granular permissions
- Custom stacks & structure
- Centralized document management
- Insights & reminders
- White label
Compare plans
FeatureFreeProBusiness
Unlimited documents
Unlimited stacks
Managed documents
Up to 50
Unlimited
Unlimited
AI queries
Starter included
Pay-as-you-go
Pay-as-you-go
Smart reminders
Gap detection
Timeline view
Export tools
Multiple clients / entities
Client portals
Granular permissions
White label
Mac System Requirements
Stacks is built exclusively for macOS.
- macOS 13 Ventura or later (Sonoma & Sequoia fully supported)
- Apple Silicon (M1, M2, M3, M4) — recommended
- Intel Core i5 64-bit — also supported
- 4 GB RAM minimum, 8 GB recommended for large stacks
- 500 MB disk space for the application
- Internet connection required for AI query processing
- Offline mode: file organization works fully without internet