- Category rank
- #95 in Security & Compliance
- Listing audit
- 57/100
Castle is the #95 ranked Security & Compliance app on Slack, with a free trial, as of Oct 26, 2026.
AppRanks verdict
Generated from marketplace data as of Oct 26, 2026
Castle ranks #95 of 230 in Security & Compliance on Slack. Paid plans come with a free trial; there is no permanent free plan.
Pros
- No standout positives in the measured data.
Cons
- −No free plan (Paid with free trial) — evaluation needs a paid plan or a trial
About Castle
How Castle works
Castle can send notifications to Slack channels whenever items are added to a List. This means that your team can get real time notifications whenever a condition of your choice is applied, and have it be based on any type of entity, such as User, IP or email domain. Slack notifications are a great way of monitoring the impact of Policies before deciding to take action, e.g. to highlight users sharing accounts. Useful links: Pricing - https://castle.io/pricing Privacy - https://castle.io/privacy
Standardized capabilities
AppRanks hasn't mapped this app to standardized capabilities yet. The developer's own feature list is shown above.
Ratings and reviews
Slack does not publish ratings or reviews for its apps.
Category rankings
A category rank is the app's position in Slack's own category listing. Keyword ranks (search-result positions) are a separate measure.
- Security & Compliance#95of 230Top 42%
