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Hangouts ChatSlack
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Price$0 for existing G Suite customers https://gsuite.google.com/pricing.htmlfree or $8 to $15 per month per user with discounts available for annual plans https://slack.com/pricing
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Single Sign On (SSO)Yes - nothing to configureYes with $15/month Enterprise plan and some setup
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Google Drive IntegrationYesYes - but permissions not integrated so must ensure document is shared with correct people to match channel
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Google Calendar IntegrationYes - Including @Meet bot to book meetings with channel members when they're availableYes - but not as feature rich
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Google Hangouts IntegrationYes - Direct messages in Hangouts Chat are sent to users on Google HangoutsPartial - only for opening a Hangouts video conference/meeting from within a channel. No direct message integration to Hangouts
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Gmail Inbox Integration on web browserYes - New chat message indicator appears top right corner which helps bring users into Hangouts Chat organically from the user interface they use constantlyNo - Users must open Slack to be notified of new messages
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Mobile AppsAndroid, iOSAndroid, iOS
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eDiscovery /ComplianceYes - fully integrated to Google Vault so admins can set retention policies, search, and retain data for legal matters https://gsuiteupdates.googleblog.com/2018/02/google-vault-support-for-hangouts-chat.htmlPartial - On Enterprise plan admins can export all data from a channel. Additional cost add-on tools are available that work with the Discovery API https://get.slack.help/hc/en-us/articles/204897248-Guide-to-Slack-data-exports
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Conversation ThreadingYes. Built to always thread conversations keeping messages in contextPartial - Does not thread by default but users can choose to thread messages. https://get.slack.help/hc/en-us/articles/115000769927-Message-threads
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SecuritySupports all G Suite security features and admin settings such as two-factor authentication, mobile device management for remote wipe, security keys, etc. No separate user directory to manage.Supports two-factor authentication but must be managed separately unless on Enterprise plan and logins are restricted to G Suite SSO. Users must be added/deleted separately. Remote wipe not available without third party apps
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Languages28 supported5 supported
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3rd party integrationsYesYes - certainly Slack's popularity and eco-system of addons has an advantage
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Questions or Comments? Please contact us at http://www.interlockit.com/Home/contact-us
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