Hark Pro
Hark Pro is a personal AI that accomplishes real tasks. And it gets even more powerful in Slack.By combining advanced memory and the ability to use a computer in the cloud, Hark understands the context of your life and work to do things for you across the web. You can just tag Hark on Slack to:• Pull up a Google Doc from your Drive
• Schedule a meeting with everyone in one thread
• Summarize recent updates or files in a channel
• Consolidate unstructured problem reports into Linear and Jira tickets
• Order food on DoorDash and Uber Eats
• Book flights across major airlines
• Build websites, spreadsheets, and slide decksHark can keep track of your most important messages, build you a daily schedule, handle your calendar, and summarize dozens of discussions across your workplace into just the things that you need to know.And Hark securely manages your logins to hundreds of sites including Target, Amazon, and LinkedIn so it can handle many tasks from start to finish - right from Slack.Security and privacyYour data is your own. Hark will never sell your data or serve you ads. We also never see your most private information, like stored passwords or credit card numbers, which are always encrypted in storage and in transit. Pricing
Hark's Slack integration is included for free with any active Hark subscription. Please note that Hark is only compatible with paid versions of Slack.Hark is powered by large language models and can produce inaccurate or incomplete responses, summaries, and other outputs. Review important results before relying on them.
• Schedule a meeting with everyone in one thread
• Summarize recent updates or files in a channel
• Consolidate unstructured problem reports into Linear and Jira tickets
• Order food on DoorDash and Uber Eats
• Book flights across major airlines
• Build websites, spreadsheets, and slide decksHark can keep track of your most important messages, build you a daily schedule, handle your calendar, and summarize dozens of discussions across your workplace into just the things that you need to know.And Hark securely manages your logins to hundreds of sites including Target, Amazon, and LinkedIn so it can handle many tasks from start to finish - right from Slack.Security and privacyYour data is your own. Hark will never sell your data or serve you ads. We also never see your most private information, like stored passwords or credit card numbers, which are always encrypted in storage and in transit. Pricing
Hark's Slack integration is included for free with any active Hark subscription. Please note that Hark is only compatible with paid versions of Slack.Hark is powered by large language models and can produce inaccurate or incomplete responses, summaries, and other outputs. Review important results before relying on them.
Hark Pro will be able to view:
Hark Pro will be able to do:
Review the details to better understand this app’s security practices. To learn more about assessing apps for your workspace visit our Help Center.
General
Developer
Hark Labs Inc
Company headquarters location
United States
Terms of service
Privacy & data governance
Data retention policy
Hark synthesizes and stores memories from your Slack data, which are saved indefinitely until the user deletes them. Hark does not retain Slack conversations or logs, event and conversation data is automatically purged from memory within 30 minutes.
Data archiving and removal policy
Hark respects user's right to be forgotten. Users can request data deletion by asking Hark to forget things - account and/or data can be removed altogether by emailing either cancellations@hark.com or privacy@hark.com
Data storage policy
Hark stores the minimum Slack data needed to act as each user's personal assistant:
1. OAuth credentials. Slack user OAuth tokens are stored encrypted at rest (AES-256, AWS KMS-managed keys) in our primary database, are never logged or exposed to clients, and are deleted when the user disconnects the integration or revokes access.
2. Message content for the user's personal memory. When a user's assistant reads Slack messages on their behalf, relevant message content and LLM-derived summaries may be retained in that user's private memory store to power personalization and recall. This data is strictly scoped to the individual user who authorized the connection — it is never shared across users, workspaces, or tenants, and is never used to train models. Users can view and delete stored memories at any time; disconnecting Slack halts all further access, and users may request deletion of all Slack-derived data.
3. Metadata. We store channel/user identifiers and timestamps needed for deduplication and routing.
All data is hosted on AWS in the United States, encrypted in transit (TLS 1.2+) and at rest (AES-256). Employee access follows least-privilege with SSO/MFA, and access to production data is audit-logged. Our security program is monitored continuously via Vanta, with SOC 2 Type II certification in progress. Data is retained only while the user maintains an active account and connection, and is deleted upon account deletion or user request.
Data center location(s)
United States
Data hosting details
Our data is cloud-hosted, access is limited and strictly managed.
Data hosting company
AWS
App/service has sub-processors
no
App/service uses large language models (LLM)
yes
LLM model(s) used
We use a variety of US-based commercial and internal models including: Claude Haiku/Opus, Gemini, GPT4o/Luna
LLM retention settings
zero retention policy in place
LLM data tenancy policy
Multi-tenant architecture with logical tenant isolation and regional . Customer prompts and completions are not shared across tenants and are not used for model training. Zero data retention is available for enterprise API customers.
LLM data residency policy
LLM inputs and outputs are not retained, requests may be routed to US or EU servers based on detected user locale.
Certifications & compliance
Data deletion request procedure
Request deletions from cancellations@hark.com, we will delete any data within 7 days.
HIPAA compliant
no
While this app may offer HIPAA compliance, Slack does not have a business associate agreement with any third-party application providers, including those in the Slack Marketplace, so you are responsible for validating the provider's compliance and executing an appropriate agreement before enabling.
Security
Date of latest pen test
2026-02-27
Executive summary is available to potential customers upon request
no
Supports Single Sign On (SSO) with the following providers
Google
Supports Security Assertion Markup Language (SAML)
no
Has a dedicated security team
yes
Contact for security issues
security@hark.com
Has a vulnerability disclosure program
yes
Vulnerability disclosure program URL
Vulnerability disclosure program covers Slack app
yes
Has a bug bounty program
no
Requires third party authorization/connections
yes
Third party services used by this app
Requests for access are reviewed on a case-by-case basis. https://trust.hark.com/
Uses token rotation
no