Slack vs Teams: Integration and Connectors for Jira and Confluence

[Alia Azimi]

Can you please clarify on the difference between: 

A) Teams: https://appsource.microsoft.com/en-gb/product/office/WA104380023?src=wnblogmar2018
A) Slack: https://slack.com/apps/A2RPP3NFR-jira-cloud

and

B) Teams: https://marketplace.atlassian.com/apps/1216325/microsoft-teams-jira-connector?hosting=cloud&tab=overview
B) Slack: https://marketplace.atlassian.com/apps/1216557/slack-jira-integration?hosting=cloud&tab=overview

Please clarify on how A and B differs, in terms of features and utility. Please also advice which would be better for my company to use (user size: about 100 users).

Thank you.

[Jack Brickey]

These are simply different implementations provided by different vendors. To assess the differences please read the documentation and/or try them out.