OnlyStackOnlyStack Org
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About
OnlyStack is OnlyFans agency management software for agencies, managers, and creators running one or more creator accounts. It brings account chats and fan details into a shared workspace, with spend history, notes, subscription information, and past purchases beside conversations. Teams can send paid vault content, organize fans, send mass-message sequences, and automate welcomes, follow-ups, online-fan nudges, and scheduled posts or stories. Analytics track account activity, while individual logins, roles, and creator assignments help managers and chatters work across accounts. OnlyStack offers a web workspace, a macOS and Windows desktop app, and a Chrome extension. Paid plans add automations and, on Pro, AI agents that learn about fans, make content offers, reply to unanswered chats, and re-engage buyers under agency-set limits. A read-only MCP server lets compatible AI apps query account and team data.
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About
Prosyo is an all-in-one B2B multichannel outbound OS for founders, agencies, and sales teams. It eliminates "franken-stacks" by combining intent data, LinkedIn automation, and cold email into a unified workflow.
Key features:
Intent-Led Outreach: Target buyers based on active signals. De-anonymize website visitors, track LinkedIn post engagement, monitor job changes, and capture hiring signals to trigger timely campaigns.
Multichannel Sequences: Automate LinkedIn touchpoints and cold emails in one seamless flow with smart, rules-based branching.
AI Integration: Connect ChatGPT or Claude (via MCP) to automatically draft hyper-personalized icebreakers based on prospect data.
Unified Inbox: Manage replies across all client LinkedIn and email accounts from a single dashboard. Sequences auto-pause on reply.
Agency Scale: Separate client workspaces, robust safety limits to protect accounts, and native webhooks/API.
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
OnlyFans solo creators, agency owners, managers, and chatter teams managing one or more creator accounts.
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Audience
Founders, Marketing Agencies, B2B Sales Teams, Consultants
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Support
Phone Support
Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Supported
24/7 Live Support
Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
$49/account/month
The Free plan covers up to 10 accounts. Plus costs $49–$149 per account per month, and Pro costs $99–$199 per account per month; rates depend on each creator account’s monthly earnings. Both plans include a 7-day free trial. Agency pricing is custom.
Free Version
Supported
Free Trial
Supported
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Pricing
$19/month
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Supported
Live Online
Supported
In Person
Not Supported
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Company InformationOnlyStack Org
Founded: 2025
Estonia
onlystack.com
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Company InformationProsyo
Founded: 2026
India
prosyo.com
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Categories |
Categories |
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Sales Engagement Features
Call Scripts / Call Steps
Not Supported
CRM Integration
Supported
Email Sequences
Supported
Email Tracking / Automation
Supported
Lead Management
Supported
Reporting / Analytics
Supported
Sales / Voice Dialer
Not Supported
Sales Automation
Supported
Search
Supported
Task Management
Not Supported
Templates
Supported
Workflow Management
Supported
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Integrations
Claude
Supported
Cursor
Supported
LinkedIn
Not Supported
Model Context Protocol (MCP)
Supported
OnlyFans
Supported
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Integrations
Claude
Not Supported
Cursor
Not Supported
LinkedIn
Supported
Model Context Protocol (MCP)
Not Supported
OnlyFans
Not Supported
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