Glossary

Rank change

The number of places an app moved since the previous published edition of the same index.

How it's calculated

Rank change is the app's rank in the previous published edition minus its rank in this one, so a positive number means it climbed. Apps that were not in the previous edition are marked New.

How to read it

Every value can be checked against the previous edition's published list.

Example

In AI Breakout: October 2026, Grok climbs 9 places to #8. See the report →

Used in

Related terms

  • Shadow IT index

    A 0 to 100 score for how often an app is used without being sanctioned by IT. Higher means the app is more often left as discovered shadow IT.

  • Adoption

    The percentage of monitored organizations where an app was adopted during the month measured.

  • Viral score

    A 0 to 10 score for how fast an app is spreading across workplaces.

  • Days to double

    The average number of days for an app's user count to double inside an organization.

Full formulas and limitations on the Methodology page.

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