diff --git a/README.md b/README.md
index 45c088e..4046b56 100644
--- a/README.md
+++ b/README.md
@@ -138,20 +138,22 @@ yarn add @untemps/svelte-use-tooltip
 
 ## API
 
-| Props                     | Type    | Default           | Description                                                                                                     |
-|---------------------------|---------|-------------------|-----------------------------------------------------------------------------------------------------------------|
-| `content`                 | string  | null              | Text content to display in the tooltip.                                                                         |
-| `contentSelector`         | string  | null              | Selector of the content to display in the tooltip.                                                              |
-| `contentActions`          | object  | null              | Configuration of the tooltip actions (see [Content Actions](#content-actions)).                                 |
-| `containerClassName`      | string  | '__tooltip'       | Class name to apply to the tooltip container.                                                                   |
-| `position`                | string  | 'top'             | Position of the tooltip. Available values: 'top', 'bottom', 'left', 'right'                                     |
-| `animated`                | boolean | false             | Flag to animate tooltip transitions.                                                                            |
-| `animationEnterClassName` | string  | '__tooltip-enter' | Class name to apply to the tooltip enter transition.                                                            |
-| `animationLeaveClassName` | string  | '__tooltip-leave' | Class name to apply to the tooltip leave transition.                                                            |
-| `enterDelay`              | number  | 0                 | Delay before showing the tooltip in milliseconds.                                                               |
-| `leaveDelay`              | number  | 0                 | Delay before hiding the tooltip in milliseconds.                                                                                |
-| `offset`                  | number  | 10                | Distance between the tooltip and the target in pixels.                                                          |
-| `disabled`                | boolean | false             | Flag to disable the tooltip content.                                                                            |
+| Props                     | Type    | Default           | Description                                                                     |
+|---------------------------|---------|-------------------|---------------------------------------------------------------------------------|
+| `content`                 | string  | null              | Text content to display in the tooltip.                                         |
+| `contentSelector`         | string  | null              | Selector of the content to display in the tooltip.                              |
+| `contentActions`          | object  | null              | Configuration of the tooltip actions (see [Content Actions](#content-actions)). |
+| `containerClassName`      | string  | '__tooltip'       | Class name to apply to the tooltip container.                                   |
+| `position`                | string  | 'top'             | Position of the tooltip. Available values: 'top', 'bottom', 'left', 'right'     |
+| `animated`                | boolean | false             | Flag to animate tooltip transitions.                                            |
+| `animationEnterClassName` | string  | '__tooltip-enter' | Class name to apply to the tooltip enter transition.                            |
+| `animationLeaveClassName` | string  | '__tooltip-leave' | Class name to apply to the tooltip leave transition.                            |
+| `enterDelay`              | number  | 0                 | Delay before showing the tooltip in milliseconds.                               |
+| `leaveDelay`              | number  | 0                 | Delay before hiding the tooltip in milliseconds.                                |
+| `onEnter`                 | func    | null              | Callback triggered when the tooltip appears.                                    |
+| `onLeave`                 | func    | null              | Callback triggered when the tooltip disappears.                                    |
+| `offset`                  | number  | 10                | Distance between the tooltip and the target in pixels.                          |
+| `disabled`                | boolean | false             | Flag to disable the tooltip content.                                            |
 
 ### Content and Content Selector
 
diff --git a/dev/src/App.svelte b/dev/src/App.svelte
index 53c71b5..2311d2a 100644
--- a/dev/src/App.svelte
+++ b/dev/src/App.svelte
@@ -6,16 +6,30 @@
 
 	let showSettings = false
 
-	let tooltipTextContent = null
-	let useCustomTooltipClass = false
-	let tooltipPosition = 'top'
-	let isTooltipDisabled = false
-	let animateTooltip = false
+	let textContent = null
+	let useCustomClass = false
+	let position = 'top'
+	let isDisabled = false
+	let animate = false
 	let useCustomAnimationEnterClass = false
 	let useCustomAnimationLeaveClass = false
-	let tooltipEnterDelay = 200
-	let tooltipLeaveDelay = 200
-	let tooltipOffset = 10
+	let enterDelay = 200
+	let leaveDelay = 200
+	let triggerOnEnter = false
+	let triggerOnLeave = false
+	let offset = 10
+
+	const _onTooltipEnter = () => {
+		if(triggerOnEnter) {
+		    alert('You\'ve entered the target')
+		}
+	}
+
+	const _onTooltipLeave = () => {
+		if(triggerOnLeave) {
+			alert('You\'ve left the target')
+		}
+	}
 
 	const _onTooltipClick = (arg, e) => {
 		e.preventDefault()
@@ -204,20 +218,20 @@
             <form class="settings__form">
                 <fieldset>
                     <label>
-                        Tooltip Text Content:
-                        <input type="text" bind:value={tooltipTextContent}/>
+                        Text Content:
+                        <input type="text" bind:value={textContent}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Use Custom Tooltip Class:
-                        <input type="checkbox" bind:checked={useCustomTooltipClass}/>
+                        Use Custom Class:
+                        <input type="checkbox" bind:checked={useCustomClass}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Tooltip Position:
-                        <select bind:value={tooltipPosition}>
+                        Position:
+                        <select bind:value={position}>
                             <option value="left">Left</option>
                             <option value="right">Right</option>
                             <option value="top">Top</option>
@@ -227,44 +241,56 @@
                 </fieldset>
                 <fieldset>
                     <label>
-                        Animate tooltip:
-                        <input type="checkbox" bind:checked={animateTooltip}/>
+                        Animate:
+                        <input type="checkbox" bind:checked={animate}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Use Custom Tooltip Animation Enter Class:
+                        Use Custom Animation Enter Class:
                         <input type="checkbox" bind:checked={useCustomAnimationEnterClass}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Use Custom Tooltip Animation Leave Class:
+                        Use Custom Animation Leave Class:
                         <input type="checkbox" bind:checked={useCustomAnimationLeaveClass}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Tooltip Enter Delay (ms):
-                        <input type="number" step={100} min={0} bind:value={tooltipEnterDelay}/>
+                        Enter Delay (ms):
+                        <input type="number" step={100} min={0} bind:value={enterDelay}/>
+                    </label>
+                </fieldset>
+                <fieldset>
+                    <label>
+                        Leave Delay (ms):
+                        <input type="number" step={100} min={0} bind:value={leaveDelay}/>
+                    </label>
+                </fieldset>
+                <fieldset>
+                    <label>
+                        Trigger callback on enter:
+                        <input type="checkbox" bind:checked={triggerOnEnter}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Tooltip Leave Delay (ms):
-                        <input type="number" step={100} min={0} bind:value={tooltipLeaveDelay}/>
+                        Trigger callback on leave:
+                        <input type="checkbox" bind:checked={triggerOnLeave}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Tooltip Offset (px):
-                        <input type="number" step={1} min={5} bind:value={tooltipOffset}/>
+                        Offset (px):
+                        <input type="number" step={1} min={5} bind:value={offset}/>
                     </label>
                 </fieldset>
                 <fieldset>
                     <label>
-                        Disable Tooltip:
-                        <input type="checkbox" bind:checked={isTooltipDisabled}/>
+                        Disable:
+                        <input type="checkbox" bind:checked={isDisabled}/>
                     </label>
                 </fieldset>
             </form>
@@ -276,9 +302,9 @@
         </button>
         <div
                 use:useTooltip={{
-				position: tooltipPosition,
-				content: tooltipTextContent,
-				contentSelector: !tooltipTextContent?.length ? '#tooltip__template' : null,
+				position: position,
+				content: textContent,
+				contentSelector: !textContent?.length ? '#tooltip__template' : null,
 				contentActions: {
 					'*': {
 						eventType: 'click',
@@ -287,14 +313,16 @@
 						closeOnCallback: true,
 					},
 				},
-				containerClassName: useCustomTooltipClass ? `tooltip tooltip-${tooltipPosition}` : null,
-				animated: animateTooltip,
+				containerClassName: useCustomClass ? `tooltip tooltip-${position}` : null,
+				animated: animate,
 				animationEnterClassName: useCustomAnimationEnterClass ? 'tooltip-enter' : null,
 				animationLeaveClassName: useCustomAnimationLeaveClass ? 'tooltip-leave' : null,
-				enterDelay: tooltipEnterDelay,
-				leaveDelay: tooltipLeaveDelay,
-				offset: tooltipOffset,
-				disabled: isTooltipDisabled,
+				enterDelay: enterDelay,
+				leaveDelay: leaveDelay,
+				onEnter: _onTooltipEnter,
+				onLeave: _onTooltipLeave,
+				offset: offset,
+				disabled: isDisabled,
 			}}
                 class="target"
         >
diff --git a/package.json b/package.json
index 2ce5d8a..0f143c0 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
 		"@testing-library/dom": "^8.11.3",
 		"@testing-library/jest-dom": "^5.11.6",
 		"@testing-library/svelte": "^3.0.3",
-		"@untemps/utils": "^2.0.0-beta.1",
+		"@untemps/utils": "^2.4.0",
 		"babel-jest": "^28.0.0-alpha.11",
 		"cross-env": "^7.0.3",
 		"husky": "^7.0.4",
@@ -61,6 +61,7 @@
 	},
 	"dependencies": {
 		"@untemps/dom-observer": "^2.0.0",
+		"@untemps/utils": "^2.4.0",
 		"svelte": "3.49.0"
 	},
 	"jest": {
diff --git a/src/Tooltip.js b/src/Tooltip.js
index 098178e..9c8d10f 100644
--- a/src/Tooltip.js
+++ b/src/Tooltip.js
@@ -1,4 +1,5 @@
 import { DOMObserver } from '@untemps/dom-observer'
+import { standby } from '@untemps/utils/async/standby'
 
 class Tooltip {
 	static #instances = []
@@ -16,6 +17,8 @@ class Tooltip {
 	#animationLeaveClassName = null
 	#enterDelay = 0
 	#leaveDelay = 0
+	#onEnter = null
+	#onLeave = null
 	#offset = 10
 
 	#observer = null
@@ -46,6 +49,8 @@ class Tooltip {
 		animationLeaveClassName,
 		enterDelay,
 		leaveDelay,
+		onEnter,
+		onLeave,
 		offset,
 		disabled
 	) {
@@ -60,6 +65,8 @@ class Tooltip {
 		this.#animationLeaveClassName = animationLeaveClassName || '__tooltip-leave'
 		this.#enterDelay = enterDelay || 0
 		this.#leaveDelay = leaveDelay || 0
+		this.#onEnter = onEnter || null
+		this.#onLeave = onLeave || null
 		this.#offset = Math.max(offset || 10, 5)
 
 		this.#observer = new DOMObserver()
@@ -86,6 +93,8 @@ class Tooltip {
 		animationLeaveClassName,
 		enterDelay,
 		leaveDelay,
+		onEnter,
+		onLeave,
 		offset,
 		disabled
 	) {
@@ -109,6 +118,8 @@ class Tooltip {
 		this.#animationLeaveClassName = animationLeaveClassName || '__tooltip-leave'
 		this.#enterDelay = enterDelay || 0
 		this.#leaveDelay = leaveDelay || 0
+		this.#onEnter = onEnter || null
+		this.#onLeave = onLeave || null
 		this.#offset = Math.max(offset || 10, 5)
 
 		if (hasContentChanged || hasPositionChanged || hasOffsetChanged) {
@@ -366,6 +377,8 @@ class Tooltip {
 		if (this.#target === e.target) {
 			await this.#waitForDelay(this.#enterDelay)
 			await this.#appendTooltipToTarget()
+			await standby(0)
+			this.#onEnter?.()
 		}
 	}
 
@@ -373,6 +386,8 @@ class Tooltip {
 		if (this.#target === e.target || !this.#target.contains(e.target)) {
 			await this.#waitForDelay(this.#leaveDelay)
 			await this.#removeTooltipFromTarget()
+			await standby(0)
+			this.#onLeave?.()
 		}
 	}
 
diff --git a/src/__tests__/useTooltip.test.js b/src/__tests__/useTooltip.test.js
index c8e97cb..1359101 100644
--- a/src/__tests__/useTooltip.test.js
+++ b/src/__tests__/useTooltip.test.js
@@ -421,6 +421,30 @@ describe('useTooltip', () => {
 		})
 	})
 
+	describe('useTooltip props: onEnter', () => {
+		it('Triggers callback when entering tooltip', async () => {
+			const onEnter = jest.fn()
+			action = useTooltip(target, {
+				...options,
+				onEnter,
+			})
+			await _enter(target)
+			await standby(0)
+			expect(onEnter).toHaveBeenCalled()
+		})
+
+		it('Triggers callback when entering tooltip after update', async () => {
+			const onEnter = jest.fn()
+			action = useTooltip(target, options)
+			action.update({
+				onEnter,
+			})
+			await _enter(target)
+			await standby(0)
+			expect(onEnter).toHaveBeenCalled()
+		})
+	})
+
 	describe('useTooltip props: leaveDelay', () => {
 		it('Delays tooltip disappearance', async () => {
 			action = useTooltip(target, {
diff --git a/src/useTooltip.js b/src/useTooltip.js
index 68ca90c..75c9ac0 100644
--- a/src/useTooltip.js
+++ b/src/useTooltip.js
@@ -15,6 +15,8 @@ const useTooltip = (
 		animationLeaveClassName,
 		enterDelay,
 		leaveDelay,
+		onEnter,
+		onLeave,
 		offset,
 		disabled,
 	}
@@ -31,6 +33,8 @@ const useTooltip = (
 		animationLeaveClassName,
 		enterDelay,
 		leaveDelay,
+		onEnter,
+		onLeave,
 		offset,
 		disabled
 	)
@@ -47,6 +51,8 @@ const useTooltip = (
 			animationLeaveClassName: newAnimationLeaveClassName,
 			enterDelay: newEnterDelay,
 			leaveDelay: newLeaveDelay,
+			onEnter: newOnEnter,
+			onLeave: newOnLeave,
 			offset: newOffset,
 			disabled: newDisabled,
 		}) =>
@@ -61,6 +67,8 @@ const useTooltip = (
 				newAnimationLeaveClassName,
 				newEnterDelay,
 				newLeaveDelay,
+				newOnEnter,
+				newOnLeave,
 				newOffset,
 				newDisabled
 			),
diff --git a/yarn.lock b/yarn.lock
index 79013a4..d174b2b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2365,10 +2365,10 @@
   resolved "https://registry.yarnpkg.com/@untemps/dom-observer/-/dom-observer-2.0.0.tgz#5b86b091f62905a6f18b0280bbf9067f2949716f"
   integrity sha512-oZBj7j9hYSbuveNFvyPLamRfNh15KvGJC5pLGGpWVcO61EzISMESL0wudwP0UZETEu+0WfaJ16rGXtEZHsq+xw==
 
-"@untemps/utils@^2.0.0-beta.1":
-  version "2.0.0-beta.1"
-  resolved "https://registry.yarnpkg.com/@untemps/utils/-/utils-2.0.0-beta.1.tgz#c7369b7efb06d0b7283e81e09d42207240dd9f8a"
-  integrity sha512-XwZzhIRcjDA2em+fGNLjbSqnq8UD5GtqqeENtuQAn73ztcGZCX/5eAhL9BK63wgnalwOO3wN+y9SfN+IXYjt4Q==
+"@untemps/utils@^2.4.0":
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/@untemps/utils/-/utils-2.4.0.tgz#56d47022f289d7c1578d587d33c922d494b921f1"
+  integrity sha512-SC8iU/J0HLXaDBd1NiXu4Tgal0WaeMIEDP4aaX/aotD8iwLi7vfihGwm970ATHZJphPheuPPZM9igsD4scr9og==
   dependencies:
     "@babel/runtime" "^7.17.8"