Stacks
United States HQFounded 2026
Deployment
Web-based
Best for
1–10 employees11–50 employees51–100 employees
Overview
About Stacks
Your next customer shouldn't mean another spreadsheet, another login and another round of typing. Stacks brings sales, email campaigns, invoices and bookings together around one shared customer record. Follow the relationship from first hello to paid invoice, and bring your team along with unlimited users and no per-user fees. Start with all modules on the $0 plan. Connect AI agents through MCP or REST API with scoped permissions.
At a glance
Software information
Industries served, licensing and the support Stacks provides.
Industries
- Management-consulting
- Marketing-advertising
- Health-wellness-fitness
- Construction
- Retail
Licensing
- Proprietary
- Monthly Payment
- Annual Subscription
- Free version
Support
- Support daysMondayTuesdayWednesdayThursdayFridaySupport time09:00 to 17:00 (EST)
Training
- Documentation
Knowledge Base
Languages (1)
English
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Stacks features
The full feature set, grouped by module.
Plans
Stacks pricing
Pricing Type
Flat Rate
Free Version
Yes
Payment Frequency
Monthly Payment, Annual Subscription
Preferred Currency
USD ($)
Free: $0, all modules, unlimited users. AI Pro: $99/month or $995/year, with AI across every module subject to fair use and Stacks branding removed.
Works with
Integrations
Stacks connects with the tools your team already uses.
Media
Screenshots & video
