Variables are used to define the memory of the app via key indicators.

There are several types of variables (click to be redirected to the corresponding article):

**Boolean:**
[✅ Set up true/false conditions
](https://chatwoot.fr.nocodespacelab.com/hc/celestorydoc/articles/en-discover-celestory-set-up-true-false-conditions-7d1032)

**Numeric:**
[🧮 Set up numeric conditions
](https://chatwoot.fr.nocodespacelab.com/hc/celestorydoc/articles/en-discover-celestory-set-up-numerical-conditions-f738b0)

**Text**
[💬 Customize a text/score
](https://chatwoot.fr.nocodespacelab.com/hc/celestorydoc/articles/en-discover-celestory-personalize-a-text-score-0d1f46)

**Image:**
[🖼️ Image variable](https://chatwoot.fr.nocodespacelab.com/hc/celestorydoc/articles/en-examples-image-variable-57e0fa)

**List**
[ 🎒 Create an inventory](https://chatwoot.fr.nocodespacelab.com/hc/celestorydoc/articles/en-discover-celestory-inventory-317536)

**Date**
[📅 Date variable](lien:tool-elements/date-variable.md)

**Single select and Multiple select**
[⛓ Selection variables (single and multiple)](lien:tool-elements/selection-variables.md)