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Slack
Slack is a cloud-based team collaboration tool. Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.
15appearances across 1 of 4 indexes
#1best rank, Adoption Index August 2025
30latest Shadow IT index (October 2026)
Summary
- Slack appears 15 times in Torii Research, first in Adoption Index August 2025, most recently in Adoption Index October 2026. Best rank: #1 (Adoption Index August 2025).
Over time
One chart per measure. Values as published in each edition.
Rank in Adoption Index
Rank 1 is at the top. Hover a point for the edition.
Shadow IT index over time
0 to 100; higher means more often unsanctioned. Every edition that reports it.
Every edition
Newest first.
| Index | Edition | Rank | Key metric | Shadow IT | Published |
|---|---|---|---|---|---|
| Adoption Index | October 2026 | #2 | same rank | 30 | 2026-10-08 |
| Adoption Index | September 2026 | #2 | same rank | 29 | 2026-09-02 |
| Adoption Index | August 2026 | #2 | same rank | 28 | 2026-08-02 |
| Adoption Index | July 2026 | #2 | down 1 | 27 | 2026-07-02 |
| Adoption Index | June 2026 | #1 | up 1 | 27 | 2026-06-02 |
| Adoption Index | May 2026 | #2 | same rank | 9 | 2026-05-02 |
| Adoption Index | April 2026 | #2 | down 1 | 12 | 2026-04-02 |
| Adoption Index | March 2026 | #1 | up 1 | 14 | 2026-03-02 |
| Adoption Index | February 2026 | #2 | same rank | 16 | 2026-02-02 |
| Adoption Index | January 2026 | #2 | up 1 | 16 | 2026-01-02 |
| Adoption Index | December 2025 | #3 | same rank | 14 | 2025-12-03 |
| Adoption Index | November 2025 | #3 | down 2 | 14 | 2025-11-05 |
| Adoption Index | October 2025 | #1 | up 1 | 13 | 2025-10-01 |
| Adoption Index | September 2025 | #2 | down 1 | 15 | 2025-09-10 |
| Adoption Index | August 2025 | #1 | same rank | 15 | 2025-08-01 |
Source: Torii Research reports, anonymized and aggregated usage data. Definitions in the glossary.